Sell DIN Ball Valve

Description

Applicable standards: 
Design: API 6D, API**8, ANSI B*6.*4 
Face To Face: API 6D, ASME B*6.*0 
Flange end: ANSI B*6.5, ASME B*6.*7 
Fire safe: API **7 
Testing and inspection: API**8, API6D 

Forged steel Ball Valve 
Size: 1/2" to 2" 
Pressure: **0LB - ***0LB 
Body material: A**5, F**4, F**6, F**4L, F**6L 
Operate: Manual, gear box, electric, neumatic, hydraulic atuators 
END: RF, BW, SW&NPT 

Design description 
Double block and bleed design(DBB) 
Double stem sealing. The ball can maintain pressure sealing of pipeline when it is closed or fully opened. 
Shorter upper sleeve reducces bearing load and operation torue 
Limit device ensures the accurate opening and closing position of the valve 
The vall and stem are separated so as to reduce stem load. The stem adopts anti-blow-out design. 
The sealing surface is inserted into te metal seat by polymer or plastic 
The metalbacked self-lubricating PTFE bearing and PTFE thrust washers 
Reduce the opening torque and prolong the service life of the valve. Stem leakage can be prevented through the emergency grease fitting. 

Nickel and phosphor treatment to the parts can enhance the anticorrosive performance. 
The fireproof design of metal wound gasket compased of stainless steel and graphite can prevent external leakage. 
Anti-static design 
Floating/Trunnion Type 
Full bore/Reduced bore 
Bolted cover/welded cover 
Turn *0 degree opening or close 
Detachable seat PTFE/RPTFE 
END: RF, BW, SW 
Applicable temperature: ***6 ***0 
Supply Air: 1Bar to 8Bar