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| Product Name: |
NON-RISING STEM GATE VALVES
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| Related proudcts |
non-rising stem gate, |
| Specifications |
NON-RISING STEM GATE VALVES |
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Non Rising Stem Gate Valve Drawing
Non rising stem gate valves is also called rotary stem gate valve (also called non rising stem wedge gate valve). The valve stem nut is set on the gate, and the handwheel rotation drives the valve stem to rotate, so as to lift the gate. Generally, there are trapezoidal threads at the bottom end of the valve stem. Through the thread at the bottom end of the valve and the guide groove on the valve disc, the rotary motion is changed into linear motion, that is, the operating torque is changed into the operating thrust. When the valve is opened, when the lifting height of the ram is equal to 1:1 of the valve diameter, the fluid channel is completely unblocked, but in operation, this position cannot be monitored. In actual use, the apex of the valve stem is used as the mark, that is, the position that can not be opened is used as its full open position. In order to consider the lock phenomenon of temperature change, usually in the open to the top position, and then back 1 / 2 ~ 1 turn, as the full open valve position. Therefore, the full open position of the valve is ***ermined by the position of the RAM (i.e. stroke). |
| Company: |
MSTN International Technologies Co***ny
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| Contact: |
Michael Zhang |
| Address: |
Room A086, No.2 Bonded Port Area, Xinyingwan District, Yangpu Economic Development Zone, Hainan Province |
| Postcode: |
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| Tel: |
13021270021 |
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