VALVE WITH VALVE INSERT COMPRISING TWO CYLINDERS

The invention relates to a valve (10) for regulating a flow between a first and a second port (16, 18). A valve housing (12) comprises a valve chamber (14) connected to the first and second ports (16, 18). A valve insert (26) inserted within the valve chamber (14) comprises a first cylinder (28) connected to a second cylinder (32) and a piston (34) movably arranged within the second cylinder (32). The piston (35) acts against a valve seat gasket (30). The first and said second cylinders (28, 32) are arranged axially aligned and connected by a releasable connection (44). The valve seat gasket (30) is arranged in a valve seat gasket chamber (62) formed between the first and second cylinders (28, 32) and providing a ring opening (80) for engagement of the valve seat gasket (30) with the piston (34).