NIBCO® Chemtrol® TruUnion Ball Check Valves
NIBCO® Chemtrol® TruUnion Ball Check Valves

NIBCO® Chemtrol® TruUnion Ball Check Valves

The Chemtrol® True Union ball check valve stops the flow of media in one direction while allowing flow in the opposite direction, with minimum turbulence and chatter while maintaining pump prime. Ball supported by a system of guide ribs to give full flow with minimum turbulence and chatter. Equally effective in checking backflow from head pressure on the discharge or suction side of pump.

  • PVC or CPVC
  • FKM seals, O-rings & ball seats
  • Design insures free movement of the ball
  • 2 pound positive back pressure
  • Requires only inches of head pressure to seal & open
  • Seating head: 6-7 psi (1/2" & 3/4"), 4-5 psi (1"-2") & 3-4 psi (3")
  • Maximum temperature: 140°F (PVC) & 210°F (CPVC)
  • NSF listed
  • Foot valve screens assemblies sold separately
Stock Description Catalog Pg. Price
1/2" PVC Check Valve with Threaded and Socket Ends
18291
$55.81​/Each
Save 5%2+$53.02/Each
Save 10%4+$50.22/Each
Save 15%12+$47.43/Each
P-434
$55.81​/Each
1-1/4" PVC Check Valve with Threaded and Socket Ends
18294
$130.06​/Each
Save 5%2+$123.55/Each
Save 10%4+$117.05/Each
Save 15%12+$110.55/Each
P-434
$130.06​/Each
1" PVC Check Valve with Threaded and Socket Ends
18293
$77.85​/Each
Save 5%2+$73.95/Each
Save 10%4+$70.06/Each
Save 15%12+$66.17/Each
P-434
$77.85​/Each
3/4" PVC Check Valve with Threaded and Socket Ends
18292
$75.01​/Each
Save 5%2+$71.26/Each
Save 10%4+$67.50/Each
Save 15%12+$63.75/Each
P-434
$75.01​/Each
1-1/2" PVC Check Valve with Threaded and Socket Ends
18295
$130.06​/Each
Save 5%2+$123.55/Each
Save 10%4+$117.05/Each
Save 15%12+$110.55/Each
P-434
$130.06​/Each
3" PVC Check Valve with Socket Ends
18307
$490.22​/Each
Save 5%2+$465.70/Each
Save 10%4+$441.19/Each
Save 15%12+$416.68/Each
P-434
$490.22​/Each
3" PVC Check Valve with Threaded Ends
18297
$490.22​/Each
Save 5%2+$465.70/Each
Save 10%4+$441.19/Each
Save 15%12+$416.68/Each
P-434
$490.22​/Each
2" PVC Check Valve with Threaded and Socket Ends
18296
$176.94​/Each
Save 5%2+$168.09/Each
Save 10%4+$159.24/Each
Save 15%12+$150.39/Each
P-434
$176.94​/Each
1" CPVC Check Valve with Threaded and Socket Ends
18273
$120.52​/Each
Save 5%2+$114.49/Each
Save 10%4+$108.46/Each
Save 15%12+$102.44/Each
P-434
$120.52​/Each
3/4" CPVC Check Valve with Threaded and Socket Ends
18272
$101.63​/Each
Save 5%2+$96.54/Each
Save 10%4+$91.46/Each
Save 15%12+$86.38/Each
P-434
$101.63​/Each
1/2" CPVC Check Valve with Threaded and Socket Ends
18271
$85.55​/Each
Save 5%2+$81.27/Each
Save 10%4+$76.99/Each
Save 15%12+$72.71/Each
P-434
$85.55​/Each
1-1/2" CPVC Check Valve with Threaded and Socket Ends
18275
$206.42​/Each
Save 5%2+$196.09/Each
Save 10%4+$185.77/Each
Save 15%12+$175.45/Each
P-434
$206.42​/Each
3" CPVC Check Valve with Socket Ends
18287
$748.06​/Each
Save 5%2+$710.65/Each
Save 10%4+$673.25/Each
Save 15%12+$635.85/Each
P-434
$748.06​/Each
3" CPVC Check Valve with Threaded Ends
18277
$748.06​/Each
Save 5%2+$710.65/Each
Save 10%4+$673.25/Each
Save 15%12+$635.85/Each
P-434
$748.06​/Each
2" CPVC Check Valve with Threaded and Socket Ends
18276
$278.96​/Each
Save 5%2+$265.01/Each
Save 10%4+$251.06/Each
Save 15%12+$237.11/Each
P-434
$278.96​/Each
1/2" PVC Foot Valve Screen Assembly for 18291
19430
$47.95​/Each
Save 5%2+$45.55/Each
Save 10%4+$43.15/Each
Save 15%12+$40.75/Each
P-434
$47.95​/Each
3/4" PVC Foot Valve Screen Assembly for 18292
19440
$58.42​/Each
Save 5%2+$55.49/Each
Save 10%4+$52.57/Each
Save 15%12+$49.65/Each
P-434
$58.42​/Each
1" PVC Foot Valve Screen Assembly for 18293
19450
$78.90​/Each
Save 5%2+$74.95/Each
Save 10%4+$71.01/Each
Save 15%12+$67.06/Each
P-434
$78.90​/Each
1-1/4" & 1-1/2"  PVC Foot Valve Screen Assembly for 18294 & 18295
19470
$135.87​/Each
Save 5%2+$129.07/Each
Save 10%4+$122.28/Each
Save 15%12+$115.49/Each
P-434
$135.87​/Each
2" PVC Foot Valve Screen Assembly for 18296
19490
$163.51​/Each
Save 5%2+$155.33/Each
Save 10%4+$147.15/Each
Save 15%12+$138.98/Each
P-434
$163.51​/Each
3" PVC Foot Valve Screen Assembly for 18297
19500
$193.00​/Each
Save 5%2+$183.35/Each
Save 10%4+$173.70/Each
Save 15%12+$164.05/Each
P-434
$193.00​/Each

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