Close Bonnet safety valve is another popular type of safety valve which contains the fluid entirely and helps to discharge it in the system. This fluid is not vented to the air. For different types of power vessels these vents are mostly used. The spring enclosure is widely used and considered useful for valves with small screw. At present these valves have become quite common and different ranges of such valves are available in the market. The ranges of spring valves mainly depend on the steam and discharge of fluid. The fully closed bonnets are becoming extremely popular in recent days.
We being the leading distributor of this product have it in various sizes and ranges to cope up with the exact need of the customer
To place order with us feel free to give us a call.
| Valve Size | Orifice Code | Orifice Die(mm) | A | B | C | Min. Value Lift(mm) |
| 25*50 | D | 9.5 | 105 | 114.5 | 470 | 3 |
| 25*50 | E | 12.5 | 105 | 114.5 | 470 | 4 |
| 25*50 | G | 23 | 105 | 114.5 | 470 | 6 |
| 40*50 | F | 16 | 124 | 120.5 | 520 | 4 |
| 40*65 | G | 3 | 124 | 120.5 | 530 | 5 |
| 40*80 | H | 28 | 130 | 124 | 530 | 7 |
| 40*80 | J | 32.5 | 130 | 124 | 575 | 8 |
| 50*80 | H | 28 | 133 | 124 | 530 | 7 |
| 50*80 | J | 32.5 | 133 | 124 | 575 | 8.5 |
| 65*100 | J | 32.5 | 136.5 | 143 | 595 | 8.5 |
| 80*100 | K | 41.5 | 155.5 | 162 | 690 | 10.5 |
| 80*100 | L | 50 | 155.5 | 165 | 690 | 13.5 |
| 100*150 | P | 72.5 | 181 | 228.5 | 900 | 25 |
| 150*200 | Q | 95.5 | 239.5 | 241.5 | 1445 | 25 |
| 150*200 | R | 115 | 239.5 | 241.5 | 1445 | 30 |
| 200*250 | T | 146 | 276 | 279.5 | 1500 | 37 |
| Name | Close Bonnet Safety Valve |
| Manufacturing | As per: API 526 |
| Tested | As per 527 |
| Ends flanged As per ANSI | 16.5 Class 150 R.F |
| Pressure | Body Hydrostatic Test pressure twice the set pressure |
| Temperature | 450 degrees centigrade |
| Bonnet | CF8, CF8M, WCB |
| Body | CF8, CF8M, WCB |
| Features | Set Pressure, Flow Medium, Flow Rate |
| Operation | Manual, Pneumatic, Electric |
| Parts | Material | Qty. |
| Body | CF8 / CF8M / WCB | 1 |
| Bonnet | CF8 / CF8M / WCB | 1 |
| Spring Washer | 304 / 316 / M.S. | 2 |
| Guide | 304 / 316 / M.S. | 1 |
| Nozzie | 304 / 316 | 1 |
| Poping Ring | CF8 / CF8M | 1 |
| Valve Seat | 304 / 316 | 1 |
| Ball | 316 | 1 |
| Seat Holder | 304 / 316 / M.S. | 1 |
| Poping Ring Screw | 304 / 316 | 1 |
| Spring Washer | Spring Steel | 1 |
| Setting Screw | 304 / 316 | 1 |
| Setting Nut | 304 / 316 | 1 |
| Spindle | 304 / 316 | 1 |
| Stud & Nut | M.S. / S.S. | 4 |
| Cap | C.I. | 1 |
| Gasket | PTFE / Acbestos | 2 |