[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

IT1171439B - Fire-safe valve actuator - Google Patents

Fire-safe valve actuator

Info

Publication number
IT1171439B
IT1171439B IT49079/81A IT4907981A IT1171439B IT 1171439 B IT1171439 B IT 1171439B IT 49079/81 A IT49079/81 A IT 49079/81A IT 4907981 A IT4907981 A IT 4907981A IT 1171439 B IT1171439 B IT 1171439B
Authority
IT
Italy
Prior art keywords
actuator
stem
fire
spring
diaphragm
Prior art date
Application number
IT49079/81A
Other languages
Italian (it)
Other versions
IT8149079A0 (en
Inventor
Billy Ray Bruton
Marion Wayne Perkins
Jerome Earl Corneillie
Original Assignee
Us Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/148,385 external-priority patent/US4354425A/en
Application filed by Us Industries Inc filed Critical Us Industries Inc
Priority to IT49079/81A priority Critical patent/IT1171439B/en
Publication of IT8149079A0 publication Critical patent/IT8149079A0/en
Application granted granted Critical
Publication of IT1171439B publication Critical patent/IT1171439B/en

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Abstract

The fire-safe valve actuator cooperates with a bolted bonnet valve to define a bolt chamber with an exterior shroud supporting the actuator housing and providing an imperfect barrier to prevent an external fire from coming into direct contact with the bolts or studs and nuts that connect the bonnet to the valve body. The bolt chamber may also be filled with an insulation material. The actuator may have a return spring connected to the actuator stem through a bearing so that the winding and unwinding of the spring does not result in torque being applied to the actuator stem. Any diaphragm in the actuator can be connected to the actuator stem by a bearing so that rotation of the stem will not impart torque to the diaphragm. A stop can be provided limiting outward movement of the stem under the influence of the spring.
IT49079/81A 1980-05-09 1981-08-10 Fire-safe valve actuator IT1171439B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT49079/81A IT1171439B (en) 1980-05-09 1981-08-10 Fire-safe valve actuator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/148,385 US4354425A (en) 1980-05-09 1980-05-09 Fire-safe valve actuator
IT49079/81A IT1171439B (en) 1980-05-09 1981-08-10 Fire-safe valve actuator

Publications (2)

Publication Number Publication Date
IT8149079A0 IT8149079A0 (en) 1981-08-10
IT1171439B true IT1171439B (en) 1987-06-10

Family

ID=26329364

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49079/81A IT1171439B (en) 1980-05-09 1981-08-10 Fire-safe valve actuator

Country Status (1)

Country Link
IT (1) IT1171439B (en)

Also Published As

Publication number Publication date
IT8149079A0 (en) 1981-08-10

Similar Documents

Publication Publication Date Title
US2980139A (en) Two-way valve
CA2073218A1 (en) Solenoid winding case and protective overmold and method of making
IT1171439B (en) Fire-safe valve actuator
CA920118A (en) Valve stem packing and bearing assembly
US4332368A (en) Valve
CA993743A (en) Solenoid latched diaphragm fuel shut-off valve assembly
JPS5250010A (en) Fluid injection valve
ES2016897A6 (en) hydraulic actuator for isolators.
FR2249274A1 (en) Gas pipe control valve controlled by leak detector - is prevented from closing until leak is detected
JPS5924527B2 (en) sealed transformer
GB1386172A (en) Electromagnetic pressure regulating valve
CA1028677A (en) Isolation valve affording an absolute tightness towards the exterior and between the seat and the shutting member
US2297402A (en) Electric switch
CA1051408A (en) Valve actuator
FR2298751A1 (en) Valve with two shut-off members or one member and filter - has common housing with parallel connections for each member or filter
SU752100A1 (en) Remote control system for fitting arrangement
US2365907A (en) Gate valve with monitor
GB905704A (en) Improvements in valves controlling fluid flow
GB1217838A (en) Fluid control valves
SU416503A1 (en) Emergency valve
GB930836A (en) Improvements in fluid flow control valves
JPS6141482Y2 (en)
JPS56153176A (en) Automatic diaphragm valve
SU1680232A1 (en) System of fire extiguishing
SU1652724A1 (en) Magnetostrictive valves

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970827