Carbon Steel Safety Valve, API 526, ASTM A216 WCB, DN50, PN40

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
Structural Diagram of Full Lift Safety Valve with Handle

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


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Source: https://www.kosenvalve.com/carbon-steel-safety-valve-api-526-astm-a216-wcb-dn50-pn40.html