Pressure Vacuum Relief Valve
Pressure vacuum relief systems are used to protect storage tanks from excessive pressure and vacuum conditions.
At Kiatork, we manufacture various types of pressure and vacuum valves tailored to customer needs and system configurations. Multiple selection options are available to ensure the right valve type is chosen for each application.
Explanation
Pressure vacuum relief systems are used to protect storage tanks from excessive pressure and vacuum conditions.
At Kiatork, we manufacture various types of pressure and vacuum valves tailored to customer needs and system configurations. Multiple selection options are available to ensure the right valve type is chosen for each application.
Compliance & Features
- Fully compliant with API 2000 requirements for orifice area, sizing procedures, pressure ratios, and flange connections
- Prevents tank collapse
- Enhance operational efficiency
- Available in pilot-operated, spring-loaded, and weight-loaded types
- Easy maintenance
Typical Applications
- Oil & gas industry
- Chemical industry
- Petrochemical industry
- Water treatment
Technical Information
| Article | CE (Metric) | ASME (SI) | ||
| Inlet Size Range | DN 50-DN 300 | 2″-12″ | ||
| Outlet Size Range | DN 50-DN 300 | 2″-12″ | ||
| Connection Std | EN 1092-1 | ASME B16.5 | ||
| Inlet flange rating | PN 20-PN 100 | CL 150-CL 600 | ||
| Orifice Letter | Full Bore | Full Bore | ||
| Pressure range | 1 up to 1000 mbarg | 0.01 up to 14.5 psig | ||
| Temperature Range | -100 to 250 °C | -148 to 482 °F | ||
| Body Material | ||||
| Carbon Steel | 1.0460, 1.0619 | Carbon Steel | SA 105, SA 216(WCB), SA 352(LCB) | |
| Heat Resistant Carbon Steel | 1,7357 | Heat Resistant Carbon Steel | SA 217(WC6) | |
| Stainless Steel | 1.4408, 1.4409 | Stainless Steel | SA 351(CF8M, CF3M) | |
| Spring Material | 1.4310, 1.4401, 1.4404, 1.4571, 1.7102, 1.8159, EN 10270, 2.4669 | 302, 316, 316L, 316Ti, Inconel X-750 | ||
| Seat Types | Soft Seat, Hard Seat(Metal to Metal) | |||
| Seat Materials | ||||
| Metal Sealing: Stellite 6 | ||||
| Soft Sealing: NBR, HNBR, Viton, Kalrez | ||||
Standards
| Std | Title |
| API 2000 | Venting Atmospheric and Low-pressure Storage Tank |
| ASME B16.5 | Pipe Flange and Flange Fitting |
| ASME B16.34 | Valves – Flanged, Thread and Welding End Design Parameter |
| ASME SEC II | Materials and Specification |
| DIN EN 20273 | Fasteners; clearance holes for bolts and screws. |
| ISO 15156 / NACE MR0175 | Selection of Cracking Resistant Material |
Coding
