Bolt/welded connection valve cover, reduced diameter and full diameter
The end connection is a flange, designed according to API602, BS5352, ASME16.34
Product drawing
Product dimensions
| PN16/25 RF |
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| DN | NPS（inch） | Ød | L | H | A | B | C | T | F | n-Ø |
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| 15 | 1/2″ | 10.5 | 130 | 56 | 45 | 65 | 95 | 16 | 2 | 4-14 |
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| 20 | 3/4″ | 13 | 150 | 58 | 58 | 75 | 105 | 18 | 2 | 4-14 |
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| 25 | 1″ | 17.5 | 160 | 78 | 68 | 85 | 115 | 18 | 2 | 4-14 |
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| 32 | 1 1/4″ | 24 | 180 | 88 | 78 | 100 | 135 | 18 | 2 | 4-18 |
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| 40 | 1 1/2″ | 29 | 200 | 96 | 88 | 110 | 145 | 18 | 3 | 4-18 |
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| 50 | 2″ | 36.5 | 230 | 108 | 102 | 125 | 160 | 20 | 3 | 4-18 |
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| PN40 FM |
| DN | NPS（inch） | Ød | L | H | A | B | C | d | T | f | f2 | n-Ø |
| 15 | 1/2″ | 10.5 | 130 | 56 | 45 | 65 | 95 | 40 | 16 | 2 | 4 | 4-14 |
| 20 | 3/4″ | 13 | 150 | 58 | 58 | 75 | 105 | 51 | 18 | 2 | 4 | 4-14 |
| 25 | 1″ | 17.5 | 160 | 78 | 68 | 85 | 115 | 58 | 18 | 2 | 4 | 4-14 |
| 32 | 1 1/4″ | 24 | 180 | 88 | 78 | 100 | 135 | 66 | 18 | 2 | 4 | 4-18 |
| 40 | 1 1/2″ | 29 | 200 | 96 | 88 | 110 | 145 | 76 | 18 | 3 | 4 | 4-18 |
| 50 | 2″ | 36.5 | 230 | 108 | 102 | 125 | 160 | 88 | 20 | 3 | 4 | 4-18 |
| PN63 FM |
| DN | NPS（inch） | Ød | L | H | A | B | C | d | T | f | f2 | n-Ø |
| 15 | 1/2″ | 10.5 | 170 | 63 | 45 | 75 | 105 | 40 | 18 | 2 | 4 | 4-14 |
| 20 | 3/4″ | 13 | 190 | 65 | 58 | 90 | 130 | 51 | 20 | 2 | 4 | 4-18 |
| 25 | 1″ | 17.5 | 210 | 80 | 68 | 100 | 145 | 58 | 22 | 2 | 4 | 4-18 |
| 32 | 1 1/4″ | 24 | 230 | 90 | 78 | 110 | 155 | 66 | 24 | 2 | 4 | 4-22 |
| 40 | 1 1/2″ | 29 | 260 | 101 | 88 | 125 | 170 | 76 | 24 | 3 | 4 | 4-22 |
| 50 | 2″ | 36.5 | 300 | 120 | 102 | 135 | 180 | 88 | 26 | 3 | 4 | 4-22 |
| PN100 FM |
| DN | NPS（inch） | Ød | L | H | A | B | C | d | T | f | f2 | n-Ø |
| 15 | 1/2″ | 10.5 | 170 | 63 | 45 | 75 | 105 | 40 | 20 | 2 | 4 | 4-14 |
| 20 | 3/4″ | 13 | 190 | 65 | 58 | 90 | 130 | 51 | 22 | 2 | 4 | 4-18 |
| 25 | 1″ | 17.5 | 210 | 80 | 68 | 100 | 140 | 58 | 24 | 2 | 4 | 4-18 |
| 32 | 1 1/4″ | 24 | 230 | 90 | 78 | 110 | 155 | 66 | 26 | 2 | 4 | 4-22 |
| 40 | 1 1/2″ | 29 | 260 | 101 | 88 | 125 | 170 | 76 | 28 | 3 | 4 | 4-22 |
| 50 | 2″ | 36.5 | 300 | 120 | 102 | 145 | 195 | 88 | 30 | 3 | 4 | 4-26 |
| PN160 FM |
| DN | NPS（inch） | Ød | L | H | A | B | C | d | T | f | f2 | n-Ø |
| 15 | 1/2″ | 10.5 | 170 | 65 | 45 | 75 | 105 | 40 | 20 | 2 | 4 | 4-14 |
| 20 | 3/4″ | 13 | 190 | 80 | 58 | 90 | 130 | 51 | 24 | 2 | 4 | 4-18 |
| 25 | 1″ | 17.5 | 210 | 90 | 68 | 100 | 140 | 58 | 24 | 2 | 4 | 4-18 |
| 32 | 1 1/4″ | 24 | 230 | 101 | 78 | 110 | 155 | 66 | 28 | 2 | 4 | 4-22 |
| 40 | 1 1/2″ | 29 | 260 | 120 | 88 | 125 | 170 | 76 | 28 | 3 | 4 | 4-22 |
| 50 | 2″ | 36.5 | 300 | 135 | 102 | 145 | 195 | 88 | 30 | 3 | 4 | 4-26 |
| PN250 FM |
| DN | NPS（inch） | Ød | L | H | A | B | C | d | T | f | f2 | n-Ø |
| 15 | 1/2″ | 10.5 | 170 | 65 | 70 | 90 | 130 | 40 | 26 | 2 | 4 | 4-18 |
| 20 | 3/4″ | 13 | 190 | 80 | 75 | 95 | 135 | 51 | 28 | 2 | 4 | 4-18 |
| 25 | 1″ | 17.5 | 210 | 90 | 82 | 105 | 150 | 58 | 28 | 2 | 4 | 4-22 |
| 32 | 1 1/4″ | 24 | 230 | 101 | 96 | 120 | 165 | 66 | 32 | 2 | 4 | 4-22 |
| 40 | 1 1/2″ | 29 | 260 | 120 | 108 | 135 | 185 | 76 | 34 | 3 | 4 | 4-26 |
| 50 | 2″ | 36.5 | 300 | 135 | 122 | 150 | 200 | 88 | 38 | 3 | 4 | 8-26 |
Technical Documentation
1. Design and Manufacturing: API602; ASME B16.34
2. Structural length: ASME B16.34
3. Flange end size: ASME B16.5 (RF, FM, RJ)
4. Inspection and Testing: API598
5. Structural features: B · B (central bolt) W · B (central welding) Flow rate: Full diameter (FP) Shrinking diameter (RP)
6. Subject material：A105N,LF2,LF3,F11,F5,F22,F304,F304L.F316,F316L,F321H,F51,F53,F55,F91,F92,F347,310S,800H, 600625 Special materials, etc
