Product Description
1. Low temperature side entry forged steel trunnion mounted ball valve is specially developed for cryogenic service. It adopts side entry split assembly and integral extended bonnet structure with forged machined body. It prevents cryogenic liquid from reaching stem packing. Energy is dissipated in extension section to protect valve from failure.
2. The ball is fixed by upper and lower trunnions, which prevents lateral displacement of ball under pipeline medium pressure and avoids seat damage, so as to greatly improve sealing performance.
3. The seat adopts spring preloaded structure to achieve tight contact and sealing with ball. The structural design delivers low operating torque and stable sealing performance. The valve can operate stably under long term cryogenic conditions with long comprehensive service life and low equipment failure rate.
4. The product design meets requirements of API 608, API 6D of American Petroleum Institute and BS 6364 of British Standard. It is fully compliant with ASME B16.34 issued by American Society of Mechanical Engineers.
5. Various materials for body and bonnet together with complete set of valve trim are available for selection according to requirements.
6. It is widely used as shut off device for medium pipelines of ethylene, liquefied natural gas, liquid oxygen, liquid hydrogen and other low temperature energy media to realize medium cut off and isolation.
Features & Benefits
1. Ultra low temperature sealing system：Adopts special cryogenic reinforced lip type sealing structure, suitable for ultra low temperature working condition down to ‑196℃. It features stable sealing resilience and resistance to temperature cycling, zero leakage during long term operation, low friction resistance in opening and closing and light operating torque.
2. Stem safety structure：Bottom mounted anti blowout stem design achieves structural self locking to eliminate risk of stem ejection. It thoroughly avoids stem drop under high pressure and low temperature conditions, and maintains sealing integrity even under fire conditions.
3. Fire safe and anti static safety：Equipped with fire safe and anti static structure, applicable for soft seal valves.
4. Visual status indication by handle：The stem adopts flat head positioning structure. Handle marks correspond one to one with valve open close status. Operators can judge valve on off status intuitively and accurately to avoid operation deviation.
5. Dual position locking design：Dedicated locking holes are arranged at full open and full close limit positions of the valve. Padlock device can be fitted to effectively prevent unauthorized operation and manual misoperation and ensure stable operation of pipeline system.
6. Design advantages：Compact and streamlined overall structure with light weight for easy assembly and disassembly. It requires little routine maintenance with low operation cost, featuring sensitive opening closing and low running noise.
