Pressure Seal Gate Valve
CAMTECH Pressure Seal Flexible Wedge Gate Valves are ideal for high pressure steam, liquid, catalytic reformers, hydrocrackers and other tough services. In the tough world of High pressure, High temperature valve applications, Pressure seal gate Valve continue to provide a wide range of industries with a safe, leak free, pressure containing boundary.
The basic concept of pressure seal valves is that the initial bonnet pull up bolts tighten the bonnet which inturns seals the pressure seal gasket to the body. Then the system pressure assist for more force to seal the gasket. Hence, as system pressure increases, the potential for leakage through the body/bonnet joint decreases.
| Specification | Details |
|---|---|
| Design Standard | ASME B16.34 / API 600 |
| Pressure/Temperature Chart | ASME B16.34 |
| Face to face Dimension | ASME B16.10 |
| Testing Standard | API 598 |
| Flange Details | ASME B16.5 UP TO 24″ |
| Butt-Weld End Details | ASME B16.25 |
| Size Range | 2″ – 24″ (DN50 – DN600) |
| ASME Class | 150 – 1500 |
| Bore Type | Full Bore and Reduced Bore |
| Materials | WCB / LCB / LCC / CF8M / CF8 / CF3M / 4A / 6A / Inconel |
| Trims | F6a / F316 / F304 / F316L / F51 / F55 / Inconel / Stellied or Hardfaced |
| Ends | Flange ends, Butt-weld End |
- Cast body precisely machined with integral flanges.
- One piece flexible wedge as standard which provides superior tightness and non sticking operations.
- Rising stem with precision ACME thread with single or double start for quick operation.
- Stem packing is designed for optimum control of fugitive emission leakage to the atmosphere and is assured by the polished finish stem sealing area.
- Live loading on packing can be provided as request.
- Back seat shall be either threaded or welded in to facilitate the replacement of packing under line pressure.
- Longer Seat rings are designed for higher temperature and higher pressure.
- Two piece gland and gland flange arrangement for reduced stem wear.
- By-Pass, Lantern rings, pressure equalization lines, special connection are as optional.
- Nace service either MR-01-75 or MR-01-03 as required.
- Valves can be supplied with Pneumatic, Hydraulic or electric actuators.
- Accessories like limit switch, etc can be provided as optional.
