buried welded ball valve

Product Description

Design and manufacture standards: API 6D, BS ***1, API **8, ASME B*6.*4
Face to face standards: ASME B*6.*0, API 6D, DIN ***2,
End flange dimension: ASME B*6.5(for NP ≤ *4); ASME B*6.*7 series B, API **5 or ASME B*6.*7 series A, MSS SP**4 (for NPS bigger than *4), ISO *****1, JIS B***8, BS ****7

BW end dimension: ASME B*6.*5
Socket-weld dimension: ASME B*6.*1
Test standards: API **8, AP*6D, BS ***5, ISO ***8

Constructions:
Two-piece body, Three-piece body
Double Block & Bleed
Bi-direction sealing
Seat and stem sealant injections
Anti-static device
Blow-out Proof Stem
Fire safe as per API**7
Full bore, Reduced bore

Operation: Lever, Gear, Electrical actuator, Pneumatic actuator
Buried Welded Ball Valve

The valve body by all the welding and carbon to enhance the composition of Teflon gasket, you can frequently operate, there are impurities and chemical substances in case of long-life operation. Fine stainless steel grinding balls can ensure many years of open and close freely and reliable operation.

Use of float structure, slope to ensure flexibility in the ball seals pressed on, even in the pressure instability, the valve can guarantee tight.
Anti-leak stem structure of the use of two "o" ring, so that stem turn freely and seal tightly.

Features:
Does not require maintenance, adjustment and lubrication, easy to install, at low running costs under the long-term reliable operation.
Stem can be lengthened, easy insulation.
Operating handle can be removed, changing the installed.
Valve body casting non-heavy and unreliable.
Installation adjustment, was very easy.