Installation Guide
English – May 2002
Introduction
This installation guide provides instructions for installation,
startup, and adjustment. To receive a copy of the instruction
manual,
contact
your
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.
P
R
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C
T
S
Z I
E
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N
6
1 (
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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.
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.
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.
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.
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.
Maximum Inlet Pressure
41 bar (600 psig)
Maximum Outlet Pressure
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
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.
local
Fisher
Sales
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1
(1)
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(1)
(1)
(2)
(2)
www.FISHERregulators.com
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.
(1)
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.
Table 1. Outlet Pressure Ranges
P
L I
O
T
T
Y
P
E
O
6
3
5
1
6
3
5
1
F
6
3
5
2
6
3
5
3
6
3
5
4
L
(
) 1
6
3
5
4
M
(
) 2
6
3
5
4
H
. 1
W
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h t
o
t u
d
a i
p
h
a r
g
m
i l
i m
e t
. 2
W
i
h t
d
a i
p
h
a r
g
m
i l
i m
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. r
6350 Series
U
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E
T
C (
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P
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S
S
U
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0
2 ,
1
o t
1
4 ,
b
r a
3 (
o t
2
0
p
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0
3 ,
4
o t
2
4 ,
b
r a
5 (
o t
3
5
p
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2
4 ,
o t
6
9 ,
b
r a
3 (
5
o t
1
0
0
p
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0
3 ,
4
o t
2
4 ,
b
r a
5 (
o t
3
5
p
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2
4 ,
o t
6
9 ,
b
r a
3 (
5
o t
1
0
0
p
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5
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1
4
0
m
b
r a
2 (
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e
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w
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o t
0
1 ,
4
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0
6 ,
9
b
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2 (
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1
0
p
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0
2 ,
1
o t
2
8 ,
b
r a
3 (
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4
0
p
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2
4 ,
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6
9 ,
b
r a
3 (
5
o t
1
0
0
p
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5
9 ,
o t
1
3
8 ,
b
r a
8 (
5
o t
2
0
0
p
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1
2
1 ,
o t
1
5
2 ,
b
r a
1 (
7
5
o t
2
2
0
p
i s
1
3
8 ,
o t
2
0
7 ,
b
r a
2 (
0
0
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3
0
0
p
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. r
R
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2
p
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