Valve installation and maintenance can not be underestimated

Valve installation and maintenance should note the following: handwheel, handle and drive mechanism does not allow for lifting use, and non-collision. Gate Valve should be mounted vertically (ie the stem in a vertical position, the hand wheel at the top). Gate valve with bypass valve in the open before you open the bypass valve (opening force to balance imports and exports and reduce the pressure). With the drive mechanism of the valve, according to product instructions required to install. If the valve is turned on and off frequently use monthly lubrication at least once. Valve is used as a cut-off media, direct in the fully open the entire circulation of the media running minimal pressure loss. Valve usually do not need to open and close frequently, and keep the gate fully open or fully closed condition. Does not apply to a regulator or throttling. In the local conditions can cause vibration of the gate for the high-speed flow of medium, ram, vibration may damage the gate and seat sealing surface the throttle damper will suffer erosion of media. From the structural form, the main difference is that the sealing element in the form of. Sealing element in the form of the gate valve is often divided into several different types: wedge gate valves, parallel gate valve, parallel Gate Valve, Wedge double plate gate, etc.. The most commonly used form of wedge gate valve and parallel gate valve.Gas Oven Valve

The role of this type of valve is only allow the medium to flow in one direction, and stop the flow direction. Usually the valve is automatically work in a direction of flow of fluid under pressure, the valve opens; fluid flow in opposite directions, from the coincidence of the valve role of fluid pressure and the valve on the valve seat, thereby cutting off the flow. Check them belonging to this type of valve, which includes a swing check valve and lift check valves. Swing Check Valve ordinary hinge, like there is a door flap valve against the seat tilt surface. In order to ensure that the valve every time to reach the appropriate location of the seat surface, the valve design in the hinge mechanism, so that the valve has sufficient swing space, and a real flap valve, full contact with the valve seat. All valve can be made of metal, leather, rubber, can also be embedded in the metal or synthetic cover, depending on the use of performance requirements. Swing check valve in the fully open position, virtually unimpeded fluid pressure is relatively small, so the pressure drop through the valve. Lift check valve valve seat sealing surface located in the body. This valve, in addition to the valve is free to lift, like the rest of the shut-off valve as the fluid pressure valve seat sealing surface lift the medium return valve seat valve down and cut off the flow.Stove Valve