EP 1021672 A1 20000726 - A VALVE AND ACTUATOR IN COMBINATION
Title (en)
A VALVE AND ACTUATOR IN COMBINATION
Title (de)
KOMBINATION VON AKTUATOR UND VENTIL
Title (fr)
SOUPAPE ET SERVOCOMMANDE COMBINEES
Publication
Application
Priority
US 9717956 W 19971006
Abstract (en)
[origin: WO9918381A1] A valve (2) and actuator (3) in combination with a transportation tank (403, 1102) to operate off of low pneumatic pressures including a valve (2) and a valve body (4) with a tank end (5), a valve seat (23, 24) near the tank end (5) of the valve body (4), the valve seat having a value sealing surface (23-25); a stem chamber (7) extending through the valve body (4), the stem chamber (7) having an actuator port (22), a seat port (21), and an outlet port (8); a valve stem (13) slidably positioned in the stem chamber (7), the valve stem (13) having a plug end (14) and a plug (17) attached to the plug end (14), the plug (17) having a plug sealing surface (25, 26) to sealingly contact the valve sealing surface (23, 24); an actuator (3) has a hollow housing (100) with a valve end (10), the valve end (10) attached to the valve body (4); a plurality of piston assemblies (103), each having a piston (104) slidable in the housing (100) and a partition (105) fixed in the housing (100), the piston (104) and the partition (105) defining an actuator chamber (107).
IPC 1-7
IPC 8 full level
F16K 27/07 (2006.01); F16K 31/122 (2006.01)
CPC (source: EP)
F16K 27/07 (2013.01); F16K 31/1225 (2013.01)
Citation (search report)
See references of WO 9918381A1
Designated contracting state (EPC)
BE CH DE FR GB LI
DOCDB simple family (publication)
WO 9918381 A1 19990415; CA 2316261 A1 19990415; EP 1021672 A1 20000726
DOCDB simple family (application)
US 9717956 W 19971006; CA 2316261 A 19971006; EP 97944622 A 19971006