Gate is one of the most common open/close, use of ram ( The opening and closing, in the gate opening and closing a called ram or gate, brake block called ram block) To connect ( Full open) Or truncation ( Seated) Line in the medium. It does not allow for river closure, use should be avoided in the open gate trace, because of the erosion of high-speed flow of medium will accelerate the damage of the sealing surface. Double DE gate at the channel center line perpendicular to the gate of the one-sided as lifting movement, like gate cutting medium pipeline, so as the gate valve. Gate valve type, according to the sealing surface configuration can be divided into wedge type gate valve and parallel sluice gate valve gate, wedge gate valve gate can be divided into: single gate type, double disc and flexible disc; Parallel slide gate Industrial Valves can be divided into single ram and double ram. According to the threads of the valve stem position, can be divided into rising stem gate valves and dark bar gate Industrial Valves two kinds. Work principle, turn the handwheel by hand wheel and screw thread of the valve stem of the advance and retreat, lifting or lowering the valve plate connected to the valve stem, reach the role of opening and closing. The advantages of gate valves: 1, open and close more effort. 2, small fluid resistance, sealing surface Chong brush and erosion by the medium. 3 the flow direction of medium, not restricted, disturbed flow, reduce the pressure. 4, the structure of the form is simple, short length, good manufacturing technology, wide application scope. disadvantages: 1, appearance size is larger, open needs certain space, open and close time is long. 2, easy cause surface erosion and abrasion, maintenance is difficult. 3, the structure is complex.
An increasing dependence on the use of water gate valve resilient valve has made numerous changes in the os & y valve fire protection industry over the past decades.
Shenzhen Mech Valve Trading Co., Ltd. looks forward for the meeting and the association with your esteemed company.
As the manufacturing procedure of flanged gate valve becomes more regulated, the costs to businesses will increase and the workforce will suffer as a result.