S200 Series
D400007XENG
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 S201 and S202 Instruction Manual, form 5171,
D400007X012
• Type S201P, S201PK, and S202P Instruction Manual,
form 5172, D400009X012
• Type S203, S203H, and S203P1-P3 Instruction Manual,
form 2216, D400010X1012
• Types S204 and S206 Instruction Manual, form 1749,
D400011X012
• Types S208 and S209 Instruction Manual, form5412,
D102247X012
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 Constructions (See table 1)
S201:
Basic construction without internal relief for
5 to 75 mbar (2 to 30-inches w.c.) outlet pressures
S201H:
S201 with a heavy diaphragm plate for 0,069
to 0,34 bar (1 to 5 psig ) outlet pressures
S201K:
S201 with a heavy diaphragm plate for 0,14
to 0,69 bar (2 to 10 psig) outlet pressures
S201P:
S201 with downstream control line connec-
tion and O-ring stem seal for external pressure
registration
S201PK:
Combination of S201K and S201P
S202, S202H, S202P:
S201, S201H, and S201P
constructions with internal relief
S203, S203H, S203P:
S201, S201H, and S201P
constructions with “True” monitor regulator to
provide overpressure protection. Available in Cast
iron body only.
S204, S204H:
S201 and S201H constructions with
a low outlet pressure shutoff. Available in Cast
iron body only.
S206, S206H:
S202 and S202H constructions with
a low outlet pressure shutoff with internal relief.
Available in Cast iron body only.
S208, S208H, S208P, S208K, S208PK:
S201,
S201H, S201P, S201K, and S201PK constructions
with a Type VSX-2 slam-shut device to provide over-
pressure (OPSO) or over and underpressure (UPSO)
protection. Available in Ductile iron body only.
S209, S209H, S209P:
S202, S202H, and S202P
constructions with a Type VSX-2 slam-shut device
to provide overpressure (OPSO) or over and under-
pressure (UPSO) protection. Available in Ductile
iron body only.
Body Sizes and End Connection Styles
(1)
See table 2
Minimum and Maximum Inlet Pressures
(1)
Maximum Emergency (Body Rating) Inlet
Pressure:
12 bar (175 psig)
Maximum Operating Inlet Pressure:
See table 4
Types S204 and S206 Minimum Inlet Pressure
Required to Prevent Shutoff:
See figure 1
Maximum Outlet Pressure (Casing)
(1)
1,0 bar (15 psig)
Maximum Operating Outlet Pressure to Avoid Internal
Part Damage
(1)
Light Diaphragm Plate:
0,14 bar
(2 psi) above
outlet
pressure setting
Heavy Diaphragm Plate:
0,21 bar
(3 psi) above
outlet pressure setting
Outlet Pressure Ranges
(1)
See table 3
Integral Monitor Performance
(1)
See table 5
Internal Relief Performance
(1)
Internal relief valve opens at 20 to 69 mbar
(7 to 28-inches w.c.) above outlet setting, depending
on control spring
Type VSX-2 Trip Pressure Ranges
(1)
See table 6
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
Maximum Temperature Capabilities
(1)
Nitrile (NBR):
–29° to 66°C (–20° to 150°F)
Fluoroelastomer (FKM):
–18° to 93°C (0° to 200°F)
(Upper temperature limitation due to nylon flappers)
Type VSX-2:
–29° to 60°C (–20° to 140°F)
1. The pressure/temperature limits in this installation guide and any applicable
standard or code limitation should not be exceeded.
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S201
S201H
S201K
S201P
S201PK
S202
S202H
S202P
S203
S203H
S203P
S204
S204H
S206
S206H
S208
S208H
S208K
S208P
S208PK
S209
S209H
S209P
Table 1.
Available Constructions
