Compression Pump Valves with Butterfly Handle (supplied in pairs) extension The seal depth is measured

The seal depth is measured in combination with the urinal

Installation Testing & Maintenance of Services Supplying Water for Domestic use within Buildings and their Curtilages - Specification

They are intended for non-pressure applications and for the discharge of wastewater at low pressure

Compression Manifolds Technical Data Sheet

The valve is activated (opened) by negative pressure detected in the pipe work

Compression Pump Valves with Butterfly Handle (supplied in pairs) extension The seal depth is measuredDESCRIPTION: Pump Valves are fitted either side of a central heating circulating pump. They allow you to isolate and remove the pump for repair or replacement this means that you are not required to drain down your central heating system which can be time consuming and expensive. These valve comes with 3 4" or 1" compression connections on one side and a pump connection on the other side.