Electric fixed formula Ball Valve Product Overview: Q947F American Standard electric fixed formula ball valve is a high performance ball valve tiandun the company's new R & D's, applicable to long-distance pipeline and general industrial pipelines, its strength, safety resistance, resistance to harsh environmental resistance, etc. at design time carried out a special consideration, applicable to all kinds of corrosive and non-corrosive media. It is compared with a floating ball valve, when work, the force valve before the the fluid pressure on the sphere generated all the passed to the bearings, does not make the the sphere to the the valve seat mobile, and thus the valve seat will not to withstand is too large of pressure, so fixed formula Ball Valve 's torque is small, a small the valve seat deformation, stable sealing performance, long service life, suitable for high pressure, large-caliber occasions. Advanced's of the spring the pre-valve seat assembly, having the self-tightening characteristic, to achieve upstream sealing. Every valve there are two valve seats, each direction able to seal, and thus the installation does not flows to restriction, is bi-directional. Electric fixed formula ball valve performance: 【Structure Features】 having a full channel, an emergency seal, fireproof and other characteristics. [Full Bore] valve flow channel hole diameter is consistent with tubes and radial diameter, more in line cleaning. 【Obstructive with the excretion】 the valve is in the closed state when the, on the downstream side of the valve seat make the fluid blocking the, Jaeger governance matter of the valve body the middle cavity of can be excretion, voiding apparatus as follows function: ① ex ante can be Inspect the seat whether the leaks injury in; ② to reduce the medium Replace the pollution on the the valve of;