Specs

Body Sizes

NPS 3/4 1 NPT

Maximum Operating Inlet Pressure

125 psig / 8,6 bar

Maximum Allowable Emergency Inlet Pressure

175 psig / 12,1 bar

Maximum Allowable Emergency Inlet Pressure

175 psig / 12,1 bar

Allowable Outlet Pressure (Casing)

Emergency: 10 psig / 0,69 bar
Maximum Operating to Avoid Internal Part Damage: 5 psig / 0,34 bar

Outlet Pressure Range

4.2-inches w.c. to 2.5 psig / 11 mbar to 0,17 bar in six ranges

Orifice Sizes and Color Code

1/8-inch / 3,2 mm (Blue)
3/16 inch / 4,8 mm (Green)
1/4-inch / 6,4 mm (Brown)

Temperature Capabilities

-20° to 160°F / -29° to 71°C

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Fisher™ Type S402Y Pressure Reducing Regulator