China 2 Inch Double Female Brass Ball Valve Manufacturers, Suppliers, Factory

The wave type hard seal butterfly valve produced by milestone Industrial Co. Ltd. adopts stainless steel sealing ring. The elastic sealing ring has three eccentric contact with the butterfly plate, which realizes the effect of separating the sealing surface at the moment of opening and sealing at the moment of closing, so as to prolong the service life and achieve the best sealing performance. Therefore, wave type hard seal butterfly valve is widely used in metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas, water supply and drainage and other corrosive medium pipelines with medium temperature ≤ 550 ℃. Wafer Type Hard Seal Butterfly Valve is the best device to regulate flow and cut off fluid.

Pneumatic flanged butterfly valve can be divided into elastic seal and metal seal according to the sealing form. The elastic seal materials include NBR and fluororubber, the hard seal butterfly valve is multi-layer metal hard seal, which has the advantages of elastic seal and excellent sealing performance at low temperature. Compared with the clip type butterfly valve, the pneumatic flanged butterfly valve has higher pressure resistance. Generally, the flange type butterfly valve is used in the high pressure condition.

In plunger globe valves, valve clack and valve seat are designed by the plunger principle. The valve clack is polished into a plunger and connected to the valve stem. The sealing is achieved by two elastic seal ring that sheathed on the plunger. The two elastic seal ring are separated by a sleeve ring and the rings around the plunger are held tight by a load applied to the bonnet by the bonnet nut. Globe valves are mainly used for opening and closing flow.

The industrial gate valve is mainly used to cut off and connect the medium in the pipeline. The industrial gate valve is a kind of valve used in the pipeline. There are only two forms of industrial gate valve in the pipeline, which are fully open or fully closed, and can not be semi open, and can not be used to control the medium flow.

A water main gate valve is generally used to completely shut off fluid flow or, in the fully open position, provide full flow in a pipeline. Thus it is used either in the fully closed or fully open positions. A water main gate valve consists of a valve body, seat and disc, a spindle, gland, and a wheel for operating the valve. The seat and the gate together perform the function of shutting off the flow of fluid.

The plate of pneumatic actuator flange butterfly valve can be opened and closed by rotating 90 degrees. The operation is simple and the airtightness is good.