2021-05-22
Forged steel stainless steel ball valve is mainly used for long-distance pipeline transportation of oil and natural gas and urban gas pipeline system. Due to the unique characteristics of long-distance pipeline valve, its ability to bear pipeline stress, safety, weather resistance and long-term reliability are fully considered in design;
1) Forged steel stainless steel ball valve is a kind of high temperature, wear-resistant hard seal ball valve. The maximum temperature is 425 °, The hardness coefficient is 65-70. The valve seat on both sides uses the spring force to make both sides of the valve seat tightly hold the ball center to play a sealing role. The sealing material of forged stainless steel ball valve is cemented carbide, and the spherical surface is spray welded. Such a high coefficient of hardness, between the valve seat and the valve body with graphite seal, so the temperature can withstand to 425 °。 The suitable temperature of forged stainless steel ball valve is 500 ℃, the valve body material should be molybdenum steel, the sealing material should be cemented carbide, and the sealing surface of the ball should be spray welded.
2) The valve body of forged steel stainless steel ball valve is made of forged steel, which can ensure its enough strength and rigidity under the maximum rated working pressure, without the defects fixed by the casting. The valve internals are carefully designed and selected to ensure the reliability under various working conditions. The split valve body has sufficient wall thickness and high strength connecting bolts, which is conducive to the maintenance of the valve and can withstand the stress of the pipeline.
3) Forged steel stainless steel ball valve adopts bottom mounted valve with inverted sealing structure, which can ensure reliable sealing at the packing. According to the needs of users, forged steel stainless steel ball valve can be designed to be suitable for the structure with solid particles, slurry and other media, and the structure with high temperature resistance. Forged steel stainless steel ball valve adopts movable metal seat structure with leaf spring preload, with reasonable sealing force design, flexible opening and closing, and reliable sealing.