PRESSURE REGULATING VALVE

摘要

A pressure regulating valve includes a piston in a pressure regulating chamber, a valve element axially movable together with the piston, a valve chamber in which an end portion of the valve element is placed, a resinous valve seat which the valve element is brought into contact with or separated from, a coil spring urging the piston in a direction to move the valve element away from the valve seat, and a body member accommodating the valve element and the valve seat. The valve element has an axially extending hollow cylindrical shape. When moved away from the valve seat, the valve element allows communication between the valve chamber and the pressure regulating chamber. The valve seat is arranged to be axially movable. An adjusting screw is provided to move the valve seat for adjusting a contact position with the valve element from outside.

主权项

1. A pressure regulating valve including:
a pressure regulating chamber; a piston placed in the pressure regulating chamber; a valve element to be movable in an axial direction together with the piston; a valve chamber in which an end portion of the valve element is placed; a valve seat member made of resin, which the valve element is brought into contact with and separated from; an urging member urging the piston in a direction to separate the valve element from the valve seat member; and a body member accommodating the valve element and the valve seat member, wherein the valve element has a hollow cylindrical shape extending in the axial direction and is configured to allow communication between the valve chamber and the pressure regulating chamber when the valve element is separated from the valve seat member, the valve seat member is arranged to be movable in the axial direction, and an adjusting member configured to move the valve seat member to adjust a contact position with the valve element from outside.