Diaphragm Check Valves

CV Series - Straight Shaft Check Valves

These low-pressure straight shaft or port (non-barbed) plastic diaphragm check valves provide backflow protection for fluid, air, gas and vacuum flows in a very broad range of applications.

Choose between nylon, polypropylene or PVDF (Kynar®) body materials. EPDM, fluorosilicone (FVMQ), silicone or Viton™ (FKM or FPM) diaphragm material options. 1/8” flexible tubing inner diameter (ID) connections.

Highly reliable performance
Can be installed in any position for maximum flexibility
Free-floating diaphragms respond to the slightest pressure change
Very rapid response times between free-flow and no-flow conditions
Designed to perform at high (automotive) industry standards but very economical

CV Series - Single Barb Check Valves

These low-pressure single barb hose barbed plastic diaphragm check valves provide backflow protection for fluid, air, gas and vacuum flows in a very broad range of applications.

Choose between nylon, polypropylene or PVDF (Kynar®) body materials. EPDM, epichlorohydrine (ECO), fluorosilicone (FVMQ), or Viton™ (FKM or FPM) diaphragm material options. 3/16", 1/4", 5/16" or 3/8" flexible tubing inner diameter (ID) connections.

Highly reliable performance
Can be installed in any position for maximum flexibility
Free-floating diaphragms respond to the slightest pressure change
Very rapid response times between free-flow and no-flow conditions
Designed to perform at high (automotive) industry standards but very economical

CV Series - Triple Barb Check Valves

These low-pressure triple barb hose barbed plastic diaphragm check valves provide backflow protection for fluid, air, gas and vacuum flows in a very broad range of applications.

Choose between nylon or PVDF (Kynar®) body materials. Epichlorohydrin (ECO) or Viton™ (FKM or FPM) diaphragm material options. 3/8" flexible tubing inner diameter (ID) connections.

Highly reliable performance
Can be installed in any position for maximum flexibility
Free-floating diaphragms respond to the slightest pressure change
Very rapid response times between free-flow and no-flow conditions
Designed to perform at high (automotive) industry standards but very economical

Miniature Floating Disk Check Valves

Miniature check valves will prevent flow in one direction and facilitate flow in the opposite direction. Check valves are sometimes called non-return valves. Floating disk style check valves have a disk that will change position inside of the body with the flow of media. In the forward direction, the media is able to flow around the disk. In the reverse direction, the disk is pushed against the seat and prevents flow.

CVN/CVP/CVK Series - Precision Molded Check Valves

Inlet: 1/8" to 3/8" Hose Barb, 1/8" Male NPT
Outlet: 1/8" to 3/8" Hose Barb
Available with Silicone, Viton and Neoprene diaphragm
Body materials include Nylon, Polycarbonate, Kynar and Polypropylene
All parting lines on the critical sealing surfaces have been eliminated
After molding, check valves are assembled using a non-toxic technique without the use of foreign materials

Performance Characteristics

Crack: 1/2 psi
Seal: 1.9 psi
Max Pressure: 50 psi

CVRT Series - High Flow Check Valves

1/8” to 3/8” Hose Barb
Acrylic body with a silicone seal

LCVA Series - Luer Check Valves

Male Luer Lock, Male Slip Luer and Female Luer Thread connections
Polycarbonate body with a silicone seal

BCV Series - Diaphragm Check Valves

Barbed Check Valves feature 3/32" and 1/8" Hose Barbs available in equal, reducing and barb to male or female luer configurations
These check valves feature DEHP and latex free silicone diaphragms and are offered in MABS and SAN housings
All materials satisfy USP Class VI and ISO 10993 criteria

Luer Check Valves

Materials available: MABS, Acrylic or Polycarbonate
Latex free with a silicone rubber diaphragm

Diaphragm Check Valves Options