Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1989-05-26
1990-04-10
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137 71, 137906, 169 58, 169 70, G05D 1606
Patent
active
049151274
ABSTRACT:
A gas regulator includes a housing having a high pressure chamber with an inlet passage thereto, a low pressure chamber with an outlet passage therefrom, and an orifice extending between the high pressure chamber and the low pressure chamber. The low pressure chamber is open at one end and an enclosed bonnet is mounted on the housing across the open end of the low pressure chamber. A movable pressure sensing/control element is mounted across the open end of the low pressure chamber and separates the low pressure chamber from the bonnet. The bonnet is filled with a gas under pressure which applies a force onto one side of the pressure sensing/control element. A valve plug is in the high pressure chamber and is connected to the pressure sensing/control element so as to be movable toward and away from the orifice to open and close the regulator. A spring is connected to the pressure sensing/control element so as to apply a force thereto opposite to the force applied by the gas in the bonnet. The spring includes means for adjusting the force applied by the spring.
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Air Products and Chemicals Inc.
Hepperle Stephen M.
Marsh William F.
Simmons James C.
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