Qhov zoo tshaj plaws-tag nrho FKN valve & lub rooj zaum yog ib-thooj forged valve lub cev thiab lub rooj qhib tag nrho, 100 feem pua tau hloov pauv nrog National (NOV), haum tshwj xeeb rau National 7-P-50, 8-P -80, 9-P-100, 10-P-130, 12-P-160 thiab 14-P{{ 14}} av nkos.
Peb tus qauv valve yog muab nrog polyurethane inserts nyob rau 180 degree F drilling- av nkos kub. Peb kuj muab qhov tshwj xeeb kub-kub urethane compound ua ib qho kev xaiv rau high-temperature drilling tej yam kev mob rau 220 degree F thiab siab dua.
100 feem pua ntawm kev sib pauv nrog NOV Lub Hom Phiaj, Av nkos huab tais, TSC thiab lwm lub npe.
Loj muaj raws li hauv qab no.
API SIZE | Valve | Rooj | Ntxig | Caij nplooj ntoos hlav |
API 5 | 1561525 | |||
API 5M | 1561525 | 1561530 | 1561527 | 1560701 |
API 6 | ||||
API 6M | 1560995 | 1561450 | 1560587 | 1560701 |
API 7 | ||||
API 7M | 1560985 | 15614450 | 1560557 | 1560702 |












