Inconel Safety Relief Valve
Design Feature:
- Safety Valve/pressure safety valve, angle type;
- Full lift safety valve;
- Conventional type, Standard safety valve for fluids and gas;
- Metal to metal seated;
- Flange connection according to ANSI B16.5;
- Spring load;
- 100% Compatibility to API 526
- Single Trim (identical internal parts for steam/gas/liquids) allows economical maintenance;
- Quick delivery for high-alloy materials;
- Longer valve lifespan due to hardened disc and (partially) stellite seat;
- Longer lifespan of optional bellows through integrated shielding
Standards Compliance:
- Design and Manufacture: API 520
- Face to Face(end to end): API 526
- Test and Inspection: API 527
Main Property Specification
| Normal Pressure | PN | 150 | 300 | 600 | 900 | 150 |
| Body strength | Ps(Mpa) | 3.0 | 7.5 | 15 | 22.5 | 38 |
| Set pressure | Pk(Mpa) | 0.1-2 | 1.6-5 | 3.2-10 | 8-25 | 10-25 |
| Seal pressure | Pm(Mpa) | 90%Pk | ||||
| Reseation pressure | Ph(Mpa) | ≥90%Pk | ||||
| Relieving Pressure | Pp(Mpa) | ≤1.1Pk | ||||
| Lift height | H(mm) | ≥1/4 d0 | ||||
| Appropriate  Temp. | C (WCB)  P, R (SS304, SS316) | ≤300ºC ≤200ºC | ||||
| Appropriate Medium | Air, Oil, Steam, Water, Corrosive medium | |||||
Dimension:
| Code | Diameter | Code | Diameter |
| D | 10 | L | 20 |
| E | 13 | M | 55 |
| F | 16 | N | 60 |
| G | 20.5 | P | 72 |
| H | 26 | Q | 96 |
| J | 33 | R | 115 |
| K | 40 | T | 148 |
Materials for main parts
| NO | Name of part | Materials A42H-C | Materials A42Y-P | Materials A42Y-R |
| 1 | Body | WCB | CF8 | CF8M |
| 2 | Nozzle | 2Cr13/ 304 | CF8 | CF8M |
| 3 | Adjusting Ring | 2Cr13/ 304 | 304 | 316 |
| 4 | Disc | 2Cr13/ 304 | 304 | 316 |
| 5 | Guide sleeve | 2Cr13/ 304 | 304 | 316 |
| 6 | Bonnet | WCB | CF8 | CF8M |
| 7 | Spring | ASTM 6150 | ASTM 6150 coated teflon | ASTM 6150 coated teflon |
| 8 | Stem | 2Cr13 | 304 | 316 |
| 9 | Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
| 10 | Cap | A126 | CF8 | CF8M |
| 11 | Bellows | 304 | 316 | 316 |
