HAV Series Tri-Clamp Air Relief Valve

HAV Series Tri-Clamp Air Relief Valve - Effective Air Removal Without Product Loss

The HAV Series Tri-Clamp Air Relief Valve is designed for applications where removing air from a line without losing valuable product is essential. This valve operates using a ferrule, housing with a polymer ball, and a vent pipe, all connected via standard tri-clamps. Its double-seated design ensures air cannot enter the line under negative pressure. At the same time, the valve opens slightly under vacuum conditions to prevent the entire line from draining too quickly.

Ideal for applications where air pockets form in tube lines or on the suction side of pumps, the HAV Series Air Relief Valve automatically bleeds air before the pump starts, preventing air from binding to the liquid and stopping cavitation. This valve is not designed for liquids with a specific gravity of less than 1.0.

This product is available through Dixon Group Canada, which has 16 distribution warehouses across North America. In case of any back orders, we will notify customers promptly and make every effort to ship from the warehouse closest to the customer for faster delivery and convenience.

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HAV Series Tri-Clamp Air Relief Valve Key Features:

• Available in sizes 1-1/2" to 2".
• No special tools required for installation or maintenance.
• Replaceable ball and gaskets for extended usability.
• Valve seals are reliable for both pressure and vacuum applications.
• Constructed from FDA, 3A-approved polypropylene ball (PTFE ball available).
• 3A certified when used with a 180° elbow.

Materials:

• Product Contact Components: 304 stainless steel.
• Ball: Polypropylene (standard) or PTFE (optional).
• Gasket: EPDM (standard), other materials available upon request.

Specifications:

• Maximum Operating Temperature: 212°F (100°C).
• Maximum Operating Pressure: 145 PSI.
• Surface Finish: Internal product contact surface finish ≤ 32 Ra, with other finishes available upon request.
• Product Literature:  Product Reference Guide
• Certifications: 3A Certification (180° elbow only)
• Catalog Page: DPL424-759

Applications:

• Bleeding air from tube lines where air pockets form, typically installed at the top of the line.
• Bleeding the suction side of pumps, ensuring a vacuum is established and preventing cavitation before the pump starts.

How It Works: The HAV Series Tri-Clamp Air Relief Valve removes air from a line or container without letting the liquid flow. The double-seated valve, featuring a freely moving polypropylene ball, opens or closes depending on pressure conditions. Even under negative pressure, the design prevents air from entering the line or container, maintaining system integrity.