Features of cast iron rising stem gate valve
1. Compact structure, reasonable design, good valve rigidity, smooth passage and small flow coefficient.
2. The sealing surface is made of stainless steel and hard alloy, with long service life.
3. Use flexible graphite packing, reliable sealing, light and flexible operation.
4. The driving mode is manual, pneumatic, electric, gear transmission.
5. The structure is elastic wedge single gate, rigid wedge single gate and double gate.
Precautions when using gate valves
1. Avoid being used as a regulating valve: A gate valve can only be used for full opening or closing, not for regulating flow and pressure. If it is used as a control valve, it will cause serious wear and tear of the valve, affecting its tightness.
2. Thermal insulation measures: The high-pressure gate valve needs to maintain good thermal insulation measures during use to avoid thermal stress caused by temperature difference in the valve body, valve stem and valve cover, resulting in deformation or stuck.
3. Uniform heating: The high-pressure steam gate valve needs to be heated uniformly when it is put into operation to prevent the uneven expansion of the valve stem, gate and valve body, resulting in deformation and jamming.
4. Regular inspection and maintenance: Including visual inspection, sealing inspection, operability inspection, cleaning maintenance, lubrication maintenance, protective measures and regular maintenance. These measures ensure the normal operation and prolonged service life of the gate valve.
Product parameters
| DN | L | a | d | c | x-n | T | f | g |
| 50 | 150 | 50 | 165 | 125 | 4-φ19 | 99 | 19 | 3 |
| 65 | 170 | 65 | 185 | 145 | 4-φ19 | 118 | 19 | 3 |
| 80 | 180 | 80 | 200 | 160 | 8-φ19 | 19 | 3 | 132 |
| 100 | 190 | 100 | 220 | 180 | 8-φ19 | 3 | 156 | 19 |
| 125 | 200 | 125 | 250 | 210 | 8-φ19 | 3 | 184 | 19 |
| 150 | 210 | 150 | 285 | 240 | 8-φ23 | 3 | 211 | 19 |
| 200 | 230 | 200 | 340 | 295 | 8-φ23/12-φ23 | 20 | 3 | 266 |
| 250 | 250 | 250 | 405 | 350/355 | 12-φ23/12-φ28 | 22 | 3 | 319 |
| 300 | 270 | 300 | 460 | 400/410 | 12-φ23/12-φ28 | 24.5 | 4 | 370 |
| 350 | 290 | 350 | 520 | 460/470 | 16-φ23/16-φ28 | 26.5 | 4 | 429 |
| 400 | 310 | 400 | 565/580 | 515/525 | 16-φ28/16-φ31 | 25/27 | 4 | 480 |
| 450 | 330 | 450 | 640 | 565/585 | 20-φ28/20-φ31 | 30 | 4 | 548 |
| 500 | 350 | 500 | 670/715 | 620/650 | 20-φ28/20-φ34 | 27/32 | 4 | 582/609 |
| 600 | 390 | 600 | 780/840 | 725/770 | 20-φ31/20-φ37 | 30/36 | 5 | 682/720 |
| NO | ITEM | MATERIAL |
| 1 | Valve body | GGG50/40 |
| 2 | Bonnet | GGG50/40 |
| 3 | Bracket | GGG50/40 |
| 4 | Valve plate | GGG50/41+EPDM |
| 5 | Screw nut | GGG50/40 |
| 6 | Lead screw | 2Cr13 |
| 7 | Pressure plate | GGG50/40 |
| 8 | O-ring | EPDM |
| 9 | Handwheel | GGG50/40 |
| 10 | Lifting nut | GGG50 |
| 11 | Bolt | CARBON STEEL |
| 12 | Screw | STAINLESS STEEL |
Packaging display
FAQ
Q: Can I get free samples?
A: Yes, we can provide you the free samples, but you need to bear their own delivery costs.
Q: Can I have my own Logo on the product?
A: Yes, we can make it according to customer's requirements.
Q: Where is your nearest loading port?
A: Shanghai, Qingdao or Tianjin, China.
Q: Can I make products in different sizes?
A: Of course, we can make products of different sizes according to customer requirements.
Q: What is your packing method?
A: Wrap it with plastic film first, then put it into a carton, and then put it into a wooden case, we can also customize it according to customer requirements.
Product Tags:
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