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2.5 mm 316L Press-In Check Valve With Ceramic Ball
This cartridge-style, non-return valve is made with 316L stainless steel and is designed for installation into plastic housings and many common medical fittings. It is 100% performance tested.
Key Product Facts
  • Mounting Configuration: Press-In - Into Plastic
  • Diameter: 2.54 mm
  • Lohm Rate: 750 Lohms
  • Maximum Working Pressure: Dependent on Housing Material
  • Valve Seat Type: Metal
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855 Series 316L Press-In Check Valve With Ceramic Ball
This cartridge-style, non-return valve is made with 316L stainless steel and has a ceramic ball for compatibility with hydrogen and other aggressive fluids. It is 100% performance tested.
Key Product Facts
  • Mounting Configuration: Press-In - Into Plastic
  • Diameter: 7.92 mm
  • Lohm Rate: 75 Lohms
  • Maximum Working Pressure: Dependent on Housing Material
  • Valve Seat Type: Metal
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855 Series 316L Check Valve With Ceramic Ball
This threadless, cartridge-style, one-way valve is made with 316L stainless steel and has a ceramic ball for compatibility with hydrogen and other aggressive fluids. It is 100% performance tested.
Key Product Facts
  • Mounting Configuration: Insert - Into Metal
  • Diameter: 7.95 mm
  • Lohm Rate: 75 Lohms
  • Maximum Working Pressure: Up to 280 Bar
  • Valve Seat Type: Metal
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250 Extreme Environment Check Valve
This zero-leak check valve is designed to withstand high temperatures and pressures for flow rates up to 1.5 GPM. NACE compliant materials are available.
Key Product Facts
  • Poppet-Style Check Valves
  • Diameter: 0.25 inches
  • Lohm Rate: 230 Lohms max
  • Operating Pressures: Up to 15,000 psi
  • Leakage: 0 bubbles / minute at 500-15,000 psid
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375 Extreme Environment Check Valve
This zero-leak check valve is designed to withstand high temperatures and pressures for flow rates up to 2.8 GPM. NACE compliant materials are available.
Key Product Facts
  • Poppet-Style Check Valves
  • Diameter: 0.375 inches
  • Lohm Rate: 125 Lohms max
  • Operating Pressures: Up to 15,000 psi
  • Leakage: 0 bubbles / minute at 500-15,000 psid
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500 Extreme Environment Check Valve
This zero-leak check valve is designed to withstand high temperatures and pressures for flow rates up to 7.8 GPM. NACE compliant materials are available.
Key Product Facts
  • Poppet-Style Check Valves
  • Diameter: 0.5 inches
  • Lohm Rate: 45 Lohms max
  • Operating Pressures: Up to 15,000 psi
  • Leakage: 0 bubbles / minute at 500-15,000 psid
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187 Extreme Environment Check Valve
This zero-leak check valve is designed to withstand high temperatures and pressures for flow rates up to 0.7 GPM. NACE compliant materials are available.
Key Product Facts
  • Poppet-Style Check Valves
  • Diameter: 0.187 inches
  • Lohm Rate: 500 Lohms max
  • Operating Pressures: Up to 15,000 psi
  • Leakage: 0 bubbles / minute at 500-15,000 psid
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187 HFS Check Valve
This valve’s unique design offers both high flow and high pressure capability in a compact package. It is ideal for flow rates up to 2.5 GPM.
Key Product Facts
  • Ball-Style Check Valves
  • Diameter: 0.187 inches
  • Lohm Rate: 120 Lohms max
  • Operating Pressures: Up to 5000 psi
  • Leakage: 1 drop / hour at 5000 psi
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250 HFS Check Valve
This valve’s unique design offers both high flow and high pressure capability in a compact package. It is ideal for flow rates up to 5.6 GPM.
Key Product Facts
  • Ball-Style Check Valves
  • Diameter: 0.25 inches
  • Lohm Rate: 55 Lohms max
  • Operating Pressures: Up to 5000 psi
  • Leakage: 1 drop / hour at 5000 psi
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Field Serviceable Check Valves
The Lee Company’s line of Power Generation Check Valves are designed for use in purge air, water injection, and liquid fuel applications.
Key Product Facts
  • Power Generation Check Valve
  • Diameter: Inline Fitting
  • Lohm Rate: 16 Lohms max
  • Operating Pressures: Up to 1500 psi
  • Leakage: 0 drops / minute
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6.5 mm Press-In Check Valve
This cartridge-style, non-return valve offers optimized flow capacity for its size and is 100% performance tested.
Key Product Facts
  • Mounting Configuration: Press-In - Into Plastic
  • Diameter: 6.60 mm
  • Lohm Rate: 75 Lohms
  • Maximum Working Pressure: Dependent on Housing Material
  • Valve Seat Type: Metal to Metal
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558 LC Series Press-In Check Valve
This cartridge-style, non-return valve offers higher flow capacity over our standard 558 Series valves and is 100% performance tested.
Key Product Facts
  • Mounting Configuration: Press-In - Into Plastic
  • Diameter: 5.46 mm
  • Lohm Rate: 140 Lohms
  • Maximum Working Pressure: Dependent on Housing Material
  • Valve Seat Type: Metal to Metal
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