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

Name: Carbon Steel Safety Valve, API 526, ASTM A216 WCB, DN50, PN40
SKU: KV-20250714-SV-02
Availability: InStock
Rating: 5 (1 reviews)

Key Specifications / Features

China Carbon Steel Safety Valve Factory produces API 526-compliant full-lift safety valves with a handle for manual operation, constructed from ASTM A216 WCB carbon steel for durability. These 2-inch (DN50) valves are rated for PN40/Class 300 LB pressure and feature threaded ends for easy installation. Ideal for overpressure protection in steam, gas, and oil systems, they ensure reliable performance in power plants, refineries, and industrial piping applications.

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Detail Information

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