Swing Check Valve True Union


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Swing Check Valve True Union 

Please note this product is Schedule 80 (sch80) and not compatible to sch40, or DIN standards

Swing Check Valve True Union allow one directional water flow and are used to prevent back flow and siphoning. They are commonly used on return pump outputs to prevent water overflowing the sump in the event of a power outage, pump failure or maintenance. These are among the highest quality check valves to be found with minimal pressure loss. The true union check valve is specially designed to be disassembled by unscrewing the nuts in line leaving the tail pieces cemented to the pipe, thus allowing you to remove the body for repairs, or cleaning. These Swing Check Valve True Union fit the Schedule 40 plumbing system.

Plumbing Tips: 

Plan your plumbing on paper Don’t skimp on unions. Unions allow for easy breakdown and maintenance as well as remove the need for precise elbow placement. Use them as often as possible. When in doubt order extra. We happily accept returns for a full refund (less shipping) on all unused fittings within one month of purchase. A few extra bucks in return shipping is less frustrating than a project delay.


Pipe Size: 20mm

Fitting End Type: Slip

Fitting Size (mm): 140 (L) x 55 Dia

Pipe Size: 25mm

Fitting End Type: Slip

Fitting Size (mm): 170 (L) x 65 Dia

Pipe Size: 40mm

Fitting End Type: Slip

Fitting Size (mm): 205 (L) x 85 Dia

Pipe Size: 50mm

Fitting End Type: Slip

Fitting Size (mm): 245 (L) x 105 Dia

Additional information


20mm, 25mm, 40mm, 50mm