Tianjin KXC Metal Products Co., Ltd.

In the 1930s, the United States invented the butterfly valve . It was introduced to Japan in the 1950s, and it was only widely used in Japan in the 1960s. However, it was promoted in China after the 1970s. In the world, gate valves generally above DN300 mm have been replaced by butterfly valves. Compared with the gate valve, the butterfly valve has the advantages of short opening and closing time, small operation moment, small installation space and light weight.Compared with gate valves, butterfly valves have short opening and closing time, small operating torque, small installation space and light weight. The disadvantage of the rubber soft-seal butterfly valve is that when used for throttling, cavitation will occur due to improper use, causing the rubber seat to peel off and damage. Therefore, metal hard-sealed butterfly valves have been developed internationally, and the cavitation area has been reduced. In recent years, China has also developed metal hard-sealed butterfly valves.

The butterfly valve is a valve that uses a circular butterfly plate as a switch part and rotates with the valve stem to open, close and adjust the fluid passage. The butterfly plate of the butterfly valve is installed in the direction of the pipe diameter. The butterfly plate rotates around the high pressure, and the rotation angle is between 0° and 90°. When the rotation reaches 90°, the valve is in a fully open state. Generally, the life of the seal seat is 15-20 years for rubber and 80-90 years for metal under normal conditions. However, the correct selection depends on the requirements of the working conditions. The relationship between the opening of the butterfly valve and the flow rate basically changes linearly. If it is used to control flow, its flow characteristics are also closely related to the flow resistance of the piping. For example, two pipelines are installed with the same valve diameter and form, but the pipeline loss coefficient is different, the flow rate of the v

Hydraulic Control Valve KXC   Hydraulic control valves  are used to contain and transfer the flow and pressure of hydraulic fluid in hydraulic systems. There are many different designs hydraulic control valves , including check, cartridge, directional, relief, safety, shut off and solenoid valves. Hydraulic control valves come in a variety of sizes and pressure ratings. In an open position, hydraulic valves  permit the flow of fluid; when in a closed position, they prevent flow. Hydraulic control valves are used to prevent improper levels of pressure and fluid in hydraulic systems. The basic mechanics of all hydraulic control valves essentially remains the same; each is usually cylindrical and occasionally contained in a small square-shaped house, placed at the mouth of a pipe or on the head of a pump and contains a seat in the opening that cradles the plunger that may be a variety of shapes and sizes. These various styles are mass produced in general cavity sizes, as well as being spe

Ductile Iron Check Valve Check Valve Features Small in size, light in weight, compact in structure and easy in maintenance. Two torsion springs are exerted on each of the valve discs, which close the discs quickly and automatically. The quick-close action prevents the medium from flowing back and eliminates water hammer effect. The valve is short in length, so that it is rigid and easy to install. The valve is tightly sealed with no leakage. The valve can be installed either horizontally or vertically in the piping system. Check Valve Specifications : Size:DN50-DN300 Pressure: PN16 Standard: DIN 2501 PN6/10/16, BS5155 More information about KXC Check Valve  please click here