What are the advantages of a flanged plunger valve?
The structure characteristics of the plunger valve is composed of a stainless steel plunger, two elastic sealing ring and a metal frame, the sealing effect by the plunger and the seal ring is closely fitted to the plunger, inserted in the two sealing ring, the sealing area is far greater than the ordinary valve; switch plunger valve, the piston moves slowly in the the sealing ring, the contact surface is almost not wear off, the plunger is inserted into the lower sealing ring, truncated channel; open, although from the plunger seal, but still hiding in the ring, remain isolated from the outside, not to leak.The sealing ring is a science and technology product. It is the key component of the plunger valve. It consists of polytetrafluoroethylene, graphite and high elastic rubber. It can provide good sealing performance after millions of times of reciprocating movement test. Meanwhile, the valve has small opening moment, large sealing area, wide application medium, high temperature adaptability, reliable sealing, long service life, convenient maintenance and the like. Widely used in petroleum, chemical, power, pharmaceutical, food, textile, printing and dyeing, boilers, machinery and other industries.
Shanghai Guardian valve believes that the design and manufacture of flanged plunger valve is to solve the defects of the common stop valve.The general cut-off valve seal with blank root filling, cannot eliminate leakage and seal from the valve flap and valve channel or plane angle seal (metal seal), the sealing surface caused by abrasion between the metal leakage and maintenance difficulties.
Advantages of flanged plunger valves:In 1, the flange valve in the plunger and the seal ring used between the interference fit, by adjusting the gland in the flange bolts, the lateral force and the valve body sealing ring compression product in cylindrical hole surface and the plunger seal, thus ensuring the sealing performance of the valve, to prevent the internal leakage, and valve opening moments small, can realize the rapid opening and closing the valve;2, because the sealing ring adopts the strong rebound resistance and the abrasion resistance of the non-toxic new sealing material, has a long-term high temperature, high pressure without losing elasticity, so the sealing performance is reliable and durable.Extension of knowledge point:Flange plunger valve by the valve body, valve cover, stem, plunger, hole frame, ring, hand wheel and other components. When the hand wheel rotates, the plunger is driven to move up and down in the middle of the hole frame through the valve stem to complete the opening and closing function of the valve. Currently, flanged valves are widely used in petroleum, chemical, chemical, gas, gas, liquefied petroleum gas, HVAC and general industries
