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Flow Metering Valves

558 Series Press-In Restrictor Check Valve

IMH Press-in Restrictor Check Valves are, functionally, an orifice in series with a check valve, all in one 5.5mm diameter, cartridge-style package. These valves are designed for installation into plastic housings and fittings or soft tubing. Their unique barbed design provides easy “press-in” installation ensuring retention and prevents any by-pass leakage around the valve. The valves are all stainless steel construction providing compatibility with a wide range of fluids and gases and contain a high-quality metal to metal seat for low leakage, highly repeatable cracking pressures and long life. All valves are 100% flow tested for consistent batch to batch performance.

Key Product Facts
  • Cracking Pressure: 40 ± 30 kPa (6 ± 4.4 psid)
  • 100% Flow Tested
  • Metered Flow Lohm Rate Tolerance: ±5%
  • Combines Hydraulic Functions Simplifying Manifold Design
  • Unique Barbed Design for Installation into Plastic
Part Numbers
COPM5501004S, COPM5501005S, COPM5501006S, COPM5501008S, COPM5501010S, COPM5501012S, COPM5501015S, COPM5501020S

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From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.