Control Products A4 User Manual

Download

PILOT-OPERATED

REGULATING VALVES

116

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Pilot-Operated Regulating Valves

REGULATING VALVES

PILOT-OPERATED

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

117

HD Series Pilot-Operated Regulators

PILOT-OPERATED REGULATORS

Pilot-Operated Regulators are more accurate and offer higher capacities than standard direct-operated regulators. They will maintain constant set outlet pressure even when inlet pressure fluctuates or variations in flow occur. With the proper selection of pilots, these regulators will accurately control temperature, pressure, or a combination of both.

PILOT-OPERATED

HD-Series

REGULATING VALVES

Steam Service

& temperature rating, a large full-port strainer with blow-down valve on pilot adapter which keeps dirt from entering control pilots, and field reversible pilot-mounting for versatile and easy installation.

The HD-Series Regulator features Ductile Iron construction for increased pressure

Page No.

HD Series Pilot-Operated Regulating Valve 120-123

DUCTILE IRON BODY

HD Regulators are used in conjunction with the appropriate Pilot(s) to control Steam Pressure or Process Temperature

PILOTS for HD Regulators 124-135

“P” & “P5” Pressure Pilots -

The “P5” is used for special applications requiring 0.5 PSI accuracy.

The “P” is the standard spring-loaded pressure pilot. 124

“BP” Back Pressure Pilot - Controls system back pressure. 125

“T” Temperature Pilot - Used for controlling temperature. 126-127

“A” Air Pilot -

“PTR” & “PTL”

“TRP” Temperature Pilot - Special purpose temperature pilot for controlling low temperatures 132

“S” Solenoid Pilot - Used in conjunction with any of the above pilots for electrical on/off 133

“DP” DP Pilot - Differential Pressure pilot – used when trying to balance two different 134

Also used for temperature control when used in conjunction with the “PTR” or “PTL” temperature controller.

Temperature Controllers

a wider temperature range than the standard “T” Pilot.

outside the range of the standard “T” Pilot. Also available with special sensing bulbs.

control of HD Regulators.

media sources that are being blended

Normally used for controlling steam pressure using an air signal.

(used with “A” Air Pilot) - The “PTR” or “PTL” will control

128-129

130-131

Over Pressure Protection Methods 135

118

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

HD Series Regulators (with commonly used Pilots) 136-143

HDP Pressure Regulator 136-137

(HD Regulator with “P” Pressure Pilot)

HDT Temperature Regulator 138-139

(HD Regulator with “T” Temperature Pilot)

HDA Air Controlled Pressure Regulator 140-141

(HD Regulator with “A” Air Pilot)

REGULATING VALVES

PILOT-OPERATED

HDP T Pressure & Temperature Regulator

(HD Regulator with “P” Pressure & “T” Temperature Pilot)

142-143

HSP Series Pilot-Operated Pressure Regulating Valve

CAST STEEL BODY

The Watson McDaniel HSP Pilot-operated Regulating Valve is constructed of Cast Carbon Steel for higher pressure &

Noise Attenuation - Reduces noise in pressure reducing applications 148-151

Noise Attenuators for Pressure Regulators – Series A, H & S 146-149

Capacities for Sizing of HD & HSP Series Regulators 150-151

temperature ratings.

144-145

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

119

REGULATORS

HD Series

Pilot-Operated Regulating Valve

Ductile Iron

Model HD-Series Sizes 1/2” – 6” Connections Threaded 1/2” - 2”

Flanged 150# 1” - 6” Flanged 300# 1” - 6”

Body Material Ductile Iron PMO Max. Operating Pressure 300 PSIG

Design Pressure/ NPT 450 PSIG @ 650˚ F Temperature Ratings 150# FLG 150 PSIG @ 566˚ F

REGULATING VALVES

PILOT-OPERATED

TMA/PMA 300# FLG 450 PSIG @ 650˚ F

TYPICAL APPLICATIONS

The Watson McDaniel HD-Series pilot operated regulators were designed for extremely accurate control of temperature and

pressure in steam service applications. The HD-Series is made of Ductile-iron for extended pressure and temperature ratings. These

regulators use several different control pilots, which can be attached to the valve to control pressure, temperature, or a combination of both. The different control pilots can be added or removed from the regulator body. This modular design adds to the versatility of this product. The most common options include the P-Pilot for pressure reducing, and the T-Pilot for temperature control.

Ductile Iron Body

Hardened SST (55 Rc) Seat & Disk

INLET

Self-cleaning stem guide

Spring protected from steam

High Tensile

Diaphragm

• Ductile Iron body for higher pressures

• Full port strainer & blowdown

• Hardened stainless steel trim

• Pre-mounted tubing & field reversible

• Optional reduced port trim

• Low differential pressure option

• Low inlet pressure option

Right or Left Pilot Mounting Available

(Non-standard left mounted shown)*

Full Port Pilot Strainer with built-in Blowdown Valve

* Standard pilot mounting is

on the right side of the regulator when looking into the outlet port. Pilot mounting on HD regulators are field reversible.

valve on pilot adapter for ultimate protection from dirt & scale

for extended life

pilot adapter

FEATURES

No external power source is required.

•

This simplifies the valve and minimizes installation and maintenance costs.

Pressure and temperature pilots can be used

•

in combination eliminating the need for a separate pressure and temperature regulator

Ductile iron for higher pressure ranges and

•

increased safety. Ductile Iron is a better choice than cast iron for steam applications.

Full port strainer and blowdown valve on

•

pilot adapter for ultimate protection against dirt and scale

Hardened stainless steel trim (55 Rc) for

•

extended life even in the most demanding applications

The innovative design allows the pilot to be

•

mounted on either side of the regulator and is easily field reversible

Comes fully assembled with tubing and pilot

•

adapter. The control pilot requires only four bolts to complete the installation.

120

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

REGULATORS

HD Series

Pilot-Operated Regulating Valve

TYPICAL PILOTS

PRESSURE

Pilot

AIR

Pilot

TEMPERATURE

Pilot

SOLENOID

Pilot

CONTROL PILOTS

Pilot Mounting

Standard pilot mounting is on the right side of the regulator when looking into the outlet port (see diagrams on next page which are all right mounted). For opposite mounting, please specify when ordering. Pilot mounting on HD regulators are field reversible.

Pressure

When controlling pressure there are several options you can use for a pilot. The P-Pilot and the P5-Pilot are both spring adjusted pressure pilots. The P-Pilot is used on typical general-purpose pressure reducing applications. The P5-Pilot is used when higher accuracy is required and is capable of maintaining a control pressure window of less then 1 PSI. The A-Pilot is air controlled and generally used when adjustment of the regulator and pressure reducing station is done remotely.

Temperature

The T-Pilot is used to control temperature. The T-Pilot is filled with a temperature sensitive liquid, which expands when heated. The expansion of this liquid actuates a bellows that controls the temperature-regulating valve. The T-Pilot is equipped with an overheat bellows that protects the pilot in case of an over temperature condition. The T-Pilot controls temperature through a range of 60-260˚F. Spec: ANSI/FCI 70-2 Class IV shut-off.

TYPICAL APPLICATIONS

• Pressure Regulating

• Temperature Regulating

• Pressure-Temperature Control

• Back Pressure Control

• Differential Pressure Control

On-Off

On-off control of the regulator is possible by using the S-Solenoid

Pilot. The S-Pilot allows the regulator to be shut off or turned on electrically. Normally the regulator is equipped with either a P-Pressure Pilot or T-Temperature Pilot in addition to the

S-Solenoid Pilot.

Pressure-Temperature

The PT-Pilot combination is used when it is desirable to control both the pressure and temperature of a system with only one regulating valve. The unique features of this modular valve allow this to be accomplished quite easily. When the PT-Pilot combination is used, the downstream pressure is limited to a maximum setting by the pressure pilot, while the temperature pilot maintains the correct temperature.

Back Pressure

When controlling the back pressure in a steam system, the BP-Pilot is used in conjunction with the HD-Series Regulator. This controls the pressure on the upstream side of the regulator.

Differential Pressure

The DP-Pilot is used when trying to balance two different media sources that are being blended.

REGULATING VALVES

PILOT-OPERATED

COMBINATION PILOTS

One of the advantages of the HD-Series regulating valve is that it can be used with many different variations of control pilots. Up to three pilots can be used simultaneously to control the operation of these valves. The most common is the “PT” PressureTemperature combination pilots. In addition to these pilots being used together the S-Solenoid Pilot can be used for turning the system on and off. (See next page for combination examples.)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

121

REGULATORS

HD Series

Pilot-Operated Regulating Valve

TYPICAL REGULATOR & PILOT COMBINATIONS

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

PILOT-OPERATED

Regulator

REGULATING VALVES

Solenoid Pilot

HDA

with

Air Pilot

HDS

Regulator

with

HDP

Regulator

with

Pressure Pilot

HDPS

Regulator

with

Pressure & Solenoid

Pilots

HDT

Regulator

with

Temperature

Pilot

HDTS

Regulator

with Temperature & Solenoid Pilots

HDPT

Regulator

Pressure &

Temperature

122

HDPTS

Regulator

with

Pilots

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

with

Pressure,

Temperature &

Solenoid Pilots

OTHER PILOT CONFIGURATIONS USED WITH HD REGULATOR

• Air / Solenoid

• Air / Pneumatic Temperature Controller

• Air / Solenoid / Pneumatic Temperature Controller

• Back Pressure

• Back Pressure / Solenoid

• Differential Pressure

Watson McDaniel’s Pilots will fit other

Manufacturers’ Regulators.

www.watsonmcdaniel.com

REGULATORS

HD Series

Pilot-Operated Regulating Valves

HD-Series DIMENSIONS –

(A) Face-To-Face Weight (lbs) Size NPT 150# 300# B C D NPT 150# 300# 1/2” 4 3/4” 4

11/4” 6 11/2” 7

21/2” 9

1” 5

2” 7

3” 10 10 4” 11 6” 15

10 9 5

16 14

inches / pounds

3 3 3 4 4 5

6 7

10 19

7 23 40 45

18 18

43 43 55 60 65 75 85

100 105 130 145 215 235 420 470

Option: Stainless diaphragms and external tubing - consult factory

MATERIALS

Body Ductile Iron Cover Ductile Iron Gasket Grafoil Cover Screws Steel Pilot Adapter Ductile Iron/Cast Steel Screen Stainless Steel Tubing Copper Valve Seat Hardened SST (55Rc) Valve Disc Hardened SST (55Rc) Diaphragm Phosphor Bronze

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure (for Valve):

15 PSIG (Standar 5 PSIG (Low Pr

Minimum Differential Pressure

10 PSI (Standar 3 PSI (Low Pr

* Not required for Temperature Pilot applications

d Main Valve)

essure Main Valve)

(for Valve):*

d Main Valve)

essure Main Valve)

HOW TO ORDER

REGULATOR BODY

Specify: • HD regulator body

• Regulator size or capacity of steam required

• End connections (threaded, 150/300# flanged)

PILOT REQUIRED TO OPERA

Note: See “How to Order” in specific Pilot Section

• T Temperature Pilot

• P Pressure Pilot

• A Air Pilot

• S Solenoid Pilot

• BP Back Pressure Pilot

• PD Differential Pressure

TE THIS VALVE

REGULATING VALVES

PILOT-OPERATED

FLOW

FLG

NPT

Pilot mounting

surface

OUT

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Standard pilot mounting is on the right side of the regulator when looking into the outlet port (as shown). Pilot mounting on HD regulators are field reversible.

123

PILOTS

“

Pressure Pilot for HD Regulating Valves

”

“

P5”Pilot

Pressure Pilot

• Max Inlet Pressure: 300 PSIG

• Reduced Outlet Pressure Range: 3-200 PSIG

• Minimum Inlet Pressures:

15 PSIG when used with standard main valve

5 PSIG when used with low pressure main valve

• P-Pilot (Standard)

• P5-Pilot (Special)

REGULATING VALVES

PILOT-OPERATED

PRESSURE-ADJUSTING SPRING RANGES

“P” Pressure Range “P5” Pressure Range Identifying Colors

3-25 PSIG 1-10 PSIG yellow 20-100 PSIG 10-25 PSIG blue 80-200 PSIG – red

1 PSIG accuracy

0.5 PSIG accuracy

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

MATERIALS

Pilot Body & Cover Ductile Iron or Cast Steel Gasket Grafoil Diaphragm Phosphor Bronze Head & Seat Assembly Hardened SST (55 Rc)

TYPICAL APPLICATIONS

The “P” & “P5” Pressure Pilots are used with the HD Regulator

to control steam pressure in steam mains or for process equipment. Pilot operated regulators will maintain constant downstream pressure even when the inlet pressure to the valve fluctuates or steam usage varies.

FEATURES

The “P” Pilot can maintain downstream pressure to ±1 PSIG

•

“P5” Pilot can maintain downstream pressure to ±0.5 PSIG

•

Choic

es of three overlapping pressure ranges

•

Pressure control spring can be changed in line

•

Pilot is easily installed using only four bolts

•

Full port strainer and blowdown valve on pilot adapter for

•

ultimate protection from dirt and scale Can be used with temperature and solenoid control pilot

•

Solid floating diaphragm is more failure resistant

•

Watson McDaniel's pilots can be used with other

•

manufacturers’ regulators

OPTIONS

Pressure pilot can be used with temperature pilot to eliminate

•

the need for two separate regulators Solenoid pilot can be added for remote on/off control

•

of regulator “P5” Pilot will maintain +0.5 PSIG accuracy

•

HOW TO ORDER

“P”, “P5” PRESSURE PILOT

Specify: • Reduced pressure range – Example: “P” Pilot at 3-25 PSIG, yellow

REGULA Specify: • HD regulator body

TOR BODY

• Regulator size or capacity

• End connections (threaded, 150/300# flanged)

Steam Sensing Line

Connection

1/4” NPT

91/2

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

124

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

Units: inches

www.watsonmcdaniel.com

“P”

“P5”

Back Pressure Pilot for HD Regulating Valves

Back Pressure

PILOTS

“

BP”Pilot

Pilot

• Max Inlet Pressure: 300 PSIG

• Back Pressure Range: 10-200 PSIG

• Minimum Inlet Pressures:

15 PSIG when used with standard main valve

5 PSIG when used with low pressure main valve

PRESSURE-ADJUSTING SPRING RANGES

Pressure Range Identifying Colors

10-25 PSIG yellow 20-100 PSIG blue 80-200 PSIG red

TYPICAL APPLICATIONS

The “BP” Back-Pressure Pilot used with the HD regulator, maintains upstream pressure in steam systems. These regulators are commonly used to supply flash steam to low pressure mains.

FEATURES

The “BP” Pilot can maintain upstream pressure to ±1 PSIG

•

Choices of three overlapping pressure ranges

•

Pressure adjusting spring can be changed with

•

regulator in line

Pilot is easily installed using only four bolts

•

Full port strainer and blowdown valve on pilot adapter for

•

ultimate protection from dirt and scale Solid floating diaphragm is more failure resistant

•

Watson McDaniel's pilots can be used with other

•

manufacturers’ regulators

MATERIALS

Pilot Body & Cover Ductile Iron Gasket Grafoil Diaphragm Phosphor Bronze Head & Seat Assembly Hardened SST (55 Rc)

HOW TO ORDER

“BP” BACK PRESSURE PILOT

Specify: • Reduced pressure range – Example: “BP” Pilot at 20-100 PSIG, blue

REGULA Specify: • HD regulator body

TOR BODY

• Regulator size or capacity

• End connections (threaded, 150/300# flanged)

REGULATING VALVES

PILOT-OPERATED

OPTIONS

Can be used with solenoid pilot for on/off control

•

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Steam Sensing Line

Connection

1/4” NPT

Units: inches

91/2

125

PILOTS

“

Temperature Pilot for HD Regulating Valves

”

Pilot

Temperature Pilot

• Max Inlet Pressure: 300 PSIG

• Temperature Control Range: 60-260 F

• Minimum Inlet Pressures:

15 PSIG when used with standard main valve

5 PSIG when low pressure temperature pilot is used

with low pressure main valve

Low Pressure Temperature Pilot must be used

PILOT-OPERATED

REGULATING VALVES

in conjunction with a low pressure main valve for applications where inlet steam pressure is less than 15 PSIG.

SPECIFY WHEN ORDERING.

TYPICAL APPLICATIONS

The “T” Temperature Pilot is used with the HD regulator to control temperature in various processes and systems. Some examples are:

• Oil heaters • Ovens

• Process heaters • Vats

• Dryers • Jacketed Kettles

FEATURES

Temperature adjustment made simple and easy by rotating

•

an adjustment knob to the desired temperature setting Thermostatic sensing bulb comes with an 8-ft. or 15-ft.

•

length capillary

Capillary is armor-protected to resist damage

•

Overheat protection bellows is incorporated into sensing

•

bulb; 200˚F overheat protection up to 350˚F Full port strainer and blowdown valve on pilot adapter for

•

ultimate protection from dirt and scale

OPTIONS

Temperature Pilot can be combined with Pressure and

•

Solenoid pilots Additional capillary lengths can be ordered in 5-ft. increments;

•

up to 25-ft. maximum length Wells* for isolating sensing bulb from process liquid are

•

available in 316 stainless steel or brass Extended length wells are available

•

316 Stainless Steel Sensing Bulb

•

Other options available; consult factory

•

* Thermowells:

Wells isolate sensing bulb from the process liquid and are available in Brass or Stainless Steel. When placed on the side of a tank or vessel, the sensing bulb can be removed without having to drain the process fluid.

TEMPERATURE-ADJUSTING RANGES

Temperature Ranges* Identifying Colors

60 - 120 °F (16 - 49 °C) yellow 100 - 160 °F (38 - 71 °C) black 120 - 180 °F (49 - 82 °C) blue 160 - 220 °F (71 - 104 °C) red 200 - 260°F (93 - 127 °C) green

* Other ranges available; consult factory.

MATERIALS

Body Ductile Iron/Cast Steel Head & Guide Stainless Steel Seat Stainless Steel Sensing Bulb:

T Copper Bulb TU Copper Bulb w/Brass Union Hub TUBW Copper Bulb w/Brass Well TUSW Copper Bulb w/Stainless Steel Well TBW Copper Bulb w/Brass Well & Grommet TSW Copper Bulb w/Stainless Steel Well & Grommet

Pressure & Temperature

Pilot

combination

Controls downstream

pressure and process

temperature, eliminating

the need for a separate

pressure regulator

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

126

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

PILOTS

Temperature Pilot for HD Regulating Valves

SENSING BULBS AVAILABLE

81/2

TUBW

TUSW

TBW

5/8

51/2

5/8

3/4” NPT

57/8

3/4

3/4” NPT

61/8

3/4

3/4” NPT

3/4

3/4” NPT

Units: inches

*Most common

“

T Plain copper bulb

TU Union connected copper bulb that can be

screwed into the side of tank * most common selection

TUBW Type TU bulb with a brass well. The well, which

isolates bulb from process fluid, can be placed in the side of a tank allowing the sensing bulb to be removed without having to drain the tank of liquid

TUSW Type TU bulb with a corrosion resistant stainless

steel well. The well, which isolates bulb from

process fluid, can be placed in the side of a tank allowing the sensing bulb to be removed without having to drain the tank of liquid

TBW Type T bulb with an extended length brass

well. The extended well allows deeper insertion

of sensing bulb into tanks.

TSW Type T bulb with extended length stainless

steel well. The extended well allows deeper

insertion of sensing bulb into tanks.

Other options available; consult factory.

”

Pilot

REGULATING VALVES

PILOT-OPERATED

TSW

3/4

3/4” NPT

Diagram below shows “T” Pilot TU Option for Bulb

63/4

See bulb

chart above

Units: inches

Union Nut

Union Hub 3/4” NPT

HOW TO ORDER

“T” TEMPERATURE PILOT

Specify:

• Temperature range from the chart or indicate the temperature of the process you wish to control

• The length of capillary required; 8-ft. is standard

• Bulb type needed: T, TU, TUBW, TUSW, TBW & TSW

Example: TU, 8 FT CAP, 60-120˚F, yellow

REGULA

Specify:

• HD regulator body

• Regulator size or capacity of steam required

• End connections (threaded, 150/300# flanged)

TOR BODY

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Low Pressure Temperature Pilot must be used in conjunction with a Low Pressure Main Valve for applications where inlet steam pressure is below 15 PSIG. SPECIFY WHEN ORDERING.

d Main Valve)

essure Main Valve with

Low Pressure Temperature Pilot)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

127

PILOTS

“

A”Pilot

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

Air Pilot for HD Regulating Valves

Air Pilot

• Max Inlet Pressure: 300 PSIG

• Reduced Outlet Pressure Range: 3-200 PSIG

• Minimum Inlet Pressures:

15 PSIG when used with standard main valve

5 PSIG when used with low pressure main valve

Note: Temperature Range: 0-350F when used with

REGULATING VALVES

PILOT-OPERATED

TYPICAL APPLICATIONS

The “A” Air Pilot is used with the HD Regulator to control steam pressure on steam mains and process equipment. The “A” Air Pilot can also be used in conjunction with the PTL or PTR pneumatic temperature controllers for controlling temperature in process applications. The principal advantage the “A” Air Pilot over standard spring loaded pilots is that pressure adjustments to the regulator can be made from a remote location. A regulator that is placed in a difficult to reach or inaccessible location can be adjusted by a remote control panel board placed in an accessible location.

HOW IT WORKS

When air pressure is applied to the upper chamber of the air pilot it exerts a downward force on the air pilot’s diaphragm. This force controls the outlet pressure of the steam through the regulating valve. The control process is similar to a spring loaded pressure pilot except that the air pressure takes the place of the spring. There are three separate models of air pilots that make up the complete range depending on the steam pressure that needs to be controlled and the control air pressure available. See Pressure Adjusting Ranges chart.

FEATURES

•

PTL & PTR temperature controllers

Pressure adjustments to the regulator can be done from a remote location using an air signal

Air-operated pilot ensures instant response and extremely accurate control

Full port strainer and blowdown valve on pilot adapter for

ultimate protection from dirt and scale

Controls pressure settings within ±1 PSIG

Controls Pressure & Temperature

MAXIMUM CONTROL AIR PRESSURE ON AIR PILOT IS 125 PSIG

PRESSURE ADJUSTING RANGES

Model

A1 3-125 PSIG 1:1 ratio of steam pressure

A4 3-200 PSIG 4:1 ratio of steam pressure

A6 20-200 PSIG 6:1 ratio of steam pressure

The larger Diaphragm area of the “A4” & “A6” Air Pilots allow the use of lower control air pressure to regulate higher pressure steam.

MATERIALS

Pilot Body & Cover Ductile Iron Gasket Grafoil Cover Screws Steel, GR5 Head & Seat Assembly Hardened SST (55 Rc)

Pressure

Ranges

Description

to control air pressure

Control Air Connection 1/4” NPT

DIMENSIONS –

Model A B

A1 5

A4 5

A6 5

128

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

inches

/4 5

/4 77/8

/4 91/2

Steam

Sensing Line

Connection

1/4” NPT

www.watsonmcdaniel.com

PILOTS

“

A”Pilot

Controls Pressure & Temperature

Air Pilot for HD Regulating Valves

REMOTE CONTROL PANEL BOARDS

Three different options of remote control panel boards can be used along with the "A" Air Pilots. Supply air is fed directly through the control panel board to the air pilot. You can choose one of the three options of control panel boards when using the air piloted regulators. Minimum 5 PSIG air supply pressure is required.

AIR SIGNAL

PL1

AIR SUPPLY

AIR SIGNAL

PL2

STEAM PRESSURE

AIR SUPPLY

AIR SIGNAL

PL1

The PL1 is made up of an air pressure regulator with adjustment knob and pressure gauge that measures the amount of air pressure going to the pilot (air signal). Steam pressure of the system is controlled by adjusting the air pressure regulator.

PL3

HOW TO ORDER

“A” AIR PILOT

Specify:

• Air Pilot A1, A4 or A6

• Remote Control Panel Board

PL1, PL2 or PL3

REGULA

Specify:

• HD regulator body

• Regulator size or capacity and pressure range

• End connections (threaded, 150/300# flanged)

TOR BODY

of steam required

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

REGULATING VALVES

PILOT-OPERATED

PL2

The PL2 is the same as the PL1 with the addition of an extra air pressure gauge for measuring the air supply pressure to the control panel board.

PL3

The PL3 is the same as the PL2 with the addition of a Steam Pressure Gauge for measuring steam pressure on the outlet side of the regulating valve.

Pressure Reducing Station Using HD Regulator with an Air Pilot

INLET

STEAM

AIR SIGNAL (control air)

BYPASS

AIR PILOT

REGULATOR

HDA

(REGULATOR

with AIR PILOT)

PL2

FLOW

CONTROL AIR PRESSURE RANGE

A-Pilot Control Pressure:

AIR SUPPLY

SENSING LINE

SLOPED DOWN

FROM PILOT

OUTLET

STEAM

3-125 PSIG (depending on pilot selected and

desired outlet pressure)

DESCRIPTION OF OPERATION

The “A” Air Pilot is being used in conjunction with the PL2 Control Panel Board to regulate steam pressure. A small air regulator on the panel board can be adjusted to control the air pressure to the pilot. One gauge on the panel board measures air line pressure to the panel board and the other gauge shows the air pressure being sent to the pilot. Steam pressure at the outlet of the regulator is controlled by the air pressure signal to the pilot. Depending on the air pilot model chosen (A1, A4, A6), there will be a 1:1, 4:1, or 6:1 ratio of outlet steam pressure to air pressure.

STEAM TRAP

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

129

PILOTS

PTL & PTR Controller

Pneumatic Temperature Controller (used with Air Pilot)

Pneumatic Temperature Controller

• Max Inlet Pressure: 300 PSIG

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

• Temperature Range: PTR: 0-300F

PTL: 50-350 F

• Minimum Inlet Pressures:

REGULATING VALVES

PILOT-OPERATED

Minimum Inlet Pressure:

15 PSIG when used with standard main valve

5 PSIG when used with low pressure main valve

TYPICAL APPLICATIONS

The PTL and PTR Pneumatic Temperature Controllers operate over a wider temperature

range than our standard “T” temperature pilot. These temperature controllers also react quicker to temperature change which make them an excellent choice for instantaneous hot water applications.

HOW IT WORKS

The PTL and PTR Pneumatic Temperature Controllers are used in conjunction with an “A” Air Pilot to control the operation of the HD

Regulator. The PTL uses a bimetallic element to sense temperature and the PTR uses a hydraulically filled bulb with a 4-ft. capillary to sense temperature. The air supply is connected to the inlet of the controller and the air output signal is fed directly to an Air Pilot, which controls the opening and closing of the steam regulating valve.

FEATURES

Accurate and rapid response to temperature

•

changes Covers control temperature range of 0-350 ˚F

•

MINIMUM OPERATING PRESSURES

15 PSIG (Standar

5 PSIG (Low Pr

d Main Valve)

essure Main Valve)

PTL

(mounts directly on

tank or vessel)

PTR

(mounts remotely

with 4-ft. Capillary)

Model PTL PTR Temperature Adjustment Range Maximum Air Supply Pressure Sensing Bulb Bi-Metallic Hydraulic Fill

Max. Pressure 250 Max. Temperature 400˚F 350˚F Material Copper Copper Optional Material Stainless Steel Stainless Steel Capillary Length N/A 4-ft.

50 - 350 ˚F 0 - 300 ˚F

35 PSIG 35 PSIG

PSIG

250

PSIG

HOW TO ORDER

PTL & PTR PNEUMATIC TEMPERATURE CONTROLLER Specify: • PTL or PTR controller model (air pilot required for operation)

AIR PILOT Specify: • A1, A4 or A6 Air Pilot model (refer to Air Pilot section)

REGULA Specify: • HD regulator body

TOR BODY

• Regulator size or capacity

• End connections (threaded, 150/300# flanged)

130

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

SERIES HDA-PTL

PNEUMATIC

TEMPERATURE

REGULATOR

STEAM INLET

BYPASS LINE

PILOTS

PTL & PTR Controller

Pneumatic Temperature Controller (used with Air Pilot)

DESCRIPTION OF OPERATION

The PTL Pneumatic Temperature Controller senses outlet water

temperature on a semiinstantaneous hot water heater. When the outlet water temperature falls below the set point, the PTL pneumatic temperature controller sends an air signal to the A1 Air Pilot which opens the regulator, allowing steam to heat the tank. When the water reaches the desired set temperature, the PTL pneumatic temperature controller shuts off the air signal to the A1 Air Pilot and the regulator closes, cutting off steam to the heater.

VACUUM

BREAKER

SEMI-INSTANTANEOUS

AIR VENT

HEATER

COLD WATER INLET

AIR SIGNAL LINE

HOT WATER OUTLET

AIR REGULATOR

AIR INLET

“PTL” CONTROLLER

REGULATING VALVES

PILOT-OPERATED

Model PTL (direct mounted)

11/

35/

3/4” NPT

Model PTR (remote mounted)

2-1/4

111/

STEAM

TRAP

WELL

111/

3/4” NPT

COPPER

WELL

111/

TEMPERATURE SET POINT ADJUSTMENT KNOB

7/8

1/8” NPT

27/

Units: inches

TEMPERATURE SET POINT ADJUSTMENT KNOB

13/32

23/

WITH RELAY

61/

STAINLESS STEEL

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

1/8” NPT

21/

131

PILOTS

“

TRP”Pilot

Temperature Pilot for HD Regulating Valves

Temperature Pilot

• Max Inlet Pressure: 300 PSIG

• Temperature Control Range: 20-250 F

• Min Inlet Pressures: 15 PSIG standard main valve

5 PSIG low pressure main valve

TYPICAL APPLICATIONS

PILOT-OPERATED

The “TRP” Temperature Pilot is used with the HD Regulator to control temperature in various processes and systems. Some examples are: Oil heaters, Ovens, Process Heaters, Vats, Dryers

REGULATING VALVES

and Jacketed Kettles.

FEATURES

Ductile Iron pilot body

•

Stainless steel valve and seat

•

Standard capillary is copper with 316 stainless steel

•

armor in 10 feet length

OPTIONS

Additional Capillary Length: Available up to 25-ft. in

•

5-ft. increments.

Special Materials: Sensing bulb, wells, and capillary are

•

available in special corrosion resistant materials.

- 316 stainless steel capillary

- 316 stainless steel armor with standard capillary

- Kynar-covered capillary

Finned Bulb: Special finned sensing bulb for improved

•

temperature sensitivity when controlling air temperature in heating ducts

Thermowell or Separable Socket: Available in

•

stainless steel or copper

Temperature Sensing Dial: Indicates temperature of

•

process being controlled

DIMENSIONS –

Std. Bulb Bulb Bulb Body Height

Range Length Diameter C

˚F A B w/Dial w/o Dial D E 40-65° 12 65-85° 12

85-110° 12 110-135° 12 135-160° 12 160-190° 12 190-210° 12 210-245° 12 245-275° 12 275-310° 12 305-365° 12 365-415° 12 415-435° 12

inches

Thermowell or

Separable Socket

/4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1 /4 1.0 111/4 1611/64 13 1.1

“TRP” TEMPERATURE PILOT

Specify:

• Temperature range from the chart or indicate the temperature

• The length of capillary required

REGULA

Specify:

• HD regulator body

• Regulator size or capacity of steam required

• End connections (threaded, 150/300# flanged)

The “TRP” will control lower temperatures than the standard “T” Pilot

MATERIALS

Pilot Body Ductile Iron Valve and Seat Stainless steel

Support Bracket Aluminum Bulb & Capillary Copper (optional stainless steel) All Other Parts Brass

HOW TO ORDER

of the process you wish to control

TOR BODY

4” minimum

length

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

THERMOWELL

1” NPT

Hub

1” NPT

132

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

PILOTS

Electric Pilot for On/Off Control of

Solenoid

Pilot

•For Electrical On-Off Control

of Regulating Valves

•Max Inlet Pressure: 250 PSIG

TYPICAL APPLICATIONS

Typically used for automatic operation, remote control, programmed cycling, sequential function interlocks with other equipment, and emergency shut-off in case of power failure.

HOW IT WORKS

The “S” Solenoid Pilot can be used in conjunction with Pressure, Temperature, or Air Pilots to electrically control on/off operation of the HD Regulator. When the solenoid pilot is used, the regulator can be turned on or off by electrically activating or de-activating the solenoid.

“

”

Regulating Valves

Pilot

STANDARD SOLENOID PILOTS AVAILABLE

Steam Inlet Pressure 0-180 PSIG

180-250 PSIG

NEMA 1 – Standard

NEMA Ratings NEMA 4 – Waterproof (optional)

NEMA 7 – Explosion-proof (optional)

Voltage 110 Volts AC (standard)

24 Volts AC (optional) 220 Volts AC (optional) 240 Volts AC (optional)

REGULATING VALVES

PILOT-OPERATED

Normally Closed (nc) – Standard

The normally closed Solenoid Pilot remains closed in the non-activated state. The regulating valve will remain closed until an electrical signal is sent to the solenoid pilot. This is known as a fail-safe condition.

Normally Open (no) – Optional

The normally opened Solenoid Pilot remains open in the non-activated state. The regulating valve will function normally unless an electrical signal is used to shut-off the solenoid pilot.

FEATURES

Available normally opened (no) or normally closed (nc)

•

Full-port strainer and blow-down valve on pilot adapter to

•

eliminate failure caused by contaminated steam systems

OPTIONS

Normally open solenoid

•

NEMA Ratings: NEMA 4 and NEMA 7

•

Voltage: 24 VAC, 220 VAC, 240 VAC

•

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

MATERIALS

Pilot Body & Cover Ductile Iron Gasket Grafoil Cover Screws Steel, GR5 Internals Stainless Steel

HOW TO ORDER

“S” SOLENOID PILOT

Specify: • Inlet Steam Pressure range:

0-180 PSIG or 180-250 PSIG

• NEMA rating: NEMA 1, NEMA 4 or NEMA 7 (if not specified NEMA 1 Standard will be supplied)

• Control Voltage: 24, 110, 220 or 240 VAC

REGULA Specify: • HD regulator body

TOR BODY

• Regulator size or capacity of steam required

• End connections (threaded, 150/300# flanged)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

133

PILOTS

“

DP”Pilot

Differential Pressure Pilot for HD Regulating Valves

Differential Pressure Pilot

• Max Inlet Pressure: 300 PSIG

• Reduced Outlet Pressure Range: 3-200 PSIG

• Min Inlet Pressures: 15 PSIG standard main valve

5 PSIG low pressure main valve

• DP-Pilot

PRESSURE-ADJUSTING SPRING RANGES

REGULATING VALVES

PILOT-OPERATED

“DP” Pressure Range Identifying Colors

TYPICAL APPLICATIONS

The “DP” Differential Pressure Pilot is used with the HD Regulator to maintain steam pressure at a balanced differential

pressure above another media source. This is typical on an oil burner where steam used for atomization is injected into the oil burner at a set pressure above the incoming oil supply. Therefore, as oil pressure fluctuates based on demand, the steam pressure will be maintained at a differential pressure above the oil pressure.

FEATURES

The “DP” Differential Pressure Pilot is used to maintain

•

downstream steam pressure to a set differential pressure above loading pressure

Accuracy to within ±2 PSIG

•

3 overlapping spring ranges to choose from

•

Pilot is installed using only four bolts

•

Full port strainer and blowdown valve on pilot adapter for

•

ultimate protection from dirt and scale

Solid floating diaphragm

•

Watson McDaniel's pilots can be used with other

•

manufacturers’ regulators

2 PSIG accuracy

3-25 PSIG yellow 20-100 PSIG blue 80-200 PSIG red

MATERIALS

Pilot Body & Cover Ductile Iron & Cast Steel Gasket Grafoil Diaphragm Phosphor Bronze Head & Seat Assembly Hardened SST (55 Rc)

HOW TO ORDER

“DP” DIFFERENTIAL PRESSURE PILOT

Specify: • Reduced pressure range – Example: “DP” Pilot at 3-25 PSIG, yellow

REGULA Specify: • HD regulator body

TOR BODY

• Regulator size or capacity

• End connections (threaded, 150/300# flanged)

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

OPTIONS

Solenoid pilot can be added for remote on/off control of

•

regulator

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

134

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

9.27

Units: inches

www.watsonmcdaniel.com

5.00

PILOTS

Over Pressure Protection Methods

Using “P” and “BP” Pilots

Back Pressure Regulators for Boiler Overload Protection

In steam systems with several applications of varying importance, a back pressure regulator may be used to prevent overloading of the boiler by isolating non-essential loads from critical processes in the event steam demand exceeds boiler output. When steam demand is greater than the capacity the boiler can generate, pressure in the boiler will drop, possibly upsetting the control balance in the boiler resulting in the generation of wet steam. Using back pressure regulators on the non-essential application supply lines allows isolation of these applications at times of peak demand by shutting off steam flow to areas deemed non-essential. This ensures that boiler demand is not exceeded and steam flow is maintained to critical processes until demand subsides and the boiler is able to catch up.

STEAM TO ESSENTIAL SERVICES

SAFETY

VALVE

DRIP PAN ELBOW

REGULATING VALVES

PILOT-OPERATED

STEAM TO NON-ESSENTIAL SERVICES

BOILER STEAM SUPPLY

PILOT-OPERATED BACK PRESSURE REGULATOR

HEADER

PILOT-OPERATED PRESSURE REDUCING AND BACK PRESSURE

REGULATOR

FTT

TRAP

STEAM TO NON-ESSENTIAL SERVICES

Pressure Override Protection of Regulator Supply Lines

On multi-stage pressure reducing applications where a rise in control pressure due to failure of the final supply regulator could result in equipment damage and/or personnel injury, a secondary pressure pilot may be added to provide override protection of a steam supply line. During normal operation, the main pressure pilot on the 1st stage regulator provides intermediate pressure control while the additional “monitor” pilot senses final control pressure and remains open due to a slightly higher setting than the final control pressure setting. Should the 2nd stage regulator fail for any reason, increasing supply pressure will begin to close the monitor pressure pilot of the 1st stage regulator, thus overriding the main control pilot preventing final supply pressure from increasing. This overpressure protection can similarly be offered on single-stage reducing valves by protecting against failure of the main control pilot.

MAIN PRESSURE PILOT

INLET

1st Stage HD REGULATOR

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

PRESSURE

PILOT

(Monitor)

PRESSURE PILOT

2nd Stage HD REGULATOR

OUTLET

135

REGULATOR & PILOT

HDP

Pilot-Operated Pressure Regulating Valve

HD Regulating Valve

with “P”Pressure Pilot

• Max Inlet Pressure: 300 PSIG

• Reduced Outlet Pressure Range: 3-200 PSIG

• Min Inlet Pressures:

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

PILOT-OPERATED

REGULATING VALVES

15 PSIG

standard main valve

5 PSIG low pressure main valve

TYPICAL APPLICATIONS

The HD Regulator with the “P” Pressure Pilot is used for reducing steam pressure in piping mains and process applications. Pilot-operated regulators will maintain constant downstream pressure even when the inlet pressure to the regulator fluctuates or steam usage varies.

FEATURES

The “P” Pilot can maintain downstream pressure

•

to ±1 PSIG

Optional “P5” pilot can maintain pressure

•

to ±0.5 PSIG

Choices of three overlapping pressure ranges

•

Pressure adjusting spring can be changed with

•

regulator in line Pilot is easily installed using only four bolts

•

Full port strainer and blowdown valve on pilot

•

adapter for ultimate protection from dirt and scale

Watson McDaniel’s pilots can be used with other

•

manufacturers’ regulators

OPTIONS

Pressure and temperature pilots can be combined

•

on the same regulator

Solenoid pilot can be added for electrical on/off

•

control of the regulator Can be used with solenoid and temperature pilots

•

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

PRESSURE-ADJUSTING SPRING RANGES “P”

Pressure Ranges Identifying Colors

3-25 PSIG yellow 20-100 PSIG blue 80-200 PSIG red

PRESSURE-ADJUSTING SPRING RANGES “P5”

1-10 PSIG yellow

10-25 PSIG blue

MATERIALS

Body Ductile Iron Cover Ductile Iron Gasket Grafoil Cover Screws Steel Pilot Adapter Ductile Iron/Cast Steel Screen Stainless Steel Tubing Copper Valve Seat Hardened SST (55 Rc) Valve Disc Hardened SST (55 Rc) Diaphragm Phosphor Bronze

136

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

REGULATOR & PILOT

HDP

Pilot-Operated Pressure Regulating Valve

DIMENSIONS HD-Series –

inches / pounds

Face-To-Face Weight (lbs) Size NPT 150# 300# B C* D E** NPT FLG 1/2” 4 3/4” 4

1” 5 11/4” 6 11/2” 7

2” 7 21/2” 9

10 9 11

3” 10 10

4” 11

6” 15

For P5 Pilot:

* For sizes 1/2” to 11/2” add 21/2” to “C” dimension;

For sizes 2” to 6” add 5” to “C” dimension.

** Add 11/2” to “E” dimension for all sizes.

/8 /8

16 14

11 11 11 11 11 11

11 11 12

6 6

8 10 11 13 14 19

18 18 23 35 43 43 60 65 85

/2 /4

105 145 235 470

Standard P-Pilot = 5”

P5-Pilot = 8”

HOW TO ORDER

P or P5 PRESSURE PILOT

Specify: • Reduced pressure range (P5 Pilot requires a special adapter block on 3” & 4” valves)

REGULATOR BODY

Specify: • HD regulator body

• Regulator size or capacity and pressures of steam required

• End connections (threaded, 150/300# flanged)

REGULATING VALVES

PILOT-OPERATED

Adjusting Spring

Pilot

Diaphragm

Pilot Valve

Main Valve

Inlet

Pressure

Adjusting Screw

PRESSURE PILOT

Downstream Pressure Sensing LIne

Bleed Orifice

HOW IT WORKS

The purpose of the pressure pilot is to control the operation of the pressure regulating valve. A pressure sensing line connects the pressure pilot to the downstream side of the regulator. The pressure in the sensing line is directed under the diaphragm in the pressure pilot. When the pressure in the system

Control Pressure Line

reaches the adjusting spring set point it pushes the diaphragm upwards against the force of the adjusting spring and closes the pilot valve. When the pilot valve is shut, steam can no longer pass through to the

Outlet

underside of the regulator diaphragm and the main valve closes. When the steam pressure falls below its set point, the pilot valve opens allowing steam

Diaphragm Orifice with Clean-out Wire

Main Valve Diaphragm

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

to lift the main valve diaphragm which opens up the regulating valve.

137

REGULATOR & PILOT

HDT

Pilot-Operated Temperature Regulating Valve

HD Regulating Valve with

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

“T”

Temperature Pilot

• Inlet Pressure Max: 300 PSIG

• Temperature Control Range: 60–260 F

• Min Inlet Pressures:

PILOT-OPERATED

REGULATING VALVES

15 PSIG

5 PSIG

Low Pressure Temperature Pilot must be used in conjunction with a low pressure main valve for applications where inlet steam pressure is less than 15 PSIG.

TYPICAL APPLICATIONS

The HD Regulator with the “T” Temperature Pilot is used for controlling temperature in various processes and systems, such as Oil Heaters, Ovens, Process Heaters, Vats, Dryers and Jacketed Kettles.

FEATURES

Temperature adjustment made simple and easy

•

by rotating an adjustment knob to the desired temperature setting

Thermostatic sensing bulb comes with 8-ft. or

•

15-ft. capillary; optional lengths up

Capillary is armor-protected to resist damage

•

Optional stainless steel sensing bulb and capillary

•

Overheat protection bellows is incorporated into

•

sensing bulb; 200˚F overheat protection up to 350˚F Can be used with Pressure Pilot for simultaneous

•

control of pressure and temperature

Hardened stainless steel trim on regulator for

•

extended service life

Full port strainer and blowdown valve on pilot

•

adapter for ultimate protection from dirt and scale

OPTIONS

Temperature Pilot can be combined with Pressure

•

and Solenoid pilots

Additional capillary lengths can be ordered in 5-ft.

•

increments; up to 25-ft. maximum length Wells* are available in 316 stainless steel

•

Longer wells can be supplied

•

Low pressure (under 15 PSIG) temperature pilot

•

Consult factory for other options

•

standard main valve with standard temperature pilot low pressure main valve with low pressure temp. pilot

SPECIFY WHEN ORDERING.

to 25-ft. max

TEMPERATURE-ADJUSTING RANGES

Temperature Ranges * Identifying Colors

60 - 120 °F (16 - 49 °C) yellow 100 - 160 °F (38 - 71 °C) black 120 - 180 °F (49 - 82 °C) blue 160 - 220 °F (71 - 104 °C) red 200 - 260 °F (93 - 127 °C) green

* Other ranges available; consult Factory.

MATERIALS

Body Ductile Iron Cover Ductile Iron Gasket Grafoil Cover Screws Steel Pilot Adapter Ductile Iron/Cast Steel Screen Stainless Steel Tubing Copper Valve Seat Hardened SST (55 Rc) Valve Disc Hardened SST (55 Rc) Diaphragm Phosphor Bronze

* Thermowells:

138

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

REGULATOR & PILOT

HDT

Pilot-Operated Temperature Regulating Valve

DIMENSIONS HD-Series –

inches / pounds

Face-To-Face Weight (lbs) Size NPT 150# 300# B C D E NPT FLG 1/2” 4 3/4” 4

1” 5 11/4” 6 11/2” 7

2” 7 21/2” 9

3” 10 10

4” 11

6” 15

10 9 9

16 14

6 6

18 18 23 35 43 43 60 65 85

HOW TO ORDER

“T” TEMPERATURE PILOT

Specify:

• Temperature range from the chart or indicate the set temperature of the process you wish to control

• The length of capillary required. 8-ft. or 15-ft. standard; Maximum length: 25-ft. in 5-ft. increments

• Bulb type needed: T, TU, TUBW, TUSW, TBW & TSW

REGULA

TOR BODY

Specify:

• HD regulator body

• Regulator size or capacity

• End connections (threaded, 150/300# flanged)

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Low Pressure Temperature Pilot must be used in conjunction with a

Low Pressure Main Valve for applications where inlet steam pressure is less than 15 PSIG. SPECIFY WHEN ORDERING.

d Main Valve with

Standard Temperature Pilot)

essure Main Valve with

Low Pressure Temperature Pilot)

105 145 235 470

HOW IT WORKS

The temperature pilot controls the operation of the temperature regulating valve. The temperature sensing bulb, which is filled with a temperature sensitive liquid, is placed in the process fluid that is being heated. When the temperature of the process fluid reaches its set point, the bellows expands and closes off the pilot valve. When the pilot valve is shut, steam can no longer pass thru to the underside of the regulator diaphragm, and the main valve closes. When the process fluid cools below the set temperature, the main valve reopens.

Temperature

Adjustment

Knob

Bellows

Pilot Valve

Inlet

Main Valve

TEMPERATURE PILOT

Temperature Sensing Bulb

Control Pressure Line

Bleed Orifice

Outlet

Diaphragm Orifice with Clean-out Wire

REGULATING VALVES

PILOT-OPERATED

Main Valve Diaphragm

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

139

REGULATOR & PILOT

HDA

Air-Operated Pilot Regulating Valve

HD Regulating Valve

with “A”Air Pilot

• Max Inlet Pressure: 300 PSIG

• Reduced Outlet Pressure Range: 3-200 PSIG

• Min Inlet Pressures:

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

PILOT-OPERATED

REGULATING VALVES

15 PSIG

standard main valve

5 PSIG low pressure main valve

Note: Temperature Range: 0-350F when used with

PTL & PTR temperature controllers

TYPICAL APPLICATIONS

The HD Regulator with the “A” Air Pilot is used for reducing steam pressure on steam mains and process equipment. The “A” Air Pilot can also be used in conjunction with the PTL and PTR Pneumatic Temperature Controllers for controlling temperature in process applications. The principal advantage of the “A” Air Pilot over standard spring-loaded pilots is that pressure adjustments to the regulator can be made from a remote location. A regulator placed in a difficult to reach or inaccessible location can be adjusted by a remote control panel board placed in an accessible location.

FEATURES

Air Pilot can be used with PTL or PTR Pneumatic

•

Temperature Controller Pressure adjustments of the regulator can be done

•

from a remote location Air-operated pilot insures instant response and

•

very accurate control

Full port strainer and blowdown valve on pilot

•

adapter for ultimate protection from dirt and scale

Controls pressure settings within ±1 PSIG

•

OPTIONS

Solenoid Pilot (S-Pilot) can be added for

•

Electrical On/Off Operation of the regulator

MAXIMUM CONTROL AIR PRESSURE ON AIR PILOT IS 125 PSIG

PRESSURE-ADJUSTING RANGES

Model Pressure Description

A1 3-125 PSIG 1:1 ratio of steam pressure to control air pressure

A4 3-200 PSIG 4:1 ratio of steam pressure to control air pressure

A6 20-200 PSIG 6:1 ratio of steam pressure to control air pressure

Ranges

Example:

With the A1 air pilot, 10 PSIG of air pressure maintains 10 PSIG of steam pressure

Example:

With the A4 air pilot, 10 PSIG of air pressure maintains 40 PSIG of steam pressure

Example:

With the A6 air pilot, 10 PSIG of air pressure maintains 60 PSIG of steam pressure

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

d Main Valve)

essure Main Valve)

d Main Valve)

essure Main Valve)

140

CONTROL AIR PRESSURE RANGE

A-Pilot Control Pressure:

3-125 PSIG (depending on pilot selected and

desired outlet pressure)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

REGULATOR & PILOT

HDA

Air-Operated Pilot Regulating Valve

DIMENSIONS HD-Series –

inches / pounds

Face-To-Face Weight (lbs) Size NPT 150# 300# B C* D E** NPT FLG 1/2” 4 3/4” 4

1” 5 11/4” 6 11/2” 7

2” 7 21/2” 9

10 9 7

3” 10 10

4” 11

6” 15

* Add 21/2” to “C” dimension for A4 or A6 Air Pilots on 2” thru 4” valves.

** Add 1

/2” to “E” dimension for A4, and 21/4”” for A6.

/8 /8

16 14

18 18 23 35 43 43 60 65 85

MATERIALS

Body Ductile Iron Cover Ductile Iron Gasket Grafoil Cover Screws Steel Pilot Adapter Ductile Iron/Cast Steel Screen Stainless Steel Tubing Copper Valve Seat Hardened SST (55 Rc) Valve Disc Hardened SST (55 Rc) Diaphragm Phosphor Bronze

105 145 235 470

HOW IT WORKS

When air pressure is applied to the upper chamber of the air pilot it exerts a downward force on the air pilot’s diaphragm. The lower chamber of the air pilot is connected to the outlet side of the regulator using a sensing line. The purpose of the sensing line is to sense the pressure on the outlet side of the regulator. When the intended set pressure is reached, the pilot valve closes which then closes off the flow path of steam to the underside of the diaphragm chamber in the regulator body. The regulator modulates maintaining the desired downstream pressure regardless of the amount of steam being used.

REGULATING VALVES

PILOT-OPERATED

HOW TO ORDER

“A” AIR PILOT

Specify: • Air Pilot A1, A4 or A6

• Remote Control Panel Board: PL1, PL2 or PL3

REGULA Specify: • HD regulator body

TOR BODY

• Regulator size or capacity and pressures of steam required

• End connections (threaded, 150/300# flanged)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Air Control

Line

Pilot

Diaphragm

Pilot Valve

Main Valve

Inlet

AIR PILOT

Downstream Pressure Sensing LIne

Control Pressure Line

Bleed Orifice

Outlet

Diaphragm Orifice with Clean-out Wire

Main Valve Diaphragm

141

REGULATOR & PILOT

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

HDPT

Pilot-Operated Pressure & Temperature Regulating Valve

HD Regulating Valve

with

“T”

Temperature Pilots

“P”

Pressure &

• Max Inlet Pressure: 300 PSIG

• Reduced Outlet Pressure Range: 3-200 PSIG

REGULATING VALVES

PILOT-OPERATED

• Temperature Control Range: 60-260 F

• Min Inlet Pressures:

15 PSIG

standard main valve with standard temperature pilot

5 PSIG low pressure main valve with low pressure temp. pilot

Low Pressure Temperature Pilot must be used in conjunction with a low pressure main valve for applications where inlet steam pressure is less than 15 PSIG.

SPECIFY WHEN ORDERING

TYPICAL APPLICATIONS

The HD Regulator with both the “P” Pressure Pilot and “T” Temperature Pilot is used to simultaneously control

both pressure and temperature in process applications.

Using both the temperature and pressure pilot on the same regulator eliminates the need for two separate regulators to control temperature and pressure.

FEATURES

Pressure and temperature pilot combination

•

eliminates the need for two separate regulators

Choice of three overlapping pressure ranges

•

Pilot is installed using only four bolts

•

Full port strainer and blowdown valve on pilot

•

adapter for ultimate protection from dirt and scale

Watson McDaniel's pilots can be used with other

•

manufacturers’ valves

OPTIONS

Solenoid Pilot can be added for electrical On/Off

•

control of the regulator

* Other ranges available; consult Factory.

PRESSURE-ADJUSTING SPRING RANGES

TEMPERATURE-ADJUSTING RANGES

Temperature Ranges * Identifying Colors

60 - 120 °F (16 - 49 °C) yellow 100 - 160 °F (38 - 71 °C) black 120 - 180 °F (49 - 82 °C) blue

160 - 220 °F (71 - 104 °C) red 200 - 260 °F (93 - 127 °C) green

Pressure Ranges Identifying Colors

3-25 PSIG yellow 20-100 PSIG blue 80-200 PSIG red

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (Standar

5 PSIG (Low Pr

Minimum Differential Pressure:

10 PSI (Standar

3 PSI (Low Pr

d Main Valve with

Standard Temperature Pilot)

essure Main Valve with

Low Pressure Temperature Pilot)

d Main Valve)

essure Main Valve)

142

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

REGULATOR & PILOT

HDPT

Pilot-Operated Pressure & Temperature Regulating Valve

DIMENSIONS HD-Series –

inches / pounds

Face-To-Face Weight (lbs) Size NPT 150# 300# B C D E NPT FLG 1/2” 4 3/4” 4

1” 5 11/4” 6 11/2” 7

2” 7 21/2” 9

3” 10 10

4” 11

6” 15

10 9 14

16 14

15 19

710

12 145

13 235

18 18 23 35 43 43 60 65 85

MATERIALS

Body Ductile Iron Cover Ductile Iron Gasket Grafoil Cover Screws Steel Pilot Adapter Ductile Iron/Cast Steel Screen Stainless Steel Tubing Copper Valve Seat Hardened SST (55 Rc) Valve Disc Hardened SST (55 Rc) Diaphragm Phosphor Bronze

HOW TO ORDER

“T” TEMPERATURE PILOT

Specify: • Temperature range from the chart or indicate the set

temperature of the process you wish to control

• The length of capillary required; 8-ft. is standard

• Bulb type needed: T, TU, TUBW, TUSW, TBW & TSW

“P” PRESSURE PILOT

Specify: • Pressure range from the chart

105

470

HOW IT WORKS

A pressure pilot and temperature pilot can be used together to control the operation of the regulator. The pressure pilot limits the outlet pressure of the regulator when the temperature pilot calls for steam. The temperature pilot senses the temperature of the process that is being controlled and opens or closes the regulator accordingly. Using a pressuretemperature pilot combination eliminates having to use two separate valves.

Temperature Sensing Bulb

TEMPERATURE

PILOT

Temperature

Pilot Valve

Inlet

Temperature Adjustment Knob

PRESSURE

PILOT

Pressure Adjusting Screw

Pressure Pilot Diaphragm

Pilot Valve

Bleed Orifice

Outlet

REGULATING VALVES

PILOT-OPERATED

REGULA

TOR BODY

Specify: • HD regulator body

• Regulator size or capacity and pressures of steam required

• End connections (threaded, 150/300# flanged)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Main Valve

Main Valve Diaphragm

Control Pressure Line

Diaphragm Orifice with Clean-out Wire

143

REGULATORS

HSP Series

Pilot-Operated Pressure Regulating Valve

Model HSP Series Sizes 1”, 11/2”, 2”, 3”, 4” Connections 150#/300# Flange Body Material Cast Steel PMO Max. Operating Pressure 450 PSIG

TMO Max. Operating Temperature 650˚F

PMA Max. Allowable Pressure 550 PSIG @ 650˚F

TMA

PILOT-OPERATED

REGULATING VALVES

Max. Allowable Temperature 650˚F @ 550 PSIG

PRESSURE-ADJUSTING SPRING RANGES

Pressure Ranges Identifying Colors

10-40 PSIG yellow 25-100 PSIG blue 75-300 PSIG red

CAST STEEL

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

TYPICAL APPLICATIONS

The HSP-Series Main Valve with integral Pressure Pilot reduces steam pressure in steam system piping mains and process applications. This pilot-operated regulator is specifically used in applications where the properties and benefits of Cast Steel are desired and/or specified. Using steel as the material of construction for the main valve body extends the temperature ranges of the regulator. A unique two-bolt pilot adapter design and field-reversible tubing offer even greater versatility to this type of regulator, further reducing maintenance downtime. These valves share the same design and proven reliability of the Watson McDaniel HD-Series Regulators, providing extremely accurate control of downstream system pressure even when inlet pressure to the regulator fluctuates or steam usage varies.

FEATURES

Cast Steel body for higher pressure and temperature ratings

•

New, convenient bolt-on pilot design simplifies installation

•

New diaphragm design improves performance and

•

extends life

Hardened stainless steel trim for extended life

•

Optional Stellite trim available

•

Full port strainer and blowdown valve on pilot adapter

•

for ultimate protection from dirt and scale Maintains downstream pressure+1.0 PSIG

•

Choice of three overlapping spring ranges

•

Pre-mounted pilot & tubing simplifies installation

•

LOTS

CONTROL PILOTS

Pilot Mounting

Standard pilot mounting is on the right side of the regulator when looking into the outlet port (see diagram on opposite page which is right mounted). For opposite mounting, please specify when ordering. Pilot mounting on HSP regulators are field reversible.

Pressure

The spring-adjusted Pilot is used for general purpose pressure reducing applications.

MATERIALS

Body ASTM A-216 GR WCB Cover ASTM A-216 GR WCB Diaphragm Cover ASTM A-216 GR WCB Pilot ASTM A-216 GR WCB Gaskets Garlock 3400/grafoil SLS Seat 420F SS

(optional Stellite seat, consult factory)

Disc 420F SS Diaphragm 300 SS Mfg. Bolts SA-193 GR B7 Spring 302 SS Stem 416 SS

144

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

REGULATORS

HSP Series CAST STEEL

Pilot-Operated Pressure Regulating Valve

DIMENSIONS HSP Series –

(A) Face-To-Face Weight (lbs)

Size NPT 150# 300# B C D NPT 150# 300#

1” x5

11/2” x 6

2” x 8 3” x1010 4” x11

inches / pounds

7 x 40 45

4 5 6 7

x 55 60 x 75 85 x 130 145 x 215 235

MINIMUM OPERATING PRESSURES

Minimum Inlet Pressure:

15 PSIG (standard Main Valve) 5 PSIG (low pressure Main Valve)

Minimum Differential Pressure:

10 PSIG (standard Main Valve) 3 PSIG (low pressure Main Valve)

HOW TO ORDER

REGULATOR BODY

Specify: • HSP regulator body

• Regulator size or capacity of steam required

• End connections (150#/300# flanged)

PILOT REQUIRED TO OPERA

• Pressure Pilot (Specify Range)

Specify: 10-40 PSIG - Yellow

25-100 PSIG - Blue 75-300 PSIG - Red

Example: 2” HSP, 150# FLG, 10-40 PSIG (yellow)

TE THIS VALVE

REGULATING VALVES

PILOT-OPERATED

FLOW

OUT

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Standard pilot mounting is on the right side of the regulator when looking into the outlet port (as shown). Pilot mounting on HD regulators are field reversible.

145

NOISE ATTENUATORS

Series-A

for Pressure Regulating Valves

Noise Attenuation Equipment is used to reduce unwanted or excessive noise that

Series-A ORIFICE PLATE

Noise Reduction Capability: 5-10 dBA

REGULATING VALVES

PILOT-OPERATED

ORIFICE PLATE

commonly occurs in pressure reducing stations.

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

HOW IT WORKS

The Series-A Orifice Plate with its drilled orifice pattern is installed after the pressure regulating valve to smooth out turbulence caused by the pressure drop across the regulator. Noise reduction levels of 5-10 dBA can typically be achieved.

INSTALLATION

The Series-A Orifice Plate is installed between ANSI flanges immediately after the regulator. If the regulator is a flanged unit, the orifice plate is placed at the flange outlet connection.

Series-A Orifice Plate

Series-A Typical Hook-up

Sensing Line

For Regulator

FLOW

Pressure

Reducing

Valve

SERIES-A

ORIFICE

PLATE

Series A Dimensions

Orifice Plate installed

between flanges

FLOW

.75

Series-A DIMENSION (A) –

Pipe Size 125# Flange 250# Flange

2” 64

21/2” 74

3” 71/2 511/16 4” 96 6” 11 911/16

Note: Other sizes available. Consult factory.

inches

/16

A DIa.

146

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

NOISE ATTENUATORS

ACOUSTIC SILENCER

Noise Attenuation Equipment is used to reduce unwanted or excessive noise that

commonly occurs in pressure reducing stations.

Series-H ACOUSTIC SILENCER

Noise Reduction Capability: 20-30 dBA

Series-H Acoustic Silencer

Series-H

for Pressure Regulating Valves

Series-H Dimensions

BA1

Inlet

REGULATING VALVES

PILOT-OPERATED

HOW IT WORKS

The Series-H Acoustic Silencer incorporates a Dual Diffuser tube design. The inner tube has a drilled orifice pattern and the outer tube contains an integral layer of sound absorbing insulation. Noise reduction levels of 20-30 dBA can typically be achieved.

INSTALLATION

The Series-H Diffuser Tube should be installed immediately downstream of the regulator, as shown below.

Series-H Typical Hook-up

Gate

Valve

Separator

FLOW

To Trap

Strainer

PRV

Series-H DIMENSIONS –

Model A1 A B C

LCV-8 4 8 14 57 145 LCV-10 6 10 16 71 210 LCV-12 6 12 18 81 295

Note: Other sizes available. Consult factory.

Pressure

Sensing Line

SERIES-H

ACOUSTIC

SILENCER

Gate

Valve

inches

Weight

(lbs)

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

147

NOISE ATTENUATORS

Series-S

for Pressure Regulating Valves

Series-S ACOUSTIC DIFFUSER

Noise Reduction Capability: 10-15 dBA

REGULATING VALVES

PILOT-OPERATED

Series-S Acoustic Diffuser

ACOUSTIC DIFFUSER

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

HOW IT WORKS

The Series-S Acoustic Diffuser incorporates a single tube with a drilled orifice pattern which reduces downstream turbulence. Noise reduction levels of 10-15 dBA can typically be achieved.

INSTALLATION

The Series-S Diffuser Tube should be installed immediately downstream of the regulator, as shown below.

Series-S Typical Hook-up

Gate

Valve

Separator

FLOW

Strainer

PRV

ACOUSTIC

To Trap

Pressure

Sensing Line

SERIES-S

DIFFUSER

Gate Valve

Model Selection Chart for Series-S Diffuser

Steam Capacity (lbs/hr)

1000 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 1500 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 S-3 2000 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 S-4 3000 S-4 S-4 S-4 S-4 S-4 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 4000 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 S-5 6000 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 S-6 8000 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8

10000 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8 S-8

Note: For higher capacity models, S-10 & S-12, consult factory.

15 20 25 30 40 50 60 75 90 100 125 150 175 200 225 250

Valve Inlet Pressure

(PSIG)

148

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

NOISE ATTENUATORS

ACOUSTIC DIFFUSER

for Pressure Regulating Valves

Series-S Dimensions –

Inlet (A) Outlet NPT x Weld Dimensions

Model

S-3

S-4 11/4 4 61/2 131/2 41/2

S-5

S-6 268145

S-8 21/2 21/2 8 10 17 85/8

S-10 3 3 12 12 14 123/4

S-12

NPT FLG FLG/BW B C D

3/4 2 5

125

3/4 4 61/2 131/2 41/2

146

11/2 4 61/2 131/2 41/2

246

3/4 4 61/2 161/2 41/2

146

/4 46

11/2 46

246 21/2 21/2 46 11/4 68145 11/2 68145

21/2 21/2 68145

3368145 11/2 8 10 17 85/8

2 8 10 17 85/8

3 3 8 10 17 85/8

4 4 8 10 17 85/8

212121412 21/2 21/2 12 12 14 123/4

4 4 12 12 14 123/4

6 6 12 12 14 123/4 21/2 21/2 12 12 21 123/4

3 3 12 12 21 12

4 4 12 12 21 123/4

6 6 12 12 21 123/4

inches

/2 131/2 23/8

/2 131/2 41/2

/2 161/2 41/2

Series-S

NPT x Weld

NPT

Flanged x Weld

Flanged

NPT x Flanged

NPT

PILOT-OPERATED

REGULATING VALVES

Notes: 1)150# & 300# flanges available.

2) Other sizes available; consult factory.

428 Jones Boulevard • Limerick Airport Business Center • Pottstown PA • 19464 • Tel: 610-495-5131 • Fax: 610-495-5134

www.watsonmcdaniel.com

Flanged x Flanged

Flanged

149

REGULATORS

HD & HSP Series

Watson McDaniel reserves the

right to change the designs

and/or materials of its

products without notice.

Full Port

CAPACITIES –

Inlet

Pressure

(PSIG)

REGULATING VALVES

PILOT-OPERATED

100 60 700 1200 2000 2700 3800 6700 10000 12900 20500 43800

125 75 825 1475 2400 3300 4600 8200 12200 15700 25000 53500

150 100 925 1600 2700 3600 5100 9000 13400 17400 27700 59000

175 125 1000 1800 2900 4000 5600 9900 14700 18900 30100 64300

200 125 1300 2300 3700 5100 7100 12600 18700 24100 38400 81900

225 150 1450 2500 4200 5700 8000 14100 21000 27200 43300 92300

250 150 1650 2900 4700 6500 9100 16000 23800 30800 49000 104600

300 175 1945 3425 5625 7670 10740 18925 28130 36320 57800 123270

Note: For inlet pressures in shaded area, use low pressure main valve and low pressure temperature pilot.

Regulating Valves – Capacities

Steam (lbs/hr)

Outlet

Pressure

1/2" 3/4" 1" 1

/4"11/2"2" 2

/2"3" 4" 6"

(PSIG)

CvFactors

5 0 85 150 250 350 500 800 1200 1600 2600 5500

2 80 140 230 310 440 770 1100 1500 2400 5100 0 115 200 325 450 600 1100 1650 2100 3600 7800

7 2 105 180 300 400 575 1000 1500 2000 3100 6700

3 90 160 275 375 525 900 1300 1800 2800 6000 0 150 260 425 575 850 1500 2200 2800 4600 9900

10 2 140 240 400 550 800 1400 2100 2700 4300 9100

5 100 175 300 400 600 1000 1600 2000 3200 6900 0 160 280 475 600 900 1600 2400 3100 4900 10300

12 4 140 240 400 550 800 1400 2100 2700 4300 9100

7 125 200 375 500 700 1200 1900 2400 3800 8200

0-3 190 325 550 750 1000 1800 2700 3500 5600 12000

15 5 175 300 500 700 900 1700 2500 3200 5200 11100

8 140 250 400 500 800 1300 2000 2600 4200 8900

0-5 210 375 625 850 1200 2100 3100 4000 6400 13700

20 10 190 325 550 750 1000 1800 2700 3500 5600 12000

12 170 300 500 675 950 1600 2500 3200 5100 10800

0-7 250 450 775 1050 1500 2600 3800 5000 7900 16900

25 10 225 425 700 975 1300 2400 3600 4600 7300 15600

15 200 350 600 800 1100 2000 3000 3900 6200 13200

0-12 275 500 800 1100 1500 2700 4100 5200 8300 17800

30 15 250 450 750 1000 1400 2500 3800 4900 7800 16600

20 225 375 650 850 1200 2100 3200 4100 6500 14000

0-18 350 600 1000 1350 1900 3300 5000 6400 10300 21900

40 25 300 500 850 1150 1600 2800 4200 5400 8700 18500

30 250 425 700 1000 1400 2500 3700 4700 7600 16100

0-20 400 700 1200 1650 2300 4100 6000 7800 12400 26500

50 30 350 650 1100 1500 2000 3600 5400 6900 11000 23600

40 275 500 800 1100 1500 2700 4100 5200 8300 17800

0-30 475 850 1350 1900 2600 4600 6900 8900 14200 30300

60 35 425 775 1250 1700 2400 4300 6400 8200 13100 27900

50 300 525 850 1200 1600 2900 4300 5600 8900 19000

0-35 575 1000 1650 2300 3200 5600 8300 10800 17200 36600

75 50 475 825 1350 1900 2600 4600 6900 8900 14100 30100

60 400 700 1150 1600 2200 3900 5800 7400 11800 25200

0-45 675 1200 1950 2700 3700 6600 9800 12700 20200 43100

90 60 575 1000 1700 2300 3200 5700 8500 10900 17400 37100

75 425 750 1200 1700 2300 4100 6100 7900 12600 27000

0-50 750 1300 2100 3000 4100 7300 10800 14000 22200 47500

80 500 875 1400 1900 2700 4800 7100 9200 14700 31300

0-60 925 1650 2700 3700 5200 9100 14000 17500 28000 59500

100 625 1100 1800 2500 3500 6200 9200 11900 19000 40400

0-75 1100 1900 3100 4300 6000 10600 15800 20400 32400 69100

125 650 1150 1900 2600 3600 6400 9500 12300 19600 41900

0-85 1275 2250 3700 5000 7100 12500 18600 24000 38200 81400

150 750 1300 2100 2900 4100 7300 10800 14000 22200 47500

0-100 1450 2500 4200 5700 8000 14100 21000 27100 43100 92000

150 1075 1900 3100 4300 6000 10600 15700 20300 32300 68900

0-120 1575 2800 4600 6200 8700 15400 22900 29500 47000 100200

175 1350 2400 3900 5300 7400 13100 19500 25200 40100 85500

0-130 1750 3100 5100 6900 9700 17100 25500 32900 53400 111800

200 1200 2100 3500 4800 6700 11900 17600 22800 36200 77300

0-160 2045 3605 5920 8075 11310 19220 29610 38230 60840 129750

200 1780 3140 5155 7030 9840 17340 25780 33275 52960 112950

3.8 6.7 11 15 21 37 55 71 113 241

FULL PORT

150

REGULATORS

HD & HSP Series

Reduced Port Regulating Valves

CAPACITIES –

Inlet

Pressure

(PSIG)

CvFactors

5 0 15 35 59 82 140 197 272 438 777 1712

7 2 20 46 79 110 187 265 365 587 1042 2296

10 2 28 68 115 160 274 387 533 858 1523 3354

12 4 33 78 133 185 316 446 615 990 1758 3873

15 5 41 98 166 232 395 558 769 1238 2198 4841

20 10 51 120 204 284 483 684 942 1517 2692 5929

25 10 67 158 269 375 640 905 1246 2006 3561 7843

30 15 76 180 305 426 726 1025 1413 2275 4037 8892

40 25 99 199 367 511 872 1232 1698 2734 4852 10688

50 30 118 277 470 655 1117 1579 2175 3502 6216 13692

60 35 143 338 573 798 1361 1924 2651 4268 7573 16682

75 50 164 387 657 916 1561 2207 3040 4895 8687 19135

90 60 197 465 789 1100 1874 2648 3649 5874 10425 22962

100 60 235 554 940 1310 2234 3158 4351 7006 12432 27384

125 75 294 693 1176 1638 2793 3948 5439 8757 15540 34230

150 100 329 775 1315 1831 3123 4414 6081 9791 17374 38270

175 125 360 849 1440 2006 3421 4835 6661 10725 19032 41923

200 125 459 1082 1836 2557 4360 6164 8492 13672 24262 53442

225 150 493 1162 1972 2747 4684 6621 9121 14686 26061 57405

250 150 588 1386 2352 3276 5586 7896 10878 17514 31080 68460

300 175 715 1690 2865 3990 6800 9615 13250 21330 37850 83370

Note: For inlet pressures in shaded area, use low pressure main valve and low pressure temperature pilot.

Outlet

Pressure

(PSIG)

0-12 81 190 323 450 768 1085 1495 2408 4273 9411

0-18 105 248 420 585 998 1410 1943 3128 5551 12227

0-20 135 318 539 751 1280 1809 2492 4013 7121 15686

0-30 153 360 611 851 1451 2051 2826 4550 8074 17786

0-35 195 460 780 1086 1853 2619 3608 5809 10308 22706

0-45 229 540 916 1277 2177 3077 4239 6825 12112 26680

0-50 255 600 1018 1419 2419 3419 4710 7584 13458 29644

0-60 322 760 1290 1796 3063 4329 5964 9603 17041 37536

0-75 381 900 1527 2128 3628 5128 7065 11376 20187 44467

0-85 449 1060 1800 2505 4272 6939 8320 13396 23771 52362

0-100 509 1200 2037 2837 4838 6838 9420 15168 26916 59288

0-120 560 1319 2238 3117 5360 7514 10351 16667 29577 65150

0-130 628 1480 2511 3498 5964 8431 11614 18700 33184 73095

0-160 755 1775 3015 4200 7160 10120 13945 22450 39840 87760

Steam (lbs/hr)

1/2" 3/4" 1" 1

1.4 3.3 5.6 7.8 13.3 18.8 25.9 41.7 74 163

2 13 32 53 75 128 181 249 401 712 1569 0 21 48 82 115 195 276 381 613 1088 2396

3 19 44 74 104 177 250 344 554 983 2165 0 29 70 117 164 279 395 544 876 1554 3423

5 25 60 102 142 242 342 471 758 1346 2964 0 35 83 141 197 335 473 653 1051 1865 4108

7 29 68 115 160 272 385 530 854 1515 3336

0-3 43 102 173 241 410 580 800 1287 2284 5031

8 37 88 149 208 354 500 690 1111 1972 4343

0-5 57 134 227 317 541 764 1053 1696 3009 6629

12 47 111 188 262 447 632 870 1401 2486 5477

0-7 70 166 282 393 670 948 1305 2102 3730 8215

15 59 139 235 328 559 790 1088 1751 3108 6846

20 66 155 263 366 625 883 1216 1958 3475 7654

30 78 183 311 433 739 1044 1439 2317 4111 9056

40 88 208 353 491 838 1184 1632 2627 4662 10269

50 98 230 390 543 926 1309 1804 2904 5154 11353

60 132 312 529 737 1257 1777 2448 3941 6993 15404

75 146 345 585 815 1389 1964 2705 4357 7731 17029

80 176 416 706 983 1676 2367 3263 5254 9324 20538

100 221 518 882 1229 2095 2961 4079 6568 11655 25672

125 243 575 975 1385 2316 3274 4510 7261 12885 28382

150 265 625 1060 1476 2518 3558 5606 7893 14008 30855

150 389 917 1556 2167 3695 5223 7195 11584 20557 45232

175 416 980 1663 2316 3950 5583 7692 12384 21976 48409

200 441 1040 1764 2457 4190 5922 8159 13136 23310 51345

200 655 1550 2625 3655 6235 8810 12140 19545 34680 76400

/4"1

/2"2" 2

/2"3" 4" 6"

– Capacities

REDUCED PORT

REGULATING VALVES

PILOT-OPERATED

151

Control Products A4 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual