Types 627W and 627WH
D102504XENG
Installation Guide
English – May 2002
www.FISHERregulators.com
1. The pressure/temperature limits in this installation guide and any applicable
standard or code limitation should not be exceeded.
Introduction
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 672W and 627WH Instruction Manual (form 5447,
D102504X012).
P.E.D. Category
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.
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Specifications
Available Constructions
Type 627W: Direct operated pressure reducing liquid
regulator.
Type 627WH: Type 627W with a diaphragm limiter to
deliver a higher outlet pressure.
Control Line Option: Type 627W or Type 627WH with
a stem seal between the body outlet pressure and
diaphragm case. Pressure is measured under the
diaphragm through the 6,4 mm (1/4-inch) NPT
screwed downstream control line connection.
Body Sizes
DN 20, 25, or 50 (3/4, 1, or 2-inch)
End Connection Styles
NPT Screwed; ANSI Class 150, 300, and 600 RF
flanged [DN 25 or 50 (1 and 2-inch sizes) only];
or PN 16/25/40 [DN 25 or 50 (1 and 2-inch sizes) only]
Maximum Inlet Pressures
(1)
(body rating)
140 bar (2000 psig) for screwed steel 70 bar (1000
psig) for ductile or body rating, whichever is lower
Maximum Operating Inlet and Differential
Pressures
(1)
See table 1
Maximum Operating Outlet Pressures
(1)
See table 1
Outlet Pressure Ranges
(1)
See table 2
Orifice Diameters
Standard: 6,4 or 12,7 mm (1/4 or 1/2-inch)
Optional: 2,4; 3,2; 4,8; or 9,5 mm (3/32, 1/8, 3/16, or
3/8-inch)
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Temperature Capabilities
(1)
Nitrile (NBR):
-40 to 82°C (-40 to 180°F)
Fluoroelastomer (FKM):
-18 to 149°C (0 to 300°F)
Ethylenepropylene (EPDM):
-40 to 149°C (-40 to
300°F)
Perfluoroelastomer (FFKM):
-18 to 149°C (0 to 300°F)
Nylon (PA):
-40 to 93°C (-40 to 200°F)
Teflon (PTFE):
-40 to 149°C (-40 to 300°F)
Installation
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 pressure-
relieving 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.
(2 pages)
(32 pages)
(1 pages)
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