Forged Steel Ball Valve

High pressure forged steel ball valve

High pressure forged steel ball valve is designed, selected, manufactured, tested, surface treated and painted in strict accordance with NACE standard of American Society of corrosion engineers in order to meet the requirements of cracking for vulcanization application under vulcanization environment according to the needs of users.

This series of ball valve not only has a wide range of materials, but also the color of internal parts is made of nickel plated 316 material, and the sealing ring is made of special polymer material. The valve is not only anti-corrosion, anti sulfurization, fire-proof, anti-static and good sealing performance, with a wide range of use pressure and temperature, full bore and reduced bore, and can be equipped with a variety of driving devices, which is an ideal choice for chemical industry, oil torch refining, natural gas production and transmission system.

Main functions:

When the medium with stagnant cavity in the valve is abnormally pressurized due to temperature change, the medium pressure pushes the valve seat away from the ball to achieve the effect of automatic pressure relief. After pressure relief, the valve seat automatically resets.

In addition to the general sealing, the special sealing structure of the valve seat can play an emergency rescue role in case of leakage due to the damage of the sealing ring.

When the seat sealing ring is burnt or softened due to fire or abnormal temperature. The operation of the valve is still reliable. At the same time, the valve seat and the ball form metal to metal, achieving temporary sealing effect, preventing further expansion of the fire, and meeting the requirements of ap16fa.

The valve seat can be checked for leakage by unscrewing the discharge device, and the retention in the middle cavity can be discharged to reduce the pollution of the medium on the valve side. Under the working condition, when the valve is fully open or closed, the packing box of the valve rod can be replaced.

PTFE packing and O-ring double seal are used for valve stem sealing, especially for gas medium. The high-quality SF self-lubricating bearing is adopted for the moving part of the valve rod, which makes the friction coefficient smaller and reduces the operating torque.

Forged steel fixed ball valve

The three-way connection forged steel fixed ball valve divides the valve body into three parts along the section perpendicular to the axis of valve channel at the two valve seats

It is symmetrically left and right along the central axis of the valve stem. It is mainly used to cut off, distribute and change the flow direction of the medium on the pipeline. Its large pivot structure ensures the accurate center position of the ball under high pressure and good operation performance of the valve; the standard valve seat adopts the spring structure to push the valve seat towards the ball to ensure good bidirectional sealing performance of the inlet and outlet; the middle cavity of the valve body can be discharged outward by using the self-contained drain valve; the pivot adopts the blow out protection structure to effectively prevent leakage; the low friction coefficient The bearing reduces the torque to the minimum, which is convenient for the opening and closing of the valve; the effective contact between the valve rod and the valve body makes the performance of the anti-static grounding device superior, etc. It has the advantages of excellent performance, high reliability, wide use and reasonable price. Applicable to: chemical, petroleum, natural gas, metallurgy, and other industries, as well as long-distance natural gas pipelines with hydrogen sulfide medium, many impurities and serious corrosion.