SMC 406 Series Check Valves

SMC 406 Series Check Valves

These 406 check valves incorporate a plastic poppet with an embedded O-ring that seals on the seat.

  • White polypropylene, natural nylon, or black or natural Kynar® body
  • Buna-N, EPDM or Viton™ seal
  • 302 SS spring
  • Cracking pressure: 0.25 psi or 1 psi
  • Natural or white inlets & black outlets on polypropylene & nylon
  • Chemical resistant
  • Maximum operating pressure: 125 psi
  • Maximum operating temperature: 140°F
  • Cv: 0.4 with 1/4 barb ends
  • Made in the USA
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Item # Description Catalog Pg. Price Add to Cart
1/8" Hose Barb x 1/8" Hose Barb Series 406 Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
Item 22619
1/8" Hose Barb x 1/8" Hose Barb Series 406 Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
11.9/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
11.9/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
Item 22620
3/16" Hose Barb x 3/16" Hose Barb Series 406 Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
11.9/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
11.9/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
Item 22621
1/4" Hose Barb x 1/4" Hose Barb Series 406 Black Kynar® Check Valve with 1 psi Spring & Viton™ Seal
11.9/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
11.9/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Natural Kynar® Check Valve with 1 psi Spring & Viton™ Seal
Item 22622
3/8" Hose Barb x 3/8" Hose Barb Series 406 Natural Kynar® Check Valve with 1 psi Spring & Viton™ Seal
11.33/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
11.33/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22570
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
Item 22571
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22572
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
Item 22573
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
Item 22574
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
Item 22575
1/8" Hose Barb x 1/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
Special Order
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22576
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
Item 22577
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22578
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
Item 22579
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
Item 22580
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
Item 22581
3/16" Hose Barb x 3/16" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
Special Order
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22582
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
Item 22583
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22584
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
Item 22585
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
Item 22586
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
Item 22587
1/4" Hose Barb x 1/4" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22588
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
Item 22589
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22590
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
Item 22591
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
Item 22592
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
Item 22593
3/8" Hose Barb x 3/8" Hose Barb Series 406 Polypropylene Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22594
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
Item 22595
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22596
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Buna-N Seal
Item 22597
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
Item 22598
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
Item 22599
1/8" Hose Barb x 1/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon check Valve with 0.25 psi Spring & Buna-N Seal
Item 22600
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
Item 22601
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon check Valve with 1 psi Spring & Buna-N Seal
Item 22603
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
Item 22604
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22602
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
Special Order
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22606
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
Item 22607
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22608
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Buna-N Seal
Item 22609
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
Item 22611
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
Item 22612
1/4" Hose Barb x 1/4" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
Item 22605
3/16" Hose Barb x 3/16" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
Special Order
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
Item 22614
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & EPDM Seal
6.73/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
In Stock
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
Item 22615
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Viton™ Seal
7.13/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
Special Order
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Buna-N Seal
Item 22616
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Buna-N Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
Item 22617
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & EPDM Seal
6.73/Each
Special Order
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Special Order
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Buna-N Seal
Item 22613
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 0.25 psi Spring & Buna-N Seal
6.73/Each
Out of Stock (On Order)
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
6.73/Each
Out of Stock (On Order)
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
Item 22618
3/8" Hose Barb x 3/8" Hose Barb Series 406 Nylon Check Valve with 1 psi Spring & Viton™ Seal
7.13/Each
In Stock
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
 P-257
7.13/Each
In Stock

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