| Media: | Water |
|---|---|
| Temperature: | Low Temperature |
| Type: | Straight-through |
| Material: | Stainless Steel |
| Connection Form: | Flange |
| Pressure: | Low Pressure |
| Customization: |
|---|
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Introduction.
Soft sealing gate valves, industrial valves, and soft sealing gate valves have gate plates as their opening and closing components. The direction of movement of the gate plate is perpendicular to the direction of the fluid, and the gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve has two sealing surfaces, and the most commonly used mode is that the two sealing surfaces of the gate valve form a wedge shape. The wedge angle varies with the valve parameters, with a nominal diameter of DN50 to DN1200 and a service temperature of ≤ 200 ºC.
Soft sealing gate valves are divided into two types: rising stem soft sealing gate valves and non rising stem soft sealing gate valves. Usually, there is a trapezoidal thread on the lifting rod, which transforms the rotating motion into linear motion through the nut in the middle of the gate and the guide groove on the valve body, that is, the operating torque is converted into the operating thrust. When opening the valve, when the lifting height of the gate is equal to 1:1 times the valve diameter, the fluid channel is completely unobstructed, but this position cannot be monitored during operation. In actual use, the vertex of the valve stem is used as the mark, that is, the position that cannot be opened, as its fully open position. To consider the phenomenon of lockup due to temperature changes, it is usually done by turning back 1/2 to 1 turn at the top position as the fully open valve position. Therefore, the fully open position of the valve is determined by the position (i.e. stroke) of the gate. This type of valve should generally be installed horizontally in pipelines.
Feature.
1.Full Bore.| No | Part Name | Part Material |
| 1 | Body | Cast Iron/ Ductile Iron |
| 2 | Wedge | Cast Iron/ Ductile Iron+NBR/EPDM |
| 3 | Stem | 2cr13 |
| 4 | Bonnet | Cast Iron/ Ductile Iron |
| 5 | Packing | PTFE |
| 6 | Thrust Washer | 2Cr13 |
| 7 | Yoke | Iron |
| 8 | Packing | PTFE |
| 9 | Nut | 25# |
| 10 | Nut | 25# |
| 11 | Handwheel | HT(C.R) |
| 12 | Nameplate | Aluminium |
| 13 | Gasket | Graphite |
| 14 | Handwheel Nut | Ductile Iron |
| Size | 1/2″ | 3/4″ | 1″ | 11/4″ | 11/2″ | 2″ |
| A | 15 | 20 | 25 | 32 | 38 | 50 |
| H | 90 | 97 | 108 | 120 | 146 | 163 |
| L | 55 | 60 | 65 | 75 | 85 | 95 |
| D | 70 | 70 | 80 | 80 | 90 | 100 |
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