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Product Details:
Payment & Shipping Terms:
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| Product Name: | Wafer Butterfly Valve | Standard: | GB/T, Chinese Standard |
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| Connection: | Flange/wafer,Wafer | Seat Material: | Ss, Steel |
| Pressure: | Medium Pressure,Low Pressure | Disc: | Carbon Steel |
| Body Material: | Carbon Steel, Steel | Color: | Customized |
| High Light: | 1.6mpa wafer butterfly valve,150mm wafer butterfly valve,high temperature wafer type butterfly valve |
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The handle butterfly valve is simple in structure, small in size and light in weight, and only consists of a few parts. And only need to rotate 90° can be quickly opened and closed, simple operation, and the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is small, so it has better flow control characteristics.
It is composed of valve body, disc, bracket, valve stem, electric device, sealing ring and so on
| Type |
Size |
L | H | H1 | A1 | B1 | 16KG | 25KG | ||
| D1 | Z-Φd | D1 | Z-Φd | |||||||
|
D373H -16C/25 |
50 | 43 | 112 | 350 | 180 | 200 | 125 | 4-Φ18 | 125 | 4-Φ18 |
| 65 | 46 | 115 | 370 | 180 | 200 | 145 | 4-Φ18 | 145 | 8-Φ18 | |
| 80 | 49 | 120 | 380 | 180 | 200 | 160 | 8-Φ18 | 160 | 8-Φ18 | |
| 100 | 56 | 138 | 420 | 180 | 200 | 180 | 8-Φ18 | 190 | 8-Φ22 | |
| 125 | 64 | 164 | 460 | 180 | 200 | 210 | 8-Φ18 | 220 | 8-Φ26 | |
| 150 | 70 | 175 | 555 | 270 | 280 | 240 | 8-Φ22 | 250 | 8-Φ26 | |
| 200 | 89 | 208 | 605 | 270 | 280 | 295 | 12-Φ22 | 310 | 12-Φ26 | |
| 250 | 114 | 243 | 680 | 270 | 280 | 355 | 12-Φ26 | 370 | 12-Φ30 | |
| 300 | 114 | 283 | 825 | 380 | 420 | 410 | 12-Φ26 | 430 | 16-Φ30 | |
| 350 | 127 | 310 | 900 | 380 | 420 | 470 | 16-Φ26 | 490 | 16-Φ33 | |
| 400 | 140 | 340 | 980 | 450 | 470 | 525 | 16-Φ30 | 550 | 16-Φ36 | |
| 450 | 152 | 380 | 1030 | 480 | 490 | 585 | 20-Φ30 | 600 | 20-Φ36 | |
| 500 | 152 | 410 | 1105 | 480 | 490 | 650 | 20-Φ33 | 660 | 20-Φ36 | |
| 600 | 154 | 470 | 1310 | 480 | 490 | 770 | 20-Φ36 | 770 | 20-Φ39 | |
| 700 | 165 | 550 | 1435 | 640 | 660 | 840 | 24-Φ36 | 875 | 24-Φ42 | |
| 800 | 190 | 640 | 1605 | 640 | 660 | 950 | 24-Φ39 | 990 | 24-Φ48 | |
| 900 | 203 | 710 | 1745 | 750 | 860 | 1050 | 28-Φ39 | 1090 | 28-Φ48 | |
| 1000 | 216 | 770 | 1885 | 850 | 900 | 1170 | 28-Φ42 | 1210 | 28-Φ55 | |
| 1200 | 254 | 890 | 2105 | 850 | 900 | 1390 | 32-Φ48 | 1420 | 32-Φ55 | |
| Main part | part material |
| Body,Disc,Yoke | WCB |
| Stem | 2Cr13 |
| Seal ring | 430+Graphite asbestos |
1. The valve is kept in a dry warehouse. It is strictly prohibited to store it in the open air.
2. Long-term storage, regular maintenance.
3. The valve is installed on the horizontal or vertical pipe, but it should be opened and closed for easy operation.
4. Pressure test should be carried out before installation, and installation can meet the requirements.
5. Pipe and valve cavity should be cleaned before installation.
6. The valve shall not be subjected to large external forces after installation.
7. The medium flow direction should be consistent with the arrow direction of the valve body when installing.
8. The operating conditions shall meet the technical requirements in the performance specification.
| Possible faults | Cause of the fault | Method of elimination |
| Leakage of packing |
1. Expiration or aging of stuffing 2. The gland bolt is not tightened |
1. Replace the packing 2. Tighten the gland bolts evenly |
| End cap leakage |
1. The bolt is not tightened 2. The O-ring is damaged |
1. Tighten the bolts. 2. Replace the O-ring |
| Sealing surface leakage |
1. The valve installation direction is inconsistent with the medium flow direction 2. The shutdown is not in place 3. There is scaling on the sealing surface 4. The sealing surface is damaged |
1. Check the installation 2. Readjust the screws on the actuator and close them in place 3. Clean up the buildup 4. Re-grind and repair the sealing surface |
Contact Person: Ms. Ada Chen
