6350 Series
D100178XENG
Installation Guide
English – May 2002
www.FISHERregulators.com
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:
Type 1098-EGR Instruction Manual, form 5084, D100339X012
Type 627F Instruction Manual, form 5282, D101545X012
(for Type 6351F only)
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 out-
side of the Pressure Equipment Directive using sound
engineering practice (SEP) per table below.
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Specifications
Available Configurations
6351:
Set pressures – 0,21 to 6,9 bar (3 to 100
psig). This pilot has an unbalanced valve plug
design and fixed restriction.
6351F:
Set pressures – 0,34 to 6,9 bar (5 to 100
psig). This pilot has an unbalanced valve plug
design and standard gain restriction. This pilot is
used with the Type 627F main valve.
6352:
Set pressures – 5 mbar to 0,69 bar (2-
inches w.c. to 10 psig). This pilot has a balanced
valve plug design and a standard gain restriction.
(1)
6353:
Set pressures – 0,21 to 6,9 bar (3 to 100
psig). This pilot has a balanced valve plug design
and a standard gain restriction.
(1)
6354L:
Set pressures – 5,9 to 13,8 bar (85 to 200
psig). This pilot has a balanced valve plug design
and a standard gain restriction.
(1)
6354M:
Set pressures – 12,1 to 15,2 bar (175 to
220 psig). This pilot has a balanced valve plug
design and a standard gain restriction.
(1)
6354H:
Set pressures – 13,8 to 20,7 bar (200 to
300 psig). This pilot has a balanced valve plug
design and a standard gain restriction.
(1)
Maximum Inlet Pressure
(2)
41 bar (600 psig)
Maximum Outlet Pressure
(2)
6351, 6351F:
10,3 bar (150 psig)
6352:
3,4 bar (50 psig)
6353:
bar (150 psig)
6354L, 6354M, 6354H:
24,8 bar (360 psig)
Outlet Pressure Ranges
See table 1
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Temperature Capabilities
Nitrile/Neoprene: -40 to 82°C (-40 to 180°F)
Fluoroelastomer: -18 to 149°C (0 to 300°F) hot
water limited to 82°C (180°F)
Installation
Only qualified personnel should install or service
a regulator. Regulators should be installed, oper-
ated, and maintained in accordance with interna-
tional 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 imme-
diately may create a hazardous condition.
Personal injury, equipment damage, or leakage
due to escaping fluid or bursting of pressure-con-
taining parts may result if this regulator is over-
pressured or is installed where service condi-
tions could exceed the limits given in the Specifi-
cations section, or where conditions exceed any
ratings of the adjacent piping or piping connec-
tions.
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 lim-
its.
Additionally, physical damage to the regulator
could result in personal injury and property dam-
age due to escaping fluid. To avoid such injury
and damage, install the regulator in a safe loca-
tion.
1. Optional low gain restriction for liquid service and/or broader proportional bands or
high gain restriciton for narrower proportional bands (such as low-differential boiler
fuel service).
2. The pressure/temperature limits in this installation guide and any applicable
standard or code limitation should not be exceeded.
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Table 1. Outlet Pressure Ranges