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Machine translation
1. (WO1980000625) PILOT OPERATED RELIEF VALVE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000625    International Application No.:    PCT/US1979/000250
Publication Date: 03.04.1980 International Filing Date: 18.04.1979
IPC:
F16K 17/10 (2006.01)
Applicants:
Inventors:
Priority Data:
943377 18.09.1978 US
Title (EN) PILOT OPERATED RELIEF VALVE
(FR) SOUPAPE DE SURETE COMMANDEE PAR UN DISPOSITIF
Abstract: front page image
(EN)A pilot operated relief valve for use on medium and high pressure vessels, conduits, and the like A unique two-stage, non-flowing pilot valve (5) operates a main relief valve (7) of substantially greater capacity. In a preferred embodiment the main valve is mounted directly onto the pressure vessel which is to be vented at a predetermined pressure. The pilot is preferably mounted closely adjacent to the main valve for operating communication therewith. A particularly unique ball (16) selector (24, 15, 76) provides means for testing first and second stages without operating the main valve, providing improved set point and reset or blow-down adjustments for the overall combination.
(FR)Une soupape de surete commandee par un pilote est utilisee sur des recipients, des conduites, et autres a moyenne et haute pression. Une soupape pilote a deux etages de non ecoulement (5) commande une soupape de surete principale (7) d"une capacite sensiblement plus grande. Dans un mode preferentiel de realisation la soupape principale est montee directement sur le recipient a pression qui doit etre mis a une pression predeterminee. Le pilote est monte de preference adjacent a la soupape principale pour commander la communication avec cette derniere. Un selecteur (24, 15, 76) de sphere (16) unique sert a essayer le premier etage et le second etage sans commander la soupape principale ameliorant le point de reglage et la remise a zero ou l"evacuation pour la combinaison de l"ensemble.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)