タイトルまたは説明

The OSY*1 supervisory switch is used to monitor the open
position of an OS&Y (outside screw and yoke) type gate valve.
OSY*1 supervisory switch shall be installed on each valve as
designated on the drawing and/or as specified herein, Switches
shall be mounted so as not to interfere with the normal
operation of the valve and shall be adjusted to operate with two
revolutions of the valve control or when the stem has moved no
more than one-fifth of the distance from its normal position.

Enclosure Rating NEMA *- suitable for indoor/outdoor
Conduit Entrances: One opening for 1/2 conduit
Contact Rating