SMC 415 Series 1/4" Brass Check Valves

The 415 Piston Check Valve incorporates a piston with an embedded O-ring that seals on the seat. Pressure in the flow direction moves the piston and seal off the seat and exposes the cross holes in the piston. Flow arrows on the body will point from inlet to outlet.

  • Brass body & piston
  • Viton™, Buna-N or EPDM seals
  • Beryllium copper retainer
  • Good for a wide range of air & fluid applications
  • .203" diameter through hole in ball
  • Positive seal at low back pressure or slight vacuum
  • Cracking pressure: 1/3 psi or 1 psi
  • Maximum pressure: 500 psi
  • Maximum temperature: 250°F (Buna-N), 300°F (EPDM) & 375°F (Viton™)
  • Made in the USA
Stock Description Catalog Pg. Price
1/4" FNPT  x 1/4" FNPT Series 415 Brass Check Valve with Buna-N Seals - 1 PSI
22400
1/4" FNPT x 1/4" FNPT Series 415 Brass Check Valve with Buna-N Seals - 1 PSI
$11.12​/Each
Save 5%10+$10.56/Each
Save 10%20+$10.00/Each
Save 15%60+$9.45/Each
P-403
$11.12​/Each
In Stock
1/4" FNPT  x 1/4" FNPT Series 415 Brass Check Valve with Buna-N Seals - 1/3 PSI
22401
1/4" FNPT x 1/4" FNPT Series 415 Brass Check Valve with Buna-N Seals - 1/3 PSI
$11.12​/Each
Save 5%10+$10.56/Each
Save 10%20+$10.00/Each
Save 15%60+$9.45/Each
P-403
$11.12​/Each
In Stock
1/4" FNPT  x 1/4" FNPT Series 415 Brass Check Valve with EPDM Seals - 1 PSI
22402
1/4" FNPT x 1/4" FNPT Series 415 Brass Check Valve with EPDM Seals - 1 PSI
$11.86​/Each
Save 5%10+$11.26/Each
Save 10%20+$10.67/Each
Save 15%60+$10.08/Each
P-403
$11.86​/Each
In Stock
1/4" FNPT  x 1/4" FNPT Series 415 Brass Check Valve with Viton™ Seals - 1 PSI
22403
1/4" FNPT x 1/4" FNPT Series 415 Brass Check Valve with Viton™ Seals - 1 PSI
$11.86​/Each
Save 5%10+$11.26/Each
Save 10%20+$10.67/Each
Save 15%60+$10.08/Each
P-403
$11.86​/Each
In Stock
1/4" FNPT  x 1/4" FNPT Series 415 Brass Check Valve with Viton™ Seals - 1/3 PSI
22404
1/4" FNPT x 1/4" FNPT Series 415 Brass Check Valve with Viton™ Seals - 1/3 PSI
$11.86​/Each
Save 5%10+$11.26/Each
Save 10%20+$10.67/Each
Save 15%60+$10.08/Each
P-403
$11.86​/Each
In Stock