Stem extension Pipeline Ball valve

Product Description

All-welded underground stem-extension ball valve: APPLICATION AREAS All welded underground stem-extension pipeline ball valve is mainly used in petroleum and gas industries. The anti-sulphur series are specially used for natural gas pipeline which contains hydrogen sulphide medium, a lot of impurities and corrosive substances. MAIN FEATURES （For detail please see “ high performance pipeline ball valve product introduction”） High performance all welded underground ball valve series, with features of great strength, reliable sealing, maintenance free and long life span. The stem-extension design can realize all handle operation on the ground, with many driving manners such as hand operation, pneumatic, hydraulic, pneumatic-hydraulic and electric to control or cut the medium. The assistant sealing device, exhaust valve (excess pressure protection device), relief valve are all fixed on the ground by pipelines so as for easy operation. For high performance intellectual type pneumatic-hydraulic linkage and electric-hydraulic linkage can designed to be pipe on-off device or emergency pipeline broken protection device (with pipeline broken cutting system), among which the pneumatic-hydraulic linkage is a type of auto type ball valve, no need of additive energy, as it can be driven by its medium pressure to open-close the valve. PRODUCT SPECIFICATIONS API 6D ASME B*6.5，DIN，JIS，etc. ASME B*6.*4 ASME B*6.*5 MSS SP**5 DN*0 to DN***0, PN1.6MPa to PN*5 MPa, temp: **6ºC~**0ºC. Materials: standard design: A**0 LF2, A**0 LF2, A**2 ***0+ENP, A**0LF2+ENP. Valve seat: VITON/RPTFE/NYLON/DEVLON/PEEK cryogenic design: A**0 LF*-M, A**0 LF*-M, A**2 ***0+ENP, A**0 LF2+ENP. Valve seat: VITON/RPTFE/NYLON/DEVLON/PEEK For more information, please call me or visit our website: http://*****/english/en/product/product.asp