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Check Valves

5.5 mm Press-In 316L Check Valve

This cartridge-style, non-return valve is made with medical grade 316L stainless steel and a ceramic ball for improved compatibility with aggressive fluids and gases. This valve is designed specifically for installation into plastic housings, fittings, or soft tubing. The valve can be installed in either direction, providing forward or reverse flow capabilities. The valve features a high quality metal seat that 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:5.46 mm
  • Lohm Rate:250 Lohms
  • Maximum Working Pressure Differential:Dependent on Housing Material
  • Valve Seat Type:Metal

Product Information

General Performance
Characteristic Specification
Lohm Rate 250 Lohms
Leakage 10 SCCM max. at 172 kPa (25 psid) on air
Cracking Pressure Definition Is the uprun pressure at which the valve will flow more than 50 SCCM of air.
Maximum Working Pressure Differential Dependent on Housing Material, Configuration, and Operating Conditions
Materials
COMPONENT MATERIAL
Body 316L Stainless Steel
Cage 316L Stainless Steel
Spring 316L Stainless Steel
Ball Ceramic
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 BALL MATERIAL INSTALLATION HOLE DRAWING NUMBER APPROXIMATE WEIGHT Request Information
CCPI5540000S 250 Lohms 0 kPa (No Spring) Ceramic 1INST006189S 0.65 grams Request
CCPI5540007S 250 Lohms 7 ± 5 kPa (1 ± 0.7 psid) Ceramic 1INST006189S 0.65 grams Request
CCPI5540014S 250 Lohms 14 ± 5 kPa (2 ± 0.7 psid) Ceramic 1INST006189S 0.65 grams Request
CCPI5540040S 250 Lohms 40 ± 15 kPa (6 ± 2.2 psid) Ceramic 1INST006189S 0.65 grams Request

Installation & Accessories

Installation & Manufacturing Tools
Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CCRT0900170S 5.5 mm Press-In Valve Installation Tool

CAD Envelopes

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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.