Altecnic 3/4 FxF Ballstop Ball Valve and Check Valve 333500

The Altecnic 3/4 FxF Sw Ballstop Ball Valve and Check Valve is a combined isolation and non-return valve for heating and hot water circuits. It combines a ballstop ball valve for isolating the line with a check valve that prevents reverse flow through the pipework. It sits within the Altecnic Ball Valves range and is listed for boiler applications.

• The valve no longer isolates the circuit fully when the handle is turned to the closed position.
• Water weeps from the spindle or body joints with the valve in either position.
• The check valve passes water in the reverse direction, allowing backflow through the pipework.
• Knocking or water hammer in the pipework that begins at the valve position.
• The lever becomes stiff, loose or fails to move through its full travel.

• Confirm the pipework connection size and that a female x female configuration matches the existing fittings.
• Check the flow direction marked on the valve body and confirm it suits the installation.
• Verify the available clearance around the valve for the lever to operate through its full travel.
• Check the existing valve's part number against 333500 before ordering.