EP 0972151 A1 20000119 - SAFETY EXCESS FLOW VALVE SYSTEM WITH ADJUSTABLE CLOSING FLOW RATE SETTINGS
Title (en)
SAFETY EXCESS FLOW VALVE SYSTEM WITH ADJUSTABLE CLOSING FLOW RATE SETTINGS
Title (de)
DURCHFLUSSBEGRENZUNGSVENTIL MIT EINSTELLBARER ABSCHLIESSDURCHFLUSSMENGE
Title (fr)
SYSTEME DE SOUPAPE DE SURETE DE LIMITATION DE DEBIT A POINTS DE CONSIGNE DU DEBIT DE FERMETURE ADAPTABLES
Publication
Application
Priority
- US 9806274 W 19980401
- US 4259697 P 19970401
- US 4745797 P 19970522
- US 99500997 A 19971219
Abstract (en)
[origin: WO9844283A1] The present invention relates to an excess flow valve system having a sliding poppet (11) within a chamber with an orifice at one end, wherein the closing flow rate settings can be adjusted. Precise adjustments can be made externally by turning a threaded member extending through the valve, which causes a retainer (37), threadably located on the member, to move laterally within the chamber. This movement causes an angled surface on the retainer to engage and slide in relation to a similarly angled surface on the poppet. As the poppet is urged toward the retainer by a coiled spring (25), the poppet is moved longitudinally within the chamber, either toward or away from the orifice. Turning the threaded member enables the maximum travel distance of the poppet, and therefore, the threshold flow rate of the valve, to be precisely set. Additional means for broadening the range of settings, without replacing the spring or changing the orifice size, can also be provided, such as spacers to change the spring tension and multiple phase settings on the valve housing.
IPC 1-7
IPC 8 full level
F16K 17/30 (2006.01)
CPC (source: EP KR)
F16K 17/30 (2013.01 - EP KR)
Citation (search report)
See references of WO 9844283A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9844283 A1 19981008; AU 6789498 A 19981022; BR 9807910 A 20000222; CN 1134603 C 20040114; CN 1251642 A 20000426; EP 0972151 A1 20000119; IL 132130 A0 20010319; KR 20010005948 A 20010115; NZ 500060 A 20020201; TR 199903301 T2 20000421
DOCDB simple family (application)
US 9806274 W 19980401; AU 6789498 A 19980401; BR 9807910 A 19980401; CN 98803860 A 19980401; EP 98913312 A 19980401; IL 13213098 A 19980401; KR 19997009025 A 19991001; NZ 50006098 A 19980401; TR 9903301 T 19980401