Cast Iron Swing Check Valve PN16 Flanged, EPDM Seat for Backflow Prevention
This Cast Iron Swing Check Valve is a reliable, self-acting non-return valve designed to prevent reverse flow in pumping systems, water mains, process pipelines, and other pressurised fluid networks. Built with robust cast iron construction, PN16-rated flanged ends, and a resilient EPDM seat, this valve ensures tight sealing, long service life, and dependable performance across a wide range of liquid-handling applications.
Its swing-type mechanism allows for full flow with minimal resistance in the forward direction, while closing immediately under reverse flow, protecting pumps and pipework from pressure surges and backflow damage.
Key Features:
Durable Cast Iron Body Engineered for long-lasting use under pressure
Flanged PN16 Connections Easy to install into standard pipework systems
EPDM Seat Offers excellent sealing and chemical resistance for water and process fluids
Self-Closing Swing Disc Prevents backflow without external control or power
Low Head Loss Design Allows free-flowing operation with minimal pressure drop
Silent Operation Quiet closure avoids water hammer in sensitive systems
Top Access Cover Simplifies inspection and maintenance
Ideal Applications Include:
Clean Water & Potable Water Networks
Pumping Stations & Booster Sets
Irrigation & Agricultural Systems
Industrial Water Treatment Plants
HVAC & Closed Loop Circuits
Wastewater Transfer (non-slurry)
Rainwater & Stormwater Management Systems
Technical Specifications:
Valve Type: Swing Check / Non-Return Valve
Body Material: Cast Iron (EN-GJL-250 or equivalent)
Sealing Seat: EPDM resilient, flexible, and chemical-resistant
Flange Rating: PN16 (16 bar pressure)
Temperature Range: -10°C to +120°C (depending on fluid and system)
Sizes Available: DN50 to DN300+ (contact us for larger diameters)

Reliable Backflow Prevention for Pressurised Fluid Systems
Whether you're protecting pumps, maintaining flow direction in a process line, or installing a non-return solution for a water supply system, this PN16-rated Cast Iron Swing Check Valve is the industry-standard choice. With its resilient EPDM seat and robust body, it ensures dependable, maintenance-friendly operation in any environment.
Need expert guidance on specifying the right check valve?
Speak to the team at Henry Pumps were here to help.
sales@henrypumps.co.uk
0333 050 3748
Customer reviews
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Condition:New
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Product Code:LV5170A-2
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Weight:11kg
Buy with confidence
At Henry Pumps, we support residential, commercial, and industrial customers, from homeowners and landlords to contractors and facilities teams. Based in Derbyshire, we help solve flooding, drainage, and water management challenges across the UK. Every pump we supply is chosen for proven reliability and performance, backed by expert, straightforward advice you can trust. Whether you’re maintaining a property, managing a building, or dealing with an urgent issue, we’ll help you find the right solution.



