Delivery Line Check Valves for Planters & Applicators

Check Valves with Push Connect Fittings

For Planter & Applicator Delivery Lines

John Blue offers delivery line check valves for your planter and applicators – now available with Push Connect Fittings. Our check valves are easier to service and clean in the field. Stop your delivery lines from draining and put your fertilizer where the plants need it the most.


Flow Rates vs Pressure
Inlet PressureFlow
5 psi1.25 GPM
15 psi2.65 GPM
29 psi4.00 GPM
*Test used anti-freeze and CV-1101 with 3/8” hose barbs at 70°F


  • Now available with Push Connect Fittings.
  • New and improved check valve.
  • Easy to clean.
  • Repairable. Easier to service in the field.
  • Available in 1, 3 and 10 psi.
  • Precision molded in glass-reinforced polypropylene.
  • 316 stainless steel spring and ball.
  • All Viton® seals.


DescriptionModel – 1 PSIModel – 3 PSI
Poly Check Valve, 1/4″ NPT Female Inlet and OutletCV-1101CV-1103
Poly Check Valve, 1/4″ Push Connect Inlet and OutletCV-1101-P14CV-1103-P14
Poly Check Valve, 5/16″ Push Connect Inlet and OutletCV-1101-P56CV-1103-P56
Poly Check Valve, 3/8″ Push Connect Inlet and OutletCV-1101-P38CV-1103-P38
Poly Check Valve, 1/4″ Hose Barbs Inlet and Outlet, replaces 115284-01CV-1101-B14CV-1103-B14
Poly Check Valve, 3/8″ Hose Barbs Inlet and Outlet, replaces 115285-01CV-1101-B38CV-1103-B38
Poly Check Valve, 1/2″ Hose Barbs Inlet and Outlet, replaces 115286-01CV-1101-B12CV-1103-B12


3 PSI spring and 11/16″ straight inlet/outlet threads are available.