1/2" BSP Brass Anti Vacuum Valve

**CLEARANCE ITEM - OLD SURPLUS WAREHOUSE STOCK - LIMITED AVAILABILITY**

Anti-Vacuum Valves are used to protect drying cylinders, calorifiers and tankers from collapse due to internal vacuum. Vacuum valves are normally fitted vertically, at the top of the vessel or pipeline being protected. 

• 1⁄2″ MBSP Anti-Vacuum Valve
• Automatic protection against a vacuum forming in hot water installation
• Solid brass body for long life
• Suitable for hot water use only

The original manufacturer's warranty does not apply to old surplus warehouse stock being sold by HSB Technical Services Ltd in our clearance section. Therefore, in the event of a request for return we cannot offer a replacement item(s), please bear this in mind before purchase. All items (unless otherwise stated) are brand new, unused, surplus stock.