Emerson 95 Installation Guide
Installation Guide
!
English – November 2009
Types 95H and 95HD
Introduction
Temperature Capabilities
Elastomer Parts
This installation guide provides instructions
for installation, startup, and adjustment. To
receive a copy of the instruction manual, contact
your local Sales Ofce or view a copy at
www.sherregulators.com. For further information
refer to:
Types 95L and 95H instruction manual (form 1151,
D100256X012) or Types 95LD and 95HD instruction
manual (form 1396, D100257X012).
Nitrile (NBR)/Neoprene (CR): -40° to 82°C /
-40° to 180°F
Fluorocarbon (FKM): -18° to 149°C / 0° to 300°F;
hot water limited to 93°C / 200°F
Ethylenepropylene (EPDM): -40° to 135°C /
-40° to 275°F
Polytetrauoroethylene (PTFE): -40° to 204°C /
-40° to 400°F
Peruoroelastomer (FFKM): -18° to 218°C /
0° to 425°F
Metal Parts
P.E.D. Categories
Cast Iron: -40° to 208°C / -40° to 406°F
Steel: -29° to 232°C / -20° to 450°F
This product may be used as a safety accessory
Stainless Steel: -40° to 232°C / -40° to 450°F
with pressure equipment in the following Pressure
Equipment Directive 97/23/EC categories. It may
also be used outside of the Pressure Equipment
Installation
Directive using sound engineering practice (SEP)
per table below.
PRODUCT SIZE CATEGORIES FLUID TYPE
DN 25 / NPS 1/4 to 1 SEP
DN 40 to 50 / NPS 1-1/2 to 2 I, II
1
Only qualied personnel should install
or service a regulator. Regulators
should be installed, operated, and
maintained in accordance with
Specications
Available Constructions
Type 95H: High-pressure regulator for 0,34 to
10,3 bar / 5 to 150 psig outlet pressures. DN 15,
20, 25, 40, and 50 / NPS 1/4, 1/2, 3/4, 1, 1-1/2,
and 2 body sizes are available in cast iron, steel,
or stainless steel.
Type 95HD: High-pressure differential regulator
for 0,34 to 10,3 bar / 5 to 150 psi differential
pressures. DN 15, 20, 25, 40, and 50 / NPS 1/4,
1/2, 3/4, 1, 1-1/2, and 2 body sizes are available
in cast iron, steel, or stainless steel.
Maximum Inlet and Outlet Pressures
Cast Iron: 17,2 bar / 250 psig
Steel and Stainless Steel: 20,7 bar / 300 psig
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Outlet Pressure Ranges
(1)
DN 15, 20, and 25 / NPS 1/4, 1/2, 3/4, and 1:
1,0 to 2,1 bar / 15 to 30 psig; 1,7 to 5,2 bar / 25
to 75 psig; and 4,8 to 10,3 bar / 70 to 150 psig
DN 40 and 50 / NPS 1-1/2 and 2: 0,34 to
5,5 bar / 5 to 80 psig; 4,1 to 8,3 bar / 60 to
(1)(3)
international and applicable codes and
regulations, and Emerson Process
Management Regulator Technologies,
Inc. instructions.
If the regulator vents uid or a leak
develops in the system, it indicates that
service is required. Failure to take the
regulator out of service immediately may
create a hazardous condition.
Personal injury, equipment damage,
or leakage due to escaping uid
or bursting of pressure-containing
parts may result if this regulator is
overpressured or is installed where
service conditions could exceed
the limits given in the Specications
section, or where conditions exceed
any ratings of the adjacent piping or
piping connections.
To avoid such injury or damage,
provide pressure-relieving or
pressure-limiting devices (as required
by the appropriate code, regulation,
or standard) to prevent service
conditions from exceeding limits.
120 psig; 6,9 to 9,7 bar / 100 to 140 psig; and
8,3 to 10,3 bar / 120 to 150 psig
1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.
2. Pressures and/or the body end connection may decrease these maximum temperatures.
3. Temperature and/or the body end connection may decrease these maximum pressures.
(1)(2)
WARNING
D100256XUS2
www.sherregulators.com
Types 95H and 95HD
!
Additionally, physical damage to the
regulator could result in personal
injury and property damage due to
escaping uid. To avoid such injury
and damage, install the regulator in a
safe location.
Clean out all pipelines before installation of the
regulator and check to be sure the regulator has
not been damaged or has collected foreign material
during shipping. For NPT bodies, apply pipe
compound to the external pipe threads. For anged
bodies, use suitable line gaskets and approved piping
and bolting practices. Install the regulator in any
position desired, unless otherwise specied, but be
sure ow through the body is in the direction indicated
by the arrow on the body.
Note
It is important that the regulator be
installed so that the vent hole in the
spring case is unobstructed at all
times. For outdoor installations,
the regulator should be located away
from vehicular trafc and positioned
so that water, ice, and other foreign
materials cannot enter the spring
case through the vent. Avoid placing
the regulator beneath eaves or
downspouts, and be sure it is above
the probable snow level.
Overpressure Protection
The recommended pressure limitations are
stamped on the regulator nameplate. Some type
of overpressure protection is needed if the actual
inlet pressure exceeds the maximum operating
outlet pressure rating. Overpressure protection
should also be provided if the regulator inlet pressure
is greater than the safe working pressure of the
downstream equipment.
Regulator operation below the maximum pressure
limitations does not preclude the possibility of
damage from external sources or debris in the line.
The regulator should be inspected for damage after
any overpressure condition.
Startup
The regulator is factory set at approximately
the midpoint of the spring range or the pressure
requested, so an initial adjustment may be required
to give the desired results. With proper installation
completed and relief valves properly adjusted, slowly
open the upstream and downstream shutoff valves.
Adjustment
Type 95H:
To change the outlet pressure, loosen the locknut and turn
the adjusting screw clockwise to increase outlet pressure
or counterclockwise to decrease pressure. Monitor the
outlet pressure with a test gauge during the adjustment.
Tighten the locknut to maintain the desired setting.
Type 95HD:
The Type 95HD setting may be adjusted by turning
the handwheel (key 38, Figure 2).
Taking Out of Service (Shutdown)
WARNING
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.
Parts List
Key Description
1 Regulator Body
2 Spring Case
3 Orice
4 Valve Plug
5 Valve Plug Guide
6 Stem Assembly
7 Stem Guide Bushing
8 Lower Spring Seat
9 Upper Spring Seat
10 Valve Plug Spring
11 Regulator Spring
12 Diaphragm
14 Diaphragm Protector
15 Adjusting Screw
16 Cap Screw
17 Locknut
18 Drive Screw
19 Diaphragm Gasket
20 Pilot Tube
22 Adjusting Screw Assembly
23 Handwheel
24 Machine Screw
25 Lockwasher
The following parts are for the
DN 40 and 50 / 1-1/2 and 2
body sizes only:
Key Description
30 Pusher Post
31 Locknut
45 O-Ring
47 Diaphragm Gasket
48 Diaphragm Head
49 Lockwasher
50 Packing Follower
51 O-Ring
52 Spring
54 Inner Valve Base
56 NACE Tag
57 Tag Wire
The following parts are for
the Type 95HD only:
Key Description
32 Packing Box
33 Adjusting Screw
34 Packing Follower
35 Packing Box Nut
36 Packing
37 Packing Box Gasket
38 Handwheel
39 Female Adaptor
40 Male Adaptor
41 Machine Screw
42 Spring
43 Washer
44 Washer
45 O-Ring
47 Diaphragm Gasket
48 Diaphragm Head
49 Lockwasher
50 Packing Follower
51 O-Ring
52 Spring
54 Inner Valve Base
2
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