Active Member
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[China]
Address: Jianshe South Street, Yuhua District, Shijiazhuang City, Hebei Province, China
Contact name:Ada Chen
China • Yuanda Valve Group Co., Ltd. |
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This valve is suitable for opening and closing of water, steam and oil pipelines.
The valve is composed of valve body, ball, valve stem, handle and other parts. The valve stem rotates by turning the handle
90 °, the valve rod drives the ball to rotate by 90 ° to realize opening and closing.
| Type | Pressure(Lb) | test pressure | suitable temperature℃ | suitable medium | |
| strength(water)(MPa) | seal(water)(MPa) | ||||
| API(B)Q41F-150Lb(C) | 150 | 3.0 | 2.2 | ≤150℃ | water,Steam,oil |
·Design and manufacture: API 6D
·Structure length: API 6D
·Connection end: ASME B16.5
·Inspection and test: API 6D
| Part name | Material |
| Body | ASTM A216 WCB |
| Stem,Ball | ASTM A182 F304 |
| Seal,packing | PTFE |
| DN | L | D | D1 | D2 | b | N-h | f | H |
| 15 | 108 | 90 | 60.3 | 35 | 8.0 | 4-ф16 | 1.6 | 105 |
| 20 | 117 | 100.0 | 70 | 43 | 9.0 | 4-ф16 | 1.6 | 106 |
| 25 | 127 | 110 | 79.4 | 51 | 9.6 | 4-ф16 | 1.6 | 121 |
| 32 | 140 | 115 | 89 | 63.5 | 11.2 | 4-ф16 | 1.6 | 131 |
| 40 | 165 | 125 | 98.4 | 73.2 | 12.7 | 4-ф16 | 1.6 | 135 |
| 50 | 178 | 150 | 120.7 | 92 | 14.3 | 4-ф19 | 1.6 | 146 |
| 65 | 190 | 180 | 139.7 | 104.7 | 16.0 | 4-ф19 | 1.6 | 170 |
| 80 | 203 | 190 | 152.5 | 127 | 17.5 | 4-ф19 | 1.6 | 189 |
| 100 | 229 | 230 | 190.5 | 157.2 | 22.3 | 8-ф16 | 1.6 | 212 |
| 125 | 356 | 255 | 216 | 186 | 22 | 8-ф22 | 1.6 | 235 |
| 150 | 394 | 280 | 241.5 | 216 | 23.9 | 8-ф22 | 1.6 | 285 |
| 200 | 457 | 345 | 298.5 | 270 | 27.0 | 8-ф22 | 1.6 | 428 |
| Possible faults | Cause of failure | Fault elimination method |
| Leakage of sealing surface | 1. The middle flange bolts are loose. 2. The sealing surface is damaged. | 1. Evenly tighten the middle flange bolts. 2. Trim the sealing surface or replace the parts. |
| Packing leakage | 1. Insufficient packing. 2. Packing is not compacted. | 1. Add filler. 2. Compact the packing. |
| Leakage at middle mouth | 1. The Sino French pad is damaged or invalid. 2. The middle flange bolts are not tightened. | 1. Replace the middle flange gasket. 2. Evenly tighten the middle flange bolts.
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1. The product shall be stored in a dry warehouse and shall not be stored in the open air.
2. For long-term storage, regular maintenance is required.
3. This product can be installed at any position of the pipeline or equipment, but it should be easy to open and close.
4. Pressure test shall be carried out before installation, and installation can only be carried out if it meets the requirements.
5. Clean the pipe and valve cavity before installation.
6. The product shall not be subjected to large external force after installation.
7. The position of the handle indicates that the valve is open or closed. The handle is opened when it is parallel to the pipeline axis, and closed when it is perpendicular to the pipeline axis.
8. The operating conditions shall be consistent with the requirements of the performance specifications.
