Stainless steel flanged plunger valve U41S

Plunger valve by the valve body, valve cover, stem, plunger, hole frame, seal ring, hand wheel and other components. When the hand wheel rotation, through the stem to drive the plunger in the middle of the hole frame up and down reciprocating motion to complete the valve opening and closing functions. In the valve between the piston and the seal ring with interference fit, by adjusting the gland bolts in the flange, so that the seal ring generated by the lateral force and the valve body in the hole surface and cylindrical seal, thus ensuring the valve Sealing, to eliminate the internal and external leakage, while the valve opening torque is small, to achieve rapid opening and closing the valve.

The plunger valve is closed by a stainless steel plunger, the upper and lower two elastic seal ring and a metal frame composed of sealing effect by the plunger and seal ring to achieve close cooperation with the plunger plug in the two seals, sealing area Plunger in the sealing ring in the slow moving, almost no wear contact surface, closed, the plunger into the next seal, cut off the flow channel; open, the plunger, although the separation from the lower seal Circle, but still hidden in the upper ring, to maintain isolation with the outside world, will not leak.

As the surface of the plunger after high-precision cylindrical grinding machine processing. Seal ring with strong elasticity, high wear resistance of the new non-toxic sealing material, so sealed and reliable, durable. Thereby improving the service life of the plunger valve.

1. Thread connection or socket welding connection straight-through piston valve

1, flow: straight-through

2, the valve body, the valve cover for the cast steel or cast steel, plunger, stem, isolation ring for the stainless steel. The sealing ring is made of flexible graphite or polytetrafluoroethylene

3, sealing ring, isolation ring and valve cover by the valve body bolts, nuts, spring pads pressed

4, by the plunger diameter and sealing ring to achieve through the seal

5, the valve opening and closing speed is slower

Two. For the connection of straight-through-type plunger valve

1, flow: straight-through

2, the valve body, the valve cover material for the cast steel

3, other structural features with the serial number

3. Flange connection straight-through plunger valve

1, flow: straight-through

2, the valve body, the valve cover for the cast steel or cast steel, plunger, stem, isolation ring for the stainless steel. The sealing ring is made of flexible graphite or polytetrafluoroethylene

3, sealing ring, isolation ring and valve cover by the valve body bolts, nuts, spring pads pressed

4, by the plunger diameter and sealing ring to achieve through the seal

5, the valve opening and closing speed is slower

Four. Flange connection pressure balance straight type plunger valve

1, flow: straight-through

2, the valve body, valve cover for the cast steel: stem, plunger, isolation ring for the stainless steel; sealing ring, flexible graphite or PTFE packing; stem nut for the copper alloy

3, sealing ring, isolation ring on the valve body and bonnet connection bolts, nuts and spring washers pressed

4, by the plunger diameter and sealing ring diameter to achieve sealing

5, the plunger is hollow, the upper and lower cavity with through-hole, stem with a gland and nut connection, so that the plunger chamber pressure balance, opening and closing effort. However, the stem must have a seal and packing seal

6, the valve opening and closing speed is slower