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The 25mm Anka vacuum breaker admits air into a pipeline when pressure falls below atmospheric pressure. This helps prevent the pipe from being pulled inward as water drains or a pump stops. Once the pressure balances, the valve closes again. Its glass fibre reinforced nylon body is installed upright so the valve can operate correctly.
Glass fibre reinforced nylon.
Pressure: 0-1600kPa at 20°C.
Install in an upright vertical position and keep the air opening unobstructed.
Connections: 25mm (1") connection.
Anka black vacuum breaker valve with vented top and hexagonal ends.