Data Sheet

Bulletin 71.1:S200
4


 Basic construction without internal relief
for 2 to 30-inches w.c. / 5 to 75 mbar outlet pressures
 Type S201 with a heavy diaphragm
plate for 1 to 5 psig / 0.07 to 0.35 bar outlet pressures
 Type S201 with a heavy diaphragm
plate for 2 to 10 psig / 0.14 to 0.69 bar
outlet pressures
 Type S201 with downstream control
line connection and O-ring stem seal for external
pressure registration
 Combination of Types S201K
and S201P
Types S201,
S201H, and S201P constructions with internal relief
Types S201,
S201H, and S201P constructions with True-Monitor
™
regulator to provide overpressure protection.
Available in Cast iron body only.
 Types S201 and S201H
constructions with a low outlet pressure shutoff.
Available in Cast iron body only.
Types S202 and S202H
constructions with a low outlet pressure shutoff with
internal relief. Available in Cast iron body only.

Types S201, S201H, S201P, S201K, and S201PK
constructions with a Type VSX-2 slam-shut device
to provide overpressure (OPSO) or over and
underpressure (UPSO) protection. Available in
Ductile iron body only.
 Types S202,
S202H, and S202P constructions with a Type VSX-2
slam-shut device to provide overpressure (OPSO)
or over and underpressure (UPSO) protection.
Available in Ductile iron body only.


See Table 2



 175 psig / 12.1 bar
 See Table 4

See Figure 10


15 psig / 1.0 bar



2 psi / 0.14 bar above outlet
pressure setting

 

 3 psi / 0.21 bar above
outlet pressure setting

See Table 3

See Table 5 and Figure 8

Internal relief valve opens at 7 to 28-inches w.c. /
17 to 70 mbar above outlet setting, depending on
control spring; also see Figure 6

See Table 6

See Tables 7 through 11

See Table 4


Body: Cast iron, Ductile iron, or Steel; Refer to
Table 1 for available constructions
Spring Case, Lower Diaphragm Casing, Union
Ring, Orice, and Disk Holder(s): Aluminum
Disk(s), Diaphragm(s), and O-ring(s): Nitrile (NBR) or
Fluorocarbon (FKM)
Closing Cap Gasket: Neoprene (CR)
Monitor Regulator Piston Ring: Graphite
Stabilizer Vent Flappers: Nylon (PA)

Upper and Lower Casing: Aluminum
Valve Plug: Nitrile (NBR) plug and Aluminum stem
Diaphragm and O-rings: Nitrile (NBR)
Closing Cap: ABS plastic
Reset Button: Brass


 -20 to 150°F / -29 to 66°C
 0 to 200°F / -18 to 93°C
(Upper temperature limitation due to
Nylon (PA) appers)
  -20 to 140°F -29 to 60°C


See Figures 12 and 13

28 pounds / 13 kg

• 1/8-inch NPT inlet test pressure connection
• Polytetrauoroethylene (PTFE) diaphragm protector
1. The pressure/temperature limits in this Bulletin or any applicable standard limitation should not be exceeded.