Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1988-06-20
1989-07-18
Cohan, Alan
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137489, 1374925, 251 50, F16K 31124
Patent
active
048483974
ABSTRACT:
A high temperature safety relief system for a pressure vessel (10) including a pilot controlled main relief valve (16) and an associated non-flowing pilot valve (34) with high temperature metal or metal like seals for temperatures as high as around 1,000.degree. F. provided for both the main relief valve (16) and pilot valve (34). The main valve body (26) has a main body chamber (48) in fluid communication with the inlet flow passage (45) when the reciprocal piston valve member (88) is in seated closed position. The movement of the piston valve member (88) is cushioned during movement to open position and during movement to closed position. The non-flowing pilot valve (34) has an elongate internal housing (204) receiving the inlet line (36) along its longitudinal axis and the housing (204) is mounted for external rotational adjustment to control the blowdown pressure.
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Bickford Cleo M.
Powell Walter W.
Sample Larry A.
Cohan Alan
Keystone International Inc.
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