A48SC High Temperature and High Pressure With Radiator Safety Valve
Full lift safety valve for high temperture and high pressure condition, metal to metal seated, with plain type lever, Inlet: Flanged connection acc. to ANSI B16.5Outlet: Flanged connection acc. to ANSI B16.5Open bonnet, with radiator
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Type A48SC - Safety Valve
Safety Valves/pressure safety valves, angle type
Full lift safety valve for high temperture and high pressure condition, metal to metal seated, with plain type lever,
Inlet: Flanged connection acc. to ANSI B16.5
Outlet: Flanged connection acc. to ANSI B16.5
Open bonnet, with radiator
Applications
Provided as safety device for protection excessive pressure in pressure vessels. Approved for gases, vapours and fluids in high temperature and high pressure condition.
Standards Compliance
Design and Manufacture: API RP 520
Face to Face(end to end): API 526
Test and Inspection: API 527
Main property specifiecation
| Mormal Pressure | PN | 150 | 300 | 600 | 900 | 1500 | 2500 |
| Body strength | Ps(Mpa) | 3.0 | 7.5 | 15 | 22.5 | 38.0 | 63 |
| Set pressure | Pk(Mpa) | 0.1-2 | 1.6-5 | 3.2-10 | 8-15 | 10-25 | 16-40 |
| Seal pressure | Pm(Mpa) | 90%Pk | |||||
| Reseation pressure | Ph(Mpa) | ≥90%Pk | |||||
| Relieving Pressure | Pp(Mpa) | ≤1.03Pk | |||||
| Lift height | H(mm) | ≥1/4 d0 | |||||
| Appropriate temp. | C | ≤420℃ | |||||
| I | ≤500℃ | ||||||
| V | ≤540℃ | ||||||
| Appropriate Medium | Fluids, Steam | ||||||
Code of throat diameter
| Code | Diameter | Code | Diameter |
| D | 10 | L | 50 |
| 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 A48SY-C | Materials A48SY-I | Materials A48SY-V |
| 1 | Body | WCB | WC6 | WC9 |
| 2 | Nozzle | WCB+STL | WC6+STL | WC9+STL |
| 3 | Adjusting Ring | 420 | 304 | 304 |
| 4 | Disc | 17-4PH | 304 | 304 |
| 5 | Guide sleeve | 420 | 304 | 304 |
| 6 | Bonnet | WCB | WCB | WCB |
| 7 | Spring | ASTM6150 | ASTM6150 | ASTM6150 |
| 8 | Stem | F6a | F6a | F6a |
| 9 | Adjusting bolt | 1045 | 2Cr13 | 2Cr13 |
| 10 | Cap | WCB | WCB | WCB |
| 11 | Radiator | WCB | WC6 | WC9 |
| Sealing surface of material "Y" depositing stellite | ||||
Essential:
Valves are delivered at a set pressure, therefore when ordering
please confirm set pressure, medium and temperature
TS
Safety accessory and Safety protection deviceManufacture License of Special Equipment, People's republic of China
Main Dimensions
Remark: 150Lb for outlet flange
Remark: 150Lb for outlet flange
Remark: 150Lb for outlet flange
Remark: 150Lb for outlet flange
Remark: 300Lb for outlet flange
Remark: 300Lb for outlet flange
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