NOMINAL SIZE
- 1-1/2", 2", 3", 4", 6", 8", 10", and 12"
CONNECTIONS
- ANSI/ASME B16.5 Class 150 Flange
- KS/JIS 10K Flange
Pressure Relief Valve Installed in a storage tank or system where there is no possibility of generating a vacuum or a Vacuum Relief device is installed separately and only pressure relief function is required.
Drilling conforming to ANSI/ASME B16.5 for Class 150 Flanges, or KS/JIS 10K Flanges Designed that the pallet can be seated correctly because of Pallet Guide.
Designed protect storage tank from internal over-pressure, and standard air-cushioned pallet assures minimal internal vapor leakage Suitable materials available for corrosive Chemical, and supply various size valve.
NBR(Buna-N), VITON and other seating materials are available when required
▶ Consult our factory for special application.
Specifications
| Service | Pressure and Vacuum Relief, End-of-line |
|---|---|
| Set pressure & set vacuum, min/max. Weight loaded type. Spring loaded type | 22mmH2O(0.5oz/sq.in) / 700mmH2O(1psi) 700mmH2O(1psi) / 1.05kg/㎠(15psi) |
| Temperature range(standard) | -45℃~120℃(-113℉~+248℉) |
Materials
| PART NAME | MATERIALS STANDARD | MATERIALS OPTIONAL |
|---|---|---|
| Body & Cover | Carbon Steel, 304 S.S, 316 S.S, Aluminum | Hastelloy, Alloy 20, FRP, PTFE, ETFE LINED |
| Seat | 304 S.S, 316 S.S, Aluminum | Hastelloy, Alloy 20, FRP, PTFE, ETFE LINED |
| Pallet | 304 S.S, 316 S.S | Hastelloy, Alloy 20, FRP, PTFE, ETFE LINED |
| Pallet Guide | 304 S.S, 316 S.S | 316 S.S, PTFE COATING |
| Seating Diaphragm | FEP TEFLON (Weight loaded type) VITON O-ring (spring loaded type) | Metal to metal |
| Weather Hood | 304 S.S, Aluminum | 316 S.S |
▶ Other special materials and special specifications are available upon customer`s request.
