Emerson 95 Series Pressure Reducing Regulators Installation Guide

Installation Guide
English – May 2002
Types 95HP and 95HT
Installation
This installation guide provides instructions for installation,
startup, and adjustment. To receive a copy of the instruction
manual,
contact
your
local
Fisher
Sales
Office or Sales Representative or view a copy at
www.FISHERregulators.com. For further information refer to:
Types 95HP & 95HT Instruction Manual, form 1151,
D100256X012.
P.E.D. Categories
This product may be used as a safety accessory with
pressure equipment in the following Pressure Equipment
Directive 97/23/EC categories. It may also be used outside of the Pressure Equipment Directive using sound
engineering practice (SEP) per table below.
PRODUCT SIZE
CATEGORIES
DN 6 - 25 (1/4 - 1-inch) All
SEP
DN 40 - 50 (1-1/2 - 2-inch) All
I, II
FLUID TYPE
1
Specificatons
Available Configurations(1)
Type 95HP: Elastomeric diaphragm for 15,5 to 27,4
bar (15 to 400 psig) set pressures
Type 95HT: 302 stainless steel diaphragm for 1,0 to
20,7 bar (15 to 300 psig) set pressures
Body Sizes and End Connection Style
DN 6 through 50 (1/4 through 2-inch) NPT, ANSI
class 150 or 300 flanges, or socket weld end
connections
Maximum Inlet Pressures(1)
41 bar (600 psig)
Proof Test Pressure
All Pressure Retaining Components have been proof
tested per Directive 97/23/EC - Annex 1, Section 7.4
Only qualified personnel should install or service
a regulator. Regulators should be installed,
operated, and maintained in accordance with
international and applicable codes and
regulations, and Fisher instructions.
If the regulator vents fluid 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 fluid 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 Specifications section,
or where conditions exceed any ratings of the
adjacent piping or piping connections.
To avoid such injury or damage, provide pressurerelieving or pressure-limiting devices (as required
by the appropriate code, regulation, or standard) to
prevent service conditions from exceeding limits.
Additionally, physical damage to the regulator could
result in personal injury and property damage due
to escaping fluid. 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 male pipe threads. For
flanged bodies, use suitable line gaskets and approved
piping and bolting practices. Install the regulator in any
position desired, unless otherwise specified, but be sure
flow through the body is in the direction indicated by the
arrow on the body.
Outlet Pressure Ranges(1)
95HP and 95HT DN 6 and 15 (1/4 and 1/2-inch):
1,03 to 6,85 bar (15 to 100 psig)
95HP DN 6, 15, 20, and 25 (1/4, 1/2, 3/4, and 1-inch):
5,5 to 27,4 bar (80 to 400 psig)
95HP DN 6, 15, 20, and 25 (1/4, 1/2, 3/4, and 1-inch):
5,5 to 20,5 bar (80 to 300 psig)
Temperature Capabilities(1)
Type 95HP
Nitrile/Neoprene: -40 to 82.2°C (-40 to 180°F)
Fluoroelastomer: -17.8 to 149°C (0 to 300°F)
Type 95HT - Metal Diaphragm and Seat
Steel Body and Spring Case:
-4 to 343°C (-20 to 650°F)
Stainless Steel Body and Spring Case:
-40 to 287°C (-40 to 550°F)
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 traffic 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.
1. The pressure/temperature limits in this installation guide and any applicable
standard or code limitation should not be exceeded.
www.FISHERregulators.com
D102669XENG
Introduction
Types 95HP and 95HT
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.
during the adjustment. Replace the closing cap or tighten
the locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
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
To change the outlet pressure, remove the closing cap or
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
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from all
pressure before attempting disassembly.
Parts List
Key
1
2
3
4
5
6
7
8
9
Description
Regulator Body
Spring Case
Orifice
Valve Plug
Valve Plug Guide
Stem Assembly
Stem Guide Bushing
Lower Spring Seat
Upper Spring Seat
Key
10
11
12
15
16
17
19
20
Description
Valve Plug Spring
Regulator Spring
Diaphragm
Adjusting Screw
Cap Screw
Locknut
Diaphragm Gasket
Pilot Tube
The following parts are for the DN 40 and 50 (1-1/2 and 2-inch) body
sizes only:
Key Description
Key Description
30 Pusher Post
47 Diaphragm Gasket
31 Locknut
48 Diaphragm Head
45 O-Ring
49 Lockwasher
A7249
Figure 1. Type 95HP, Sizes DN 8, 15, 20, and 25
(1/4, 1/2, 3/4, and 1-inch) Composition Trim
The following parts are for the Type 95HD only:
Key Description
Key Description
32 Packing Box
39 Female Adapter
33 Adjusting Screw
40 Male Adapter
34 Packing Follower
41 Machine Screw
35 Packing Box Nut
42 Spring
36 Packing
43 Washer
37 Packing Box Gasket
44 Washer
38 Handwheel
A7251
A7250
METAL TRIM
COMPOSITION TRIM
Figure 2. Type 95HT, Sizes DN 8, 15, 20, and 25
(1/4, 1/2, 3/4, and 1-inch) Metal Trim
Figure 3. Type 95HP, Sizes DN
40 and 50 (1-1/2 and 2-inch)
Figure 4. Type 95HT, Sizes DN 40
and 50 (1-1/2 and 2-inch)
©Fisher Controls International, Inc., 2002; All Rights Reserved
Fisher and Fisher Regulators are marks owned by Fisher Controls International, Inc. The Emerson logo is a trade mark and service mark of Emerson Electric Co.
All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express
or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
For information, contact Fisher Controls, International:
Within USA (800) 588-5853 – Outside USA (972) 542-0132
Italy – (39) 051-4190-606
Singapore – (65) 770-8320
Mexico – (52) 57-28-0888
Printed in U.S.A.
www.FISHERregulators.com