Bolted Bonnet Swing Check Valve, ASTM A216 WCB, 3 IN, CL150

Key Specifications / Features

Model No. : 184101003

This bolted cover swing check valve is automatically driven by fluid flow. When the medium flows forward, the valve disc will be pushed open; once flow reverses, the disc closes immediately to block backflow and safeguard pumps and other upstream process equipment. Flanged ends simplify field assembly and disassembly work. The WCB cast carbon steel body can withstand medium- and high-temperature fluids. Its design meets the ASME B16.34 specification, and performance testing follows the API 598 standard.

Detail Information

Product: Swing Check Valve
Standard: BS 1868, ASME B16.34
Nominal Pipe Size: 3 Inch, corresponding to DN80
Pressure Class: ASME 150 LB, roughly PN20
Body Material: ASTM A216 WCB, cast carbon steel for medium- and high-temperature working conditions
End connection: Flanged
Heat Number: 3316, casting batch number for material traceability inspection
Flow Direction: Arrow marking; fluid can only pass in the direction indicated by the arrow

Features

Self-actuating function: Operated purely by fluid pressure, free of power supply or manual control parts
Low pressure loss: Swing-type disc reduces flow resistance inside the pipeline system
Bolted bonnet: Facilitates internal component inspection and overhaul without pipeline cutting
Robust WCB casting body: Offers excellent mechanical performance, adaptable to steam, oil and non-corrosive gas media
Flanged end connection: Delivers reliable sealing, supports quick installation and replacement
Optional hard facing seat: Stellite alloy cladding on sealing surface enhances anti-abrasion and anti-erosion capability for longer service life

Applications

Oil and gas sector: Crude oil and natural gas pipelines, backflow protection for pumps and compressors
Power generation industry: Boiler feedwater and steam piping networks
Petrochemical plants: Process pipelines carrying water, oil, and non-corrosive fluids
Water treatment projects: Industrial circulating water and water delivery pipelines
Refineries and energy facilities: One-way flow protection for medium-temperature media

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Founded in 2013, Bosseal is a professional industrial valve manufacturer based in Suzhou, China. We specialize in the design and production of Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug Valves, and Piping Strainers. All our products are manufactured in strict compliance with international standards, including API, ASME, ISO, DIN, BS, and EN. With a strong focus on quality control and engineering capability, we are committed to providing reliable and high-performance valve solutions for global industrial applications.

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