Extension lever gate valve
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Product Description
The extension rod gate valve is a kind of valve equipment on the industrial pipeline, which has the function of opening, closing and adjusting the flow. Its design features include easy to use, easy to install, good sealing, simple structure, easy maintenance and so on. Extended rod gate valve is composed of valve body, valve cover, gate plate, valve stem, hand wheel and other parts. The design of the extended rod is to make the operation more convenient, which can be operated remotely in the pipeline, and is suitable for deep buried pipelines and other special occasions. The main materials of this valve include gray cast iron, ductile iron, copper alloy, steel, etc., according to the specific conditions of use to choose the right material to ensure good corrosion resistance and mechanical strength. The extended rod gate valve has reliable sealing performance and is suitable for pipelines with corrosive media such as high temperature and high pressure. It has good sealing performance and flow control performance. It is widely used in pipeline systems with different media such as water, gas, and oil.
Structural features
(1) the flow resistance is small. The internal medium channel of the valve body is straight, the medium flows in a straight line, and the flow resistance is small.
(2) Save effort when opening and closing. Compared with the cut-off valve, because whether it is open or closed, the direction of movement of the ram is perpendicular to the direction of the medium flow.
(3) The height is large and the opening and closing time is long. The opening and closing stroke of the gate is large, and the lowering is carried out by the screw.
(4) water hammer phenomenon is not easy to produce. The reason is the long closing time.
(5) The medium can flow in any direction on both sides and is easy to install. Gate valve channels are symmetrical on both sides.
(6) The structural length (the distance between the two connecting end faces of the housing) is small.
(7) the sealing surface is easy to wear, affecting the service life. When opening and closing, the two sealing surfaces of the gate and the valve seat slide with each other, which is easy to produce abrasion and wear under the action of medium pressure, which affects the sealing performance and shortens the service life.
8) The price is higher. There are many contact sealing surfaces, and the processing is more complicated, especially the sealing surface on the gate seat is not easy to process, and there are many parts,
(9) The form is simple, the structure length is short, the manufacturing process is good, and the scope of application is wide.
(10) Tight structure, good valve rigid parts, smooth passage, small lumens, stainless steel and hard alloy sealing surface, long service life, PTFE packing, reliable sealing, light and flexible operation.
(Unit: mm)
Nominal diameter | Structure length | H | Bolt |
| |||||||
10Kg | 16Kg | Reference Weight | |||||||||
Diameter of center circle of screw hole D | Bolt hole diameter | Quantity | Thread specification | Diameter of center circle of screw hole D | Bolt hole diameter | Number | Thread specification | ||||
40 | 165 | 170 | 110 | 19 | 4 | M16 | 110 | 19 | 4 | M16 | 7 |
50 | 178 | 185 | 125 | 19 | 4 | M16 | 125 | 19 | 4 | M16 | 9 |
65 | 190 | 205 | 145 | 19 | 4 | M16 | 145 | 19 | 4 | M16 | 11 |
80 | 203 | 310 | 160 | 19 | 8 | M16 | 160 | 19 | 8 | M16 | 16 |
100 | 229 | 340 | 180 | 19 | 8 | M16 | 180 | 19 | 8 | M16 | 27 |
150 | 267 | 430 | 240 | 23 | 8 | M20 | 240 | 23 | 8 | M20 | 50 |
200 | 292 | 520 | 295 | 23 | 8 | M20 | 295 | 23 | 12 | M20 | 80 |
250 | 330 | 545 | 350 | 23 | 12 | M20 | 355 | 28 | 12 | M24 | 120 |
300 | 356 | 660 | 400 | 23 | 12 | M20 | 410 | 28 | 12 | M24 | 160 |
400 | 406 | 915 | 515 | 28 | 16 | M24 | 525 | 31 | 16 | M27 | 280 |
500 | 457 | 1110 | 620 | 28 | 20 | M24 | 650 | 34 | 20 | M30 | 585 |
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Tianjin Hualida Valve Co., Ltd.
Address: Tianjin Jinan Industrial Development Zone
Mobile Phone: +86 15022758886
Website: www.hualidavalve.com
Mailbox: hualidavalve@163.com
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