Patent ID: 6481460
Filing Date: 2002-11-19
Classification: F16K,F16L,Y10T

Abstract:
A two-way valve comprising:a valve body having a first port at one end, a second port at the other end, and a fluid passage for communication between said first port and said second port; a valve mechanism having a displacement mechanism including a valve plug for opening and closing said fluid passage, said valve mechanism being disposed in said valve body; a detection section detachably attached to the outside of said valve body; and a detection object connected to said valve plug so that said detection object can be displaced in unison with said valve plug, wherein said detection object comprises a metallic detection member disposed in a bonnet of said valve body, said detection member having an end facing an opening of said bonnet, wherein said detection section includes a proximity switch that detects said metallic detection member for detecting whether said two-way valve is in the ON state where said fluid passage is opened or said two-way valve is in the OFF state where said fluid passage is closed, and said proximity switch covers said opening of said bonnet.