Emerson 167D Instruction Manual

Instruction Manual Form 5859

June 2011

167D Series Switching Valves

P1184P1185

167D Series

TYPE 167D TWO-WAY SWITCHING VALVE TYPE 167DA THREE-WAY SWITCHING VALVE

Figure 1. 167D Series Switching Valves

WARNING

Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion,  re and/or chemical contamination causing property damage and personal injury or death.

Fisher® switching valves must be installed, operated, and maintained in accordance with federal, state, and local codes, rules, and regulations, and Emerson Process Management Regulator Technologies, Inc. instructions.

If the switching valve vents gas or a leak develops in the system, service to the unit may be required. Failure to correct trouble could result in a hazardous condition.

Installation, operation, and maintenance procedures performed by unquali ed personnel may result in improper adjustment and unsafe operation. Either condition may result in equipment damage or personal injury. Use quali ed personnel when installing, operating, and maintaining the 167D Series switching valves.

Introduction

Scope of the Manual

This manual provides instructions for the installation, maintenance, and parts ordering for the 167D Series Switching Valves. Instructions and parts lists for other equipment mentioned in this instruction manual, as well as for other switching valves are found in separate manuals.

www. sherregulators.com

D103234X012

167D Series

Specications

Some general 167D Series switching valve ratings and other specications are given on this page. A label on the

spring case gives the control spring range for a given valve as it comes from the factory.

Available Congurations Types 167D and 167DS: Two-way switching valve Types 167DA and 167DAS: Three-way

switching valves

Body Size, Inlet and Outlet Connection Style Ports A and C: 1/4 or 1/2 NPT Vent and Control Pressure Connections

(Port D) and Port B: 1/4 NPT

Maximum Operating Inlet Pressure

(1)

Types 167D and 167DS: 400 psig / 27,6 bar Types 167DA and 167DAS: 125 psig / 8,6 bar Types 167DA and 167DAS (NACE):

100 psig / 6,9 bar

Set Pressure Ranges

See Tables 1 and 2

Maximum Diaphragm Pressure

(1)

150 psi / 10,3 bar over outlet pressure setting up to a maximum of 250 psi / 17,2 bar

Flow and Sizing Coefcients

See Table 3

Spring Case Vent Location Aligned with inlet (standard), other positions optional

Temperature Capabilities

(1)

Nitrile (NBR) Standard Service (Types 167D and 167DA only):

-20° to 180°F / -29° to 82°C Low Temperature Service (Types 167D and

167DA only) and Standard Service (Types 167DS and 167DAS only): -40° to 180°F / -40° to 82°C

Fluorocarbon (FKM) High Temperature Service: 0° to 300°F /

-18° to 149°C

Approximate Weights

Types 167D and 167DA: 1.2 pounds / 0,5 kg Types 167DS and 167DAS: 2.8 pounds / 1 kg

Options

Types 167D and 167DA

• Handwheel adjusting screw

• Fluorocarbon (FKM) diaphragm, soft seat, seat,

and O-rings

• Stainless steel valve stem and plug. Includes stainless steel seat

• 1-hole panel mount with handwheel adjusting screw and 1/4 NPT tap spring case

• 3-hole panel mount bonnet with handwheel

adjusting screw and 1/4 NPT spring case

• 1/4 NPT tapped vent spring case

• 1/4 NPT tapped vent and closing cap

• Adjusting screw with locknut and a lock wire to one ange bolt (For Type 167D only)

• Panel mounting bracket. Includes 1/4 NPT

spring case, standard adjusting screw, nut,

and bracket

• Yoke mounting bracket. Includes 1/4 NPT

spring case, standard adjusting screw, nut,

fasteners, and bracket

• Size 30-70 casing mounting bracket. Includes

1/4 NPT spring case, standard adjusting screw,

nut, fasteners, and bracket

• NACE MR0175 or NACE MR0103 construction

Types 167DS and 167DAS

• Handwheel adjusting screw

• Fluorocarbon (FKM) diaphragm, soft seat, seat,

and O-rings

• 1-hole panel mount with handwheel adjusting screw and 1/4 NPT tap spring case

• Panel mounting bracket. Includes 1/4 NPT

spring case, standard adjusting screw, nut, and

bracket

• Yoke mounting bracket. Includes 1/4 NPT

spring case, standard adjusting screw, nut, fasteners,

and bracket

• Size 30-70 casing mounting bracket. Includes nut, fasteners, and bracket

(2)

1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.

2. Product complies with the material requirements of NACE MR0175 or MR0103. Environmental limits may apply.

167D Series

OUTLET PRESSURE (WHEN LOADING PRESSURE IS LESS THAN SETPOINT)

INLET PRESSURE

OUTLET PRESSURE (WHEN LOADING PRESSURE IS EQUAL TO OR GREATER THAN SETPOINT) ATMOSPHERIC PRESSURE

LOADING PRESSURE

ADJUSTING SCREW

ORIFICE SEAT

M1151

O-RING

PORT A

BODY

CONTROL SPRING

DIAPHRAGM

PORT C

VALVE STEM

VALVE PLUG

VALVE SPRING

PORT B

SOFT SEAT

O-RING

PORT A

M1152

TYPE 167DA THREE-WAY SWITCHING VALVE

INLET PRESSURE OUTLET PRESSURE (WHEN LOADING PRESSURE IS LESS THAN SETPOINT) OUTLET PRESSURE (WHEN LOADING PRESSURE IS EQUAL TO OR GREATER THAN SETPOINT) ATMOSPHERIC PRESSURE LOADING PRESSURE

Figure 2. 167D Series Operational Schematics (Port D not shown)

ADJUSTING SCREW

BODY

TYPE 167D TWO-WAY SWITCHING VALVE

CONTROL SPRING

DIAPHRAGM

PORT C

VALVE STEM

ORIFICE SEAT

VALVE PLUG

VALVE SPRING

TYPE

167DA

167DAS

TYPE

167D

167DS

Table 1. Three-Way Switching Valves Set Pressure Ranges and Control Spring Data

SET PRESSURE RANGE CONTROL SPRING DATA

Port A or C

as Inlet

psig bar psig bar Inch mm Inch mm psid bar d

14 to 20 16 to 35

25 to 60

40 to 125

14 to 20 16 to 35

25 to 60

40 to 125

0,97 to 1,4

1,1 to 2,4

1,7 to 4,1 2,8 to 8,6

0,97 to 1,4

1,1 to 2,4 1,7 to 4,1 2,8 to 8,6

Port B as Inlet

7 to 20

10 to 30

25 to 50 40 to 90

7 to 20 10 to 30 25 to 50 40 to 90

0,48 to 1,4 0,69 to 2,1

1,7 to 3,4 2,8 to 6,2

0,48 to 1,4 0,69 to 2,1

1,7 to 3,4 2,8 to 6,2

Color Code Material Part Number

White stripe

Purple stripe

Brown stripe

Pink stripe

White Purple Brown

Pink

Zinc-plated Music Wire

Chrome

Silicon

Inconel

X-750

GE40282X012 GE40283X012

GE40284X012 GE40345X012

GE40320X012 GE40321X012 GE40322X012 GE40323X012

Wire Diameter Free Length

0.145

0.172

0.207

0.148

0.162

0.177

0.218

3,68 3,96

4,37 5,26

3,76 4,12 4,50 5,54

1.425 36,2

1.750 44,4

0.156

MAXIMUM

PRESSURE

CHANGE ON

TO SHIFT FROM

PORT B CLOSED

TO PORT C

CLOSED

10130,69

17 35

8 12 16 31

Table 2. Two-Way Switching Valves Set Pressure Ranges and Control Spring Data

SET PRESSURE RANGE CONTROL SPRING DATA

Port A as Inlet

psig bar Inch mm Inch mm

3 to 15 5 to 20 5 to 35

25 to 60

40 to 125

5 to 20 5 to 35

25 to 60 40 to 125 50 to 150

0,21 to 1,0 0,34 to 1,4 0,34 to 2,4

1,7 to 4,1 2,8 to 8,6

0,34 to 1,4 0,34 to 2,4

1,7 to 4,1 2,8 to 8,6

3,4 to 10,3

Color Code Material Part Number

Yellow stripe White stripe

Purple stripe

Brown stripe

Pink stripe

White Purple Brown

Pink Gold

Zinc-plated Music Wire

Chrome Silicon

X-750

Inconel

GG00421X012

GE40282X012 GE40283X012

GE40284X012 GE40345X012

GE40320X012 GE40321X012 GE40322X012 GE40323X012 GE40324X012

Wire Diameter Free Length

0.142

3,61

0.145

0.172

0.207

0.148

0.162

0.177

0.218

0.234

3,68 3,96

4,37 5,26

3,76 4,12 4,50 5,54 5,94

1.425 36,2

1.750 44,4

0.156

0,90

1,2 2,4

0,55 0,83

1,1 2,1

is a mark owned by Special Metals Corporation.

Inconel

167D Series

Product Description

The 167D Series switching valves are pneumatically

operated and controlled units, built with a wide range of capabilities to handle those switching applications that

involve venting, on-off control, and failure modes.

• The Types 167D and 167DS are two-way

switching valves.

• The Types 167DA and 167DAS are three-way

switching valves.

Principle of Operation

Refer to Figure 2 and also refer to Figures 3 through

5 for port D location. Control pressure enters the

switching valve through port D (not shown in Figure 2)

and registers under the diaphragm. Control pressure overcomes the spring force and the diaphragm and raise the valve plug, closing port C and opening port B

of the Type 167DA three-way switching valve. In this

condition, the Type 167D construction is turned off and

the Type 167DA construction provides ow from path A to B. If, either intentionally or through pneumatic failure, the control pressure drops below the spring

force, the diaphragm and valve plug move downward,

opening port C and closing port B of the Type 167DA three-way switching valve. In this condition both constructions provide a ow path from port A to

port C. The pressure change necessary to switch the valve depends on the spring used and the setting of the adjusting screw on the switching valve.

Overpressure Protection

valve or associated equipment may cause leakage,

parts damage, or personal injury due to bursting of

pressure-containing parts or explosion of accumulated gas. Switching valve operation within ratings does

not preclude the possibility of damage from external sources or from debris in the pipeline. A switching valve should be inspected for damage periodically and

after any overpressure condition.

Installation

Note

If the switching valve is shipped mounted on another unit, install that unit according to the appropriate Instruction Manual.

WARNING

Personal injury, property damage, equipment damage, or leakage due to escaping gas or bursting of pressurecontaining parts may result if this switching valve is overpressured or is installed where service conditions could exceed the limits given in the Specications section, or where conditions exceed any ratings of the adjacent piping or piping connections. To avoid such injury or damage, provide pressure-relieving or pressurelimiting devices (as required by the appropriate code, regulation, or standard) to prevent service conditions from exceeding those limits.

The 167D Series switching valves have maximum outlet pressure ratings that are lower than their

maximum inlet pressure ratings. A pressure-

relieving or pressure-limiting device is needed if inlet pressure can exceed the maximum outlet pressure rating. Overpressuring any portion of a switching

Table 3. Flow and Sizing Coefcients

TYPES BODY SIZE PORT

167D, 167DS

167DA, 167DAS

1/4 NPT

1/2 NPT 46.50 1.18 39.03 0.96

All sizes B 27.79 0.96 28.74 0.52

1/4 NPT

1/2 NPT 58.86 1.81 32.22 0.66

Before installing a Type 167D, 167DA, 167DS, or 167DAS switching valve, be sure the installation

complies with the following installation guidelines:

1. Switching valve operation within ratings does not

preclude the possibility of damage from debris in

WIDE-OPEN FLOW COEFFICIENTS

41.46 1.09 37.56 0.89

49.35 1.60 30.58 0.59

IEC SIZING

COEFFICIENTS

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