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Vent Valves

4.5 mm Press-in Vent Valve

This cartridge-style valve (also known as a bleeder valve) provides an innovative solution to removing trapped air within a pressurized system to increase system efficiencies while minimizing hydraulic losses. The valve’s unique design provides simple press-in installation into plastic housings and fittings, helping to ensure retention and prevent any bypass leakage. Normally closed, the valve can be customized to allow air admittance if required for thermal management.

Key Product Facts
  • Mounting Configuration:Press-In - Into Plastic
  • Diameter:4.69 mm
  • Lohm Rate:1100 Lohms max.
  • Maximum Working Pressure:Dependent on Housing Material

Product Information

General Performance
Characteristic Specification
Lohm Rate 1100 Lohms
Cracking / Opening Pressure Uprun pressure at which the valve will flow more than 50 SCCM of air
Shut-Off Pressure Uprun pressure at which the valve will flow less than 20 SCCM of air
Leakage Vent valves are normally closed. Specials available as normally open versions for air admittance.
Maximum Working Pressure Dependent on Housing Material, Configuration, and Operating Conditions
Materials
COMPONENT MATERIAL
Body 303 Stainless Steel
Cage 303 Stainless Steel
Spring 302 Stainless Steel
Ball 440C Stainless Steel
Flow Curves
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 CRACKING / OPENING PRESSURE FLOW POINT - MINIMUM FLOW (REF.) FLOW POINT - PRESSURE SHUT-OFF PRESSURE APPROXIMATE WEIGHT INSTALLATION HOLE DRAWING NUMBER Request Information
CCVP4500120S 10 ± 5 kPa (1.5 ± 0.7 psid) 5 SLPM 60 ± 10 kPa (8.7 ± 1.5 psid) 120 ± 30 kPa (17.4 ± 4.4 psid) 0.57 grams 1INST055825S Request
CCVP4500290S 50 ± 30 kPa (7.3 ± 4.4 psid) 10 SLPM 200 ± 10 kPa (29.0 ± 1.5 psid) 290 ± 60 kPa (42.1 ± 8.7 psid) 0.57 grams 1INST055825S Request
CCVP4500540S 100 ± 30 kPa (14.5 ± 4.4 psid) 17 SLPM 400 ± 10 kPa (58.0 ± 1.5 psid) 540 ± 120 kPa (78.3 ± 17.4 psid) 0.57 grams 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.