Lever Safety Valve, API 526, ASTM A216 WCB, DN50, PN16
- Product Name:
- Spring-loaded Full Lift Safety Valve with Lever
- Design Standard:
- API 526
- Body Material:
- ASTM A216 WCB
- Size:
- DN50
- Pressure:
- PN16
- End Connection:
- Groove Flanged
Key Specifications / Features
The China Lever Safety Valve is a spring-loaded, full lift valve designed to ensure safe pressure relief in high-pressure systems. Manufactured in accordance with API 526 standards, it features a carbon steel ASTM A216 WCB body, with sizes DN50DN80 (23 inches) and a PN64 pressure rating (Class 400 LB). The valve comes with groove flanged ends for easy installation and secure sealing.
The A48Y series spring full lift safety valves are designed for equipment and pipelines handling steam, air, and other media with working temperatures below 350°C. The A44Y type safety valves are specifically used for equipment and pipelines dealing with air and petroleum gas, with working temperatures below 300°C. These valves serve as essential extra pressure protection devices to ensure the safe operation of systems.
Technical Specification
» Product Model: A48Y
» Normal Size Range: 1/2-10 Inch (DN15-DN250)
» Normal Pressure Rating: Class 150-600 LB (PN16-PN100)
» Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex, or Other Specials
» Design and Manufacture: GB/T 12243-1989, API RP 520, 521, API 526, API 527
» Face to Face (End to End): GB/T 14087, JB/T 6441, JB/T 2203, JB/T 9624, JB/T 53170
» Flanged Connection: ASME B16.5, DIN 2543 to 2545, EN 12627
» Test and Inspection: API 598, DIN 3230, MSS SP-117
» End Connections: RF Flanged, Groove Flange
» Working Medium: Steam, Air
Main Parts and Materials
| No | Name of Parts | Carbon Steel | Stainless Steel | Stainless Steel |
| 1 | Body | A216 WCB | A351 CF8 | A351 CF8M |
| 2 | Nozzle | 2Cr13 | SS 304 | SS 316 |
| 3 | Adjusting Ring | 2Cr13 | SS 304 | SS 316 |
| 4 | Disc Holder | 2Cr13 | SS 304 | SS 316 |
| 5 | Disc | 2Cr13 | SS 304 | SS 316 |
| 6 | Guide Sleeve | 2Cr13 | SS 304 | SS 316 |
| 7 | Bonnet | ZG230-450 | SS 304 | SS 316 |
| 8 | Spring | 50CrVA | 50CrVA+Coated Teflon | |
| 9 | Stem | 2Cr13 | SS 304 | SS 316 |
| 10 | Lever | ZG230-450 | SS 304 | SS 316 |
| 11 | Adjusting bolt | 45 | 2Cr13 | 2Cr13 |
| 12 | Cap | ZG230-450 | SS 304 | SS 316 |
| 13 | Sealing surface | Overlay STL | Overlay STL | Overlay STL |
