Potter OSYSU-2-CRH Corrosion Resistant Outside Screw and Yoke Valve Supervisory Switch
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). They will mount on some valves as small as ½” (12,5mm). The cover is held in place by two tamper resistant screws that require a special tool to remove. The tool is furnished with each device. For additional information on Potter's Fire Sprinkler Solutions visit our Fire Sprinkler Monitoring Training Section.
Key Features
- 40º F to 140ºF (-40ºC to 60ºC)
- NEMA 4X* (IP 65) and 6P (IP 67)
- -40º to 140º (-40ºC to 60ºC) operating temperature range
- Visual switch indicators
- Two conduit entrances
- Adjustable length trip rod
- Accomodates up to 12AWG wire
- Three position switch detects tampering and valve closure
- Knurled mounting bracket prevents slipping
- Fine adjustment feature for fast, easy installation
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