API6d Forged Steel Trunnion Mounted Ball Valve (Q47)

Product Description
1. Forged ball valve feature
Zhejiang Huatai forged ball valve, the forging material can ensure sufficient rigidity and strength under maximum rated operation pressure without inherent flaw of cast. Enough wall thikness of separate body and adaptation of high strength tie bolts are convenient for valve maintenance and sufficient to bear the stress of pipe. The internal parts of valve are carefully designed and selected to ensure reliability under all kinds of work condition.
2. Anti-fire safe design
When the trunnion ball valve be used normally, its sealed by seat and ball surface, seat retainer sealed by O-ring and body, this is soft sealed and reliable sealing. When the seat and O-ring are burnt, the seat retainer and body will be sealed by expanded graphite. Thus act anti-fire safe purpose.
3. Anti-static device
In order to prevent friction among ball, stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident, in this ball valve, static-conduction spring is set between the stem and the ball, the stem and the body. Thus static electricity is conducted to ground and system safety is secured.
4. Free leakage of body Sealed construction

The connective position of valve body and bonnet is double sealed by gasket and O-ring, on this base, such factors as fire, high temperature, shock and uneven opening or closing of the torque all can't induce external leakage.
5. Low torque in operation
The self-lubricated bearings are installed at the friction of stem, resulting in wear resistance, fiexibility of operation and low torque.
6. Emergency sealing
Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve. When sealing of stem or seat is damaged to induce leakage, the compound can be used to do the second time sealing. A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance. The top of the compound injection valve is the connector for fast connection with compound injectiProduct Description

Applicable standards:
Design: API 6D, API608, ANSI B16.34
Face To Face: API 6D, ASME B16.10
Flange end: ANSI B16.5, ASME B16.47
Fire safe: API 607
Testing and inspection: API598, API6D

Forged steel Ball Valve
Size: 1/2" to 2"
Pressure: 150LB - 1500LB
Body material: A105, F304, F316, F304L, F316L
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 90 degree opening or close
Detachable seat PTFE/RPTFE
END: RF, BW, SW
Applicable temperature: -196 -540
Supply Air: 1Bar to 8Baron gun.