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Check Valves

558 Series 316L Press-In Check Valve With Ceramic Ball

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: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
Maximum Working Pressure 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 Request Information
CCPI5540000S 250 Lohms 0 kPa (No Spring) Ceramic 1INST006189S Request
CCPI5540007S 250 Lohms 7 ± 5 kPa (1 ± 0.7 psid) Ceramic 1INST006189S Request
CCPI5540014S 250 Lohms 14 ± 5 kPa (2 ± 0.7 psid) Ceramic 1INST006189S Request
CCPI5540040S 250 Lohms 40 ± 15 kPa (6 ± 2.2 psid) Ceramic 1INST006189S Request

Installation & Accessories

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