A Valve arrangement which includes a Body, with one or more Valve seat Valve in series with members associated with those seats,Where Valves are independent and have sealed positions, stuck in their seats, and

摘要

A valve arrangement which includes a housing with an internal volume (20), an inlet to and an outlet from the volume, two valve seats (22, 24) which are serially located inside the volume between the inlet and the outlet, two valve members (36, 38) which are respectively sealingly engagable with the valve seats (22, 24), and guide formations (26, 28) which permit each valve member to move, along a respective path, away from its respective valve seat and to tilt to a limited extent relatively to such path.