| Model： | ||
| Standard or Nonstandard： | Standard |
|
| Pressure： | LowPressure |
|
| Material： | GreyIron |
|
| Media： | Water |
| PriceRange： | ||
| Structure： | GateNeedle |
|
| Power： | Manual |
|
| Temperature of Media： | NormalTemperature |
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Rising stem gate valve is a kind of valve that open and close by the gate. The gate can be only fully open or fully close. It can not be used for regulating or throttling. The gate has two sealing surface, and these two sealing surface are usually formed in wedge. This gate can be regarded as a whole named rigid valve.
The rising stem gate valve is the valve with trapezoidal thread. By the top nuts of the gate and the guide on the body, it turned the rotary motion into linear motion. That means to turn the operation torque to the operation thrust. When the gate is open and the increasing up going height of the gate equals to the diameter of the gate, the fluid channel is completely unimpeded. In practice, they use the apex of the stem as the symbol of its full open. Ductile iron, cast, stainless steel are the material which is mostly used in the body; the stem is usually made by stainless steel; the nuts are made by cast brass or aluminum bronze. The rising stem gate valve is mostly applied in construction, petroleum, chemical, electric power, and ship industry.
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