Breather Valve

We CAPRO VALVES manufacture and sell breather valve which is a type of safety valve typically used in tanks, vessels, or containers that store liquids or gases. Its primary function is to maintain the pressure inside the tank within safe operating limits, preventing it from becoming too high or too low. It achieves this by allowing air or gas to enter or escape the tank in response to changes in pressure.

Our Breather valves are popular and commonly used in
industries like :


Oil and Gas : For storing petroleum products and chemicals.

Pharmaceutical : For controlled environments where contamination must be avoided.

Food and Beverage : To prevent pressure build-up or vacuum formation in storage tanks.

Chemical Manufacturing : Where the storage of volatile chemicals requires pressure regulation.

Specifications :


SIZE : 50 mm to 500 mm

BODY MATERIAL : Cast Aluminium, WCB, CF8(304) CF8M(316)

SEATS AND PALLETS : AISI 304, AISI 316

BIRD SCREEN AND GUIDES : 18/8 stainless steel

DIAPHRAGMS : FEP,PT.FE, BUNA-N,VITON etc

FLANGES : ANSI 150, Drilled to UNI PN 10 on request

MAIN FEATURES : Replaceable seats, Antifreezing pallets the drip around the pallet avoids condensate collecting around the seat, Pallet guides located above the seat this arrangement assures a no-jamming guide of the pallet not affected by contaminant fluids as a close coupling between pallet and guides is not necessary.Bird screen avoids the entering of foreign elements,setting any setting available,charging the pallet’s dead weight load, between +- 20 mm H20 AND +- 400 mmH20 ( ON REQUEST HIGHER SETS)