oil pressure relief valve
Pressure Relief Valve(PRV)
or Safety Valve is the best on the pressure equipment, container and
pipeline overpressure protection device. Flanged Pressure Relief Valve
sizing and selection according to API 520,designed according to API 526,
test according to API 527, and flange as ASME B16.5.This valve's type
include
-A42C Conventional Safety Valve;
-WA42C Balance Bellows Safety Valve;
-A44C Packed Lever Safety Valve;
-A48C Open Bonnet Plain Lever Type Safety Valve;
-WA44C Packed Lever Balance Bellows Safety 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 | |||||
Code of throat diameter
| 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 |
Sealing surface of material "H" depositing D507, "Y" depositing stellite
Essential:
Valves are delivered at a set pressure, therefore when ordering
please confirm set pressure, medium and temperature
Application:
-Provided as safety device for protection against excessive pressure in pressure vessels
-Approved for gases and fluids
-Working temperatures: -60°C up to +300°C for stainless steel material, -29°C up to 300°C for cast steel material
We company have other valves: gate valve, check valve, ball valve, butterfly valve, safety valve, globe valve, plug valve, etc....
Welcome to inquiry! our valves
XIAMEN KEMUS VALVE CO.,LTD.
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