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Check Valves

4.5 mm Press-In Check Valve

This cartridge-style, non-return valve offers optimized flow capacity for its size. The unique barbed design provides easy “press-in” installation into plastic housings and fittings which ensures retention and prevents any bypass leakage. The valve can be installed in either direction, providing forward or reverse flow capabilities. The valve’s all-stainless steel design provides compatibility with a wide range of fluids and gases. A high-quality metal seat provides low leakage, repeatable cracking pressure, and long life. The valve is 100% functionally tested to ensure performance.

Key Product Facts
  • Mounting Configuration:Press-In - Into Plastic
  • Diameter:4.69 mm
  • Lohm Rate:250 Lohms
  • Maximum Working Pressure:Dependent on Housing Material
  • Valve Seat Type:Metal to Metal

Product Information

General Performance
Characteristic Specification
Lohm Rate 250 Lohms
Leakage 10 SCCM (max) at 172 kPa (25 psid) on Air
Maximum Working Pressure Dependent on Housing Material, Configuration, and Operating Conditions
Materials
COMPONENT MATERIAL
Body 303 Stainless Steel
Cage 305 Stainless Steel
Spring 302 Stainless Steel
Ball 440C Stainless Steel
Flow Curve
Cross Section View
Dimensional View
Installation Hole Details

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Part Numbers & Specifications
PART NUMBER LOHM RATE CRACKING PRESSURE INSTALLATION HOLE DRAWING NUMBER Request Information
CCPI4510000S 250 Lohms 0 kPa (No Spring) 1INST055825S Request
CCPI4510004S 250 Lohms 4 ± 3 kPa (0.6 ± 0.4 psid) 1INST055825S Request
CCPI4510007S 250 Lohms 7 ± 5 kPa (1 ± 0.7 psid) 1INST055825S Request
CCPI4510014S 250 Lohms 14 ± 5 kPa (2 ± 0.7 psid) 1INST055825S Request
CCPI4510040S 250 Lohms 40 ± 15 kPa (6 ± 2.2 psid) 1INST055825S Request
CCPI4510069S 250 Lohms 69 ± 17.3 kPa (10 ± 2.5 psid) 1INST055825S Request

Installation & Accessories

Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CCRT0055034S Forward 4.5 mm Press-In Installation Tool
CCRT0055036S Reverse 4.5 mm Press-In Installation Tool

CAD Envelopes

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Questions?

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.