What is American standard forged steel ball valve

American Standard forged steel ball valve is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines. Its strength, safety, harsh environment resistance, etc. have been specially considered in the design, applicable to all kinds of corrosive and non- Corrosive media. Compared with the floating ball valve, when it works, the force generated by the valve fluid pressure on the ball body is transmitted to the bearing.

American standard forged steel ball valve is widely used in the cutting off or circulation of the medium of food pipeline, medicine, petroleum, chemical industry, natural gas, steel, environmental protection, papermaking and other transmission pipelines. The device can also be injected with a corresponding cleaning agent or lubricant to clean the sealing surface.

American standard forged steel ball valve features:

1. Operational effort: The ball is supported by upper and lower bearings, which reduces friction and eliminates the excessive torque caused by the huge sealing load caused by the inlet pressure pushing the ball and the seal seat.

2, reliable sealing performance: PTFE single material sealing ring embedded in the stainless steel valve seat, metal valve seat end with a spring to ensure that the sealing ring enough pre-tightening force, the valve in use during the sealing surface wear, under the action of the spring The valve continues to guarantee good sealing performance.

3. Fireproof structure: In order to prevent the occurrence of sudden heat or fire, the PTFE seal ring is burned and a large leakage occurs, which encourages the fire, and sets a fireproof seal ring between the ball body and the valve seat. When the seal ring burns, Under the action of the spring force, the valve seat seal ring is rapidly pushed onto the ball body to form a metal and metal seal, which plays a certain degree of sealing effect. The fire resistance test meets the requirements of APl6FA and APl607 standards.

4. Automatic Pressure Relief Function: When the medium pressure of the valve cavity stagnates abnormally and exceeds the preload of the spring, the valve seat retreats from the sphere to achieve the effect of automatic pressure relief, and the valve seat is automatically reset after pressure relief.

5. Drainage piping: The upper and lower parts of the valve body are provided with a drain å­‘L to check whether the valve seat is leaking. In the work, when the valve is fully open or fully closed, the pressure in the middle chamber can be removed and the packing can be replaced directly; The cavity retentate reduces the contamination of the valve by the medium.

More knowledge: forged steel ball valve / bi-directional butterfly valve / high pressure regulating valve