EP 1000282 A1 20000517 - BALL VALVE WITH REMOVABLE BONNET AND CARTRIDGE UNIT
Title (en)
BALL VALVE WITH REMOVABLE BONNET AND CARTRIDGE UNIT
Title (de)
KUGELVENTIL MIT DEMONTIERBAREM DECKEL UND KARTUSCHENEINHEIT
Title (fr)
ROBINET A BILLE AVEC ELEMENTS TETE ET SIEGE AMOVIBLES
Publication
Application
Priority
- FR 9806922 A 19980528
- IB 9901069 W 19990528
Abstract (en)
[origin: FR2779203A1] A ball valve (10) includes a bonnet (18) and a removable insert assembly in which a valve ball (40) and opposed seat rings (46) are contained within a cartridge (20) of separable shells (20a, 20b). Cylindrical spring seals (48) of resilient and impervious high density graphite or silicon rubber are mounted on a reduced diameter length of each seat ring. The spring seals (48) are compressed between shoulders on the seat rings (46) and facing annular recessed surfaces in the cartridge and urge the seat rings into dynamic sealing contact with the valve ball (40). The spring seals (48) also provide static sealing at the interface of the seat rings (46) and the cartridge (20). Connecting fittings on mating surfaces of the bonnet (18) and the insert assembly enable the assembly to be completely removed from the valve body with the bonnet (18) for easy access for repair or replacement of components within the cartridge.
IPC 1-7
IPC 8 full level
F16K 5/20 (2006.01)
CPC (source: EP)
F16K 5/202 (2013.01)
Citation (search report)
See references of WO 9961824A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IE IT LI LU NL PT SE
DOCDB simple family (publication)
FR 2779203 A1 19991203; AU 4054099 A 19991213; EP 1000282 A1 20000517; WO 9961824 A1 19991202
DOCDB simple family (application)
FR 9806922 A 19980528; AU 4054099 A 19990528; EP 99923785 A 19990528; IB 9901069 W 19990528