Stainless Steel DN150mm Flanged Globe Valve Api Standard 150lb Pressure
Stainless Steel Globe Valve With Flange,API Standard, 150LB Pressure
Usage
This valve is mainly used to connect or cut off the medium in the pipeline. Generally, there is no need to adjust the flow.
Structure and action principle
1. This valve is flange connected, and the flange size shall comply with ANSI B 16.5 standard.
2. This valve is composed of valve body, bonnet, disc, stem, stem nut, handwheel and other parts. By rotating the handwheel, the stem rotates, and the stem drives the disc up or down to achieve the purpose of opening and closing.
Connection size
| Type | DN | L | D | D1 | D2 | b-f | Z-Φd | H1 | H2 | D0 | |
|
J41W-150Lb |
1 1/2 | 40 | 165 | 127 | 98.4 | 73 | 18-1.6 | 4-Ф16 | 236 | 260 | 160 |
| 2 | 51 | 203 | 152.4 | 120.7 | 92.1 | 19.5-1.6 | 4-Ф19 | 259 | 284 | 200 | |
| 2 1/2 | 65 | 216 | 178 | 139.7 | 105 | 22.5-1.6 | 4-Ф19 | 312 | 348 | 240 | |
| 3 | 80 | 241 | 190.5 | 152.4 | 127 | 24-1.6 | 4-Ф19 | 334 | 375 | 240 | |
| 4 | 100 | 292 | 228.6 | 190.5 | 157 | 24-1.6 | 8-Ф19 | 389 | 441 | 280 | |
| 5 | 125 | 356 | 254 | 215.9 | 186 | 24-1.6 | 8-Ф22 | 429 | 503 | 320 | |
| 6 | 150 | 406 | 279.4 | 241.3 | 216 | 25.5-1.6 | 8-Ф22 | 476 | 554 | 400 | |
| 8 | 200 | 495 | 343 | 298.5 | 270 | 29-1.6 | 8-Ф22 | 550 | 630 | 450 |
Material of main parts
| Part Name | Material |
| Body, Bonnet | CF8 |
| Disc | CF8 |
| Stem | F304 |
| Stem nut | ZCuAI10Fe3 |
Possible faults and elimination methods
| Possible failure | Cause of failure | Elimination method |
| Leakage of sealing surface |
1. There are sundries and dirt between the sealing surfaces. 2. The sealing surface is damaged. |
1 clean the dirt and sundries on the sealing surface. 2. Refinish the sealing surface. |
| Filler leakage |
1. The packing gland is not tightened. 2. Insufficient filler. 3. Packing failure. |
1. Evenly compress the packing. 2. Add filler. 3. Replace with new packing. |
|
Leakage of flange connection sealing surface |
1. The middle flange bolts are not tightened or the tightness is uneven. 2. The sealing surface of the connecting flange is damaged |
1. Tighten the bolts evenly. 2. Refinish the flange sealing surface. |
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