hdfire

OS & Y Supervisory Switches

DESCRIPTION

  • The OSYSU is used to monitor the open position of an OS&Y (outside screw and yoke) type gate valve
  • This device is available in two models; the OSYSU-1, containing one set of SPDT (Form C) contacts and the OSYSU-2, containing two sets of SPDT (Form C) contacts
  • These switches mount conveniently to most OS&Y valves ranging in size from 2″ to 12″ (50mm to 300mm)
  • Make sure the groove in the valve stem is at least as wide as the OSYSU roller or trip rod and is at least 1/2″ deep. If not, use a 3/8″ round file on the groove
  • UL Listed & FM Approved
Product Catalogue