Product Name: Full Lift Safety Valve with Handle
Design Standard: API 526
Body Material: ASTM A216 WCB
Size: DN50, 2 Inch
Pressure: PN40, Class 300 LB
End Connection: Threaded
Medium: Steam, Air
A28H type full lift safety valves are designed for use in equipment and pipelines handling media such as water, air, and steam, where the working temperature is below 200°C. The A28Y-P/R type safety valves are specifically engineered for applications involving corrosive media in equipment and pipelines, also with a working temperature limit of below 200°C. These valves are utilized as additional pressure relief devices to ensure safety and prevent overpressure conditions.
Technical Specification
» Product model: A28H, A28Y
» Normal Size Range: 1/2-3 inch (DN15-DN80)
» Normal Pressure Rating: PN10-PN40, Class 150-300 LB
» Materials: ASTM A216 WCB, A351 CF8, CF8M, CF3, CF3M, Brass, Bronze
» Ends Connections: BSP Thread, NPT Thread
Structural Diagram
Main Parts and Materials
No |
Name of Parts |
Carbon steel |
Stainless steel |
Stainless steel |
1 |
Nozzle |
AISI 1035 |
SS 304 |
SS 316 |
2 |
Body |
A216 WCB |
A351 CF8 |
A351 CF8M |
3 |
Adjusting Ring |
2Cr13 |
SS 304 |
SS 316 |
4 |
Disc |
2Cr13 |
SS 304 |
SS 316 |
5 |
Spring |
50CrVA |
50CrVA |
50CrVA |
6 |
Stem |
2Cr13 |
SS 304 |
SS 316 |
7 |
Adjusting Bolt |
AISI 1045 |
2Cr13 |
2Cr13 |
8 |
Cap |
ZG230-450 |
SS 304 |
SS 316 |
9 |
Sealing surface |
Overlay stellite |
Overlay stellite |
Overlay stellite |
Source: https://www.kosenvalve.com/carbon-steel-safety-valve-api-526-astm-a216-wcb-dn50-pn40.html
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