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| Product Name: |
Cut-throat price for pressure seal gate valve
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| Supply Ability: |
1000 Tons |
| Related proudcts |
gate valve, |
| Specifications |
36 |
| Price Term: |
FOB,CNF,CIF |
| Port of loading: |
China Port |
| Minimum Order |
1 pc |
| Unit Price: |
0~100,000USD |
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The closure member of the cast steel gate valve is the gate. The gate movement direction is vertical to the fluid direction. The gate valve can only serve for full open and full close, but cannot be used for regulating and throttling. The gate has two sealing faces. The two sealing faces of the most commonly-used gate valve form the wedge shape, and the wedge angle varies according to valve parameters, which is generally 50, and is 2¡ã52£§when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, which is called the rigid gate, and can also be made into the gate that can produce micro deformation, so as to improve the technology, and compensate for the deviation of sealing face angle produced during machining, which is called the elastic gate.
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The cast steel gate valve can be classified into the wedge gate valve and parallel gate valve. The wedge gate valve includes: single-gate type, double-gate type and elastic gate type. The parallel gate valve includes single-gate type and double-gate type. According to the thread position of stem, the gate valve includes rising stem gate valve and non-rising stem gate valve.
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When the cast steel gate valve is closed, the sealing face can only be sealed by medium pressure, i.e. the sealing face of the gate is pressed by medium pressure to the seat on the other side to ensure sealing of the sealing face, which is called self sealing. Most gate valves adopt compulsory sealing, i.e. when the valve is closed the gate shall be pressed to the seat through outside force to ensure sealing of the sealing face.
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The cast steel gate valve whose gate makes linear movement along with the stem is called the rising stem gate valve. Commonly, there is the trapezoidal thread on the rising stem. Through the nut at the top of the valve and the guide groove on the body, the rotation movement is turned into linear movement, that is, the operation torque is turned into operation thrust.
When the valve is opened, if the gate rising hei |
| Company: |
Shanghai KaiKe Valve Manufacturing Co., Ltd
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| Contact: |
Ms. Yolanda Yang |
| Address: |
K/26F No.728 Yan An West Road Huamin Empire Plaza Shanghai |
| Postcode: |
200050 |
| Tel: |
86 21 62117969 |
| Fax: |
86 21 62117900 |
| E-mail: |
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