Type OSE
Instruction Manual Form 5434
Type OSE Slam-Shut Valve Introduction Scope of Manual This instruction manual provides installation, maintenance, and parts information for the Type OSE SlamShut Valve.
sure. The second stage is the power stage, once tripped the closing spring causes the valve plug to slam-shut and remains closed until the valve is manually reset. The second stage is submitted to all the inlet pressure variations and vibrations, none of which are transmitted to the first stage.
Description
Incorporated in the Type OSE valve plug is an automatic equalizer bypass which balances pressures on each side of the valve plug when resetting.
The purpose of the Type OSE Slam-Shut Valve is to totally and rapidly cut the gas flow when the outlet pressure of the pressure regulator exceeds or drops below the setting. The Type OSE consists of a valve, a mechanism box and a modular sensing element (manometric device).
The Type OSE Slam-Shut Valve is suitable for all pressure set-points from 4-inches w.c. to 1044 psig (10 mbar to 72 bar) by simply replacing the modular sensing element (manometric device). There is also an optional manual emergency button and an optional explosion proof limit switch.
The detection of the pressure variances is sensed by a double stage mechanism. The first stage is the detection stage and will only trip when the outlet pressure of the pressure regulator reaches the set-pres-
Specifications Table 1 lists the specifications for the Type OSE Slam-Shut Valve.
W6844/IL
Figure 1. Type OSE Slam-Shut Valves
Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc. All other marks are the property of their respective owners. EFisher Controls International, Inc. 1997; All Rights Reserved 3/97