We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
Instrumentation Valves

Ham-Let Group features are wide variety of valves for many uses, including needle valves, ball valves, check valves, and relief valves. Our valves span a wide range of temperature and pressure ratings.
Filter
Now Shopping by
Shopping Options
- Body Material Stainless Steel 316 Remove This Item
- H400SSL6MM1/3PSIEP$84.46Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 6mm Let-Lok Tube Fitting x 6mm Let-Lok Tube Fitting, EPDM O-Ring, 1/3 PSI Cracking Pressure Learn More - H400SSL6MM1/3PSI$80.45Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 6mm Let-Lok Tube Fitting x 6mm Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, 1/3 PSI Cracking Pressure Learn More - H400SSL6MM1/3PSEPOC$97.14Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 6mm Let-Lok Tube Fitting x 6mm Let-Lok Tube Fitting, EPDM O-Ring, Oxigen Clean, 1/3 PSI Cracking Pressure Learn More - H400SSL3/85PSIPT$169.60Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, PTFE O-Ring, 5 PSI Cracking Pressure Learn More - H400SSL3/85PSIOC$177.28Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, Oxigen Clean, 5 PSI Cracking Pressure Learn More - H400SSL3/85PSI$154.18Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, 5 PSI Cracking Pressure Learn More - H400SSL3/850PSI$154.18Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, 50 PSI Cracking Pressure Learn More - H400SSL3/83PSIPT$169.60Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, PTFE O-Ring, 3 PSI Cracking Pressure Learn More - H400SSL3/83PSIKZ$246.67Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Perfluor O-Ring, 3 PSI Cracking Pressure Learn More - H400SSL3/83PSI$154.18Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, 3 PSI Cracking Pressure Learn More - H400SSL3/825PSI$154.18Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, 25 PSI Cracking Pressure Learn More - H400SSL3/81PSINE$161.88Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Polychloroprene (CR) O-Ring, 1 PSI Cracking Pressure Learn More - H400SSL3/81PSILF$177.30Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, Lubricant Free, 1 PSI Cracking Pressure Learn More - H400SSL3/81PSIKZ$246.67Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Perfluor O-Ring, 1 PSI Cracking Pressure Learn More - H400SSL3/81PSIEP$161.88Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, EPDM O-Ring, 1 PSI Cracking Pressure Learn More - H400SSL3/81PSI$154.18Standard, Fixed Cracking Pressure Check Valve
H400 Series, SS Check Valve, 3/8" Let-Lok Tube Fitting x 3/8" Let-Lok Tube Fitting, Fluorcarbon FKM O-Ring, 1 PSI Cracking Pressure Learn More














