Product drawing
Product dimensions
| boltvalve cover800LB |
| NPS | Shrinking diameter（R.P.) | / | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" | 3" |
| Full diameter（F.P.) | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" |
| structural length/mm | L | 98 | 98 | 98 | 111 | 140 | 140 | 155 | 170 |
|
| Center height (open)/mm | H | 70 | 70 | 70 | 100 | 110 | 120 | 120 | 150 |
|
| Channel aperture/mm | d | 7 | 10 | 13 | 17.5 | 23 | 30 | 35 | 46 |
|
| Weight (approximately)/Kg | 2.2 | 2.2 | 2.1 | 4.2 | 9 | 8.9 | 10 | 18.6 |
|
| Welding valve cover800LB |
| NPS | Shrinking diameter（R.P.) | / | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" | 3" |
| Full diameter（F.P.) | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" |
| structural length/mm | L | 79 | 79 | 92 | 100 | 140 | 140 | 155 | 170 |
|
| Center height (open)/mm | H | 65 | 65 | 65 | 95 | 105 | 110 | 110 | 140 |
|
| Channel aperture/mm | d | 7 | 10 | 13 | 17.5 | 23 | 30 | 35 | 46 |
|
| Weight (approximately)/Kg | 1.8 | 1.8 | 2 | 3.5 | 8 | 8 | 12 | 16 |
|
| boltvalve cover900LB-1500LB |
|
|
| NPS | Full diameter（F.P.) | 3/8" | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" |
|
|
| structural length/mm | L | 98 | 111 | 111 | 140 | 140 | 155 | 170 |
|
|
| Center height (open)/mm | H | 70 | 70 | 100 | 110 | 110 | 120 | 150 |
|
|
| Channel aperture/mm | d | 9 | 12 | 15 | 20 | 28 | 32 | 40 |
|
|
| Weight (approximately)/Kg | 2.1 | 4.2 | 9 | 8.9 | 10 | 18.6 | 20 |
|
|
| Welding valve cover900LB-1500LB |
|
|
| NPS | Full diameter（F.P.) | 3/8" | 1/2" | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" |
|
|
| structural length/mm | L | 92 | 100 | 100 | 140 | 140 | 155 | 170 |
|
|
| Center height (open)/mm | H | 65 | 65 | 65 | 105 | 110 | 110 | 140 |
|
|
| Channel aperture/mm | d | 9 | 12 | 15 | 20 | 32 | 28 | 40 |
|
|
| Weight (approximately)/Kg | 2 | 3.5 | 3.5 | 8 | 12 | 12 | 18 |
|
|
Technical Documentation
1. Design and Manufacturing: BS5352
2. Structural length: JB/T7746 or customer requirements
3. Socket end size: ASME B16.11; JB/T7746(SW)
Welding end size: ASME B16.25; JB/T7746(BW)
Thread end size: ASME B1.20.1 (NPT); GB/T7306(Rc)
4. Inspection and testing: API598; JB/T9092; GB/T13927
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
