1/2" Solar Air Vent Zoom

1/2" Solar Air Vent


Brand: Caleffi

Qty Price
/ each
$287.75 / box (5 units x $57.55)
Non-Stock ItemAllow 7-10 Days to Ship Out



Size: 1/2"
System Type: Hydronic (Water)
Body Pattern: Straight
Material: Brass
Mount: Straight
Adjustability: Non-Adjustable
Type: Float-Style
Thread Type: Female
Max Temp (F): 320ºF
Temperature Range (F): -22° to 320°F
Min Temp (F): -22°F
Thread Size: 1/2"
Max Pressure (PSI): 145
Max Venting Pressure (PSI): 145

Description for Caleffi 251004A

Caleffi Air Vents are used in air-conditioning systems or in the phase of filling and starting solar heating systems to discharge even large quantities of air that has formed in the circuits. This function is performed even when there is considerable pressure thanks to the special geometry of the discharge mechanism, which is identical to the one on DISCAL 551 series deaerators. This particular series of automatic air vent valves has been specifically designed to work at high temperature with a glycol medium, which is typical of solar heating systems.

1/2" Solar Air Vent

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  • 1/2" Solar Air Vent


    Can the valve be used in open loop, potable water solar hot water systems meeting no lead requirements?
    Asked on 9/2/2016 by af4solar from Alameda,CA

    1 answer



      Caleffi does not list this product or the shut off valve as low lead compliant.

      Answered on 9/8/2016 by SupplyHouse Staff from NY
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