Diaphragm valve diaphragm valve is composed of valve shell and equivalent diaphragm valve core, its working mechanism is composed of the diaphragm movement. In the middle of the valve shell has a sealing seat, diaphragm through the handwheel operation lift to open and close the flow channel. The internal

The functions and features of the check valve check valve is a kind of force according to the medium itself automatically opening and closing of the valve. The check valve is designed to prevent the reverse flow of medium. When the water flow in the opposite direction, the check valve is closed.

The butterfly valve with the valve body and valve stem for shaft disc valve core. Simple structure, sealing surface spacing is small, easy to operate, good flow regulating performance. In general, it is hard to completely sealed fluid in a closed state, usually used in large diameter and low pressure gas.

For the spherical ball valve core, therefore calls ball valve. In general, the ball core is a metal, but the seat mostly non-metallic (ptfe). Operating mode is also similar to cock, the handle can rotate for 90, but compared with the cock, valve seal area is small, the operating torque is small

For the spherical ball valve core, therefore calls ball valve. In general, the ball core is a metal, but the seat mostly non-metallic (ptfe). Operating mode is also similar to cock, the handle can rotate for 90, but compared with the cock, valve seal area is small, the operating torque is small.