opening and closing a gate valve is ram, ram movement direction perpendicular to the direction of flow and the valve can only be fully open and close, not to adjust and throttling. Sealing face has two gate, two of the most commonly used mode gate valve sealing surface form a wedge, the wedge Angle vary with the valve parameters, usually for 5 °, medium temperature is not high for 2 ° 52 '.

wedge gate valve of the damper can be made into a whole, is called a rigid disc; Can also make it generates trace of deformation of ram, in order to improve the manufacturability, make up for the sealing surface Angle in the process of our processing deviation, this damper is called elastic disc. Gate valve is closed, sealing surface can only rely on medium pressure to seal, that depend on medium pressure, the disc will be to the other side of the valve seat sealing surface pressure to ensure that the seal face seal, this is the seal.

most is adopt compulsory seal gate valve, the valve is closed, to rely on outside force forced the ram pressure to the seat, to ensure the sealing surface sealing. The gate valve gate, linear motion, with the stem called lifting lever gate, also called rising stem gate valves. Usually in lifting lever on the trapezoidal thread, through the valve at the top of the nut and guide groove on the valve body, the rotation movement into linear motion, which is the operating torque thrust into operation.

open valve, when the gate hoisting height is equal to valve size 1:1 times, fluid channels open completely, but at runtime, the position cannot be monitored. Actual use, is the stem apex as a sign, that is fixed position, as its full open position. To consider locking phenomenon in a temperature change, usually in the open to the vertex positions, pour 1/2 - back 1, as the full open position of the valve. As a result, the valve fully open position, according to the location of the gate is the trip. Some gate Industrial Valves, the valve stem nut is located in the gate, the hand wheel rotation drive the valve rod rotation, and make the disc, the valve is called rotating lever gate, or non-rising stem gate valves.

If you are sourcing for product development or manufacturing operations, you won't miss Shenzhen Mech Valve Trading Co., Ltd.'s list of offer.
To live healthy, you need to eat healthy; to eat healthy, you need to think healthy; to think healthy, you need to read health; to read healthy, you need to follow Mech Valve.
Shenzhen Mech Valve Trading Co., Ltd. provides professional , technology and human expertise clients need to find trusted answers. Go to Mech Valve for answers.
os&y valve rising stem gate valve are primarily used for cast iron valve.
Shenzhen Mech Valve Trading Co., Ltd. can promise you that we never conceded on the quality standards of our products.