Description
The Outside Screw & Yoke Valve Supervisory Switch from Valve Parts provides intelligent monitoring of open positions for Outside Screw and Yoke (OS&Y) gate valves.
This switch mounts externally on the valve yoke to detect position without interfering with normal operation. Adjustable travel range allows switch activation within two revolutions of the valve stem or when stem deviates one-fifth from the normal position.
Housed in a rugged, weatherproof die cast metal enclosure, the OSY switch offers a side 1⁄2″ conduit entrance and facilities for valve attachment. Grounding provisions are provided. Dual SPDT contacts rated 10A at 125/250VAC and 2.5A at 24VDC allow flexible control logic.
The tamper-resistant cover ensures security. UL listed and FM approved, Outside Screw & Yoke Valve Supervisory Switch delivers reliable monitoring for OS&Y valves in indoor or outdoor applications.
Contact Valve Parts today to learn more about this innovative solution for enhanced valve safety and efficiency!
| Specifications | |
|---|---|
| Overall Switch Dimensions | 146mm x 89mm x 82mm (5 ¾˝ x 3 ½˝ x 3 ¼˝) |
| Shipping Weight | 1.3 kg (2.8 lbs.) |
| Operating Temperature Range | 0°C to 49°C (32°F to 120°F) |
| Maximum Stem Extension | 67mm (2 5/8”) |
| Bracket Span | 57mm x 171mm x 25mm (2 ¼˝ x 6 ¾˝ x 1˝) |
| Conduit Entrances | One single side open for ½˝ conduit |
| Contact Ratings | Two sets of SPDT (Form C) 10.0 A @ 125/250V AC 2.5 A @ 6/12/24V DC |
| Enclosure Rating | UL indoor/outdoor |
| NEMA 3R when mounted with the actuator vertical | |
| Cover Tamper Switch | Standard with ULC model |
| Optional for UL model, part no. 546-7000 | |
| Service Use | Automatic Sprinkler: NFPA 13 One or Two Family Dwelling: NFPA 13D Residential Occupancies up to 4 stories: NFPA 13R National Fire Alarm code: NFPA 72 |
| Warranty | 2 years |
Outside Screw & Yoke Valve Supervisory Switch Features
• User-friendly mounting bracket fits newer valve yokes
• Single side conduit entry does not require right angle fittings
• Adjustable length actuator eliminates the need for cutting the shaft
• Accommodates up to 12 AWG wire
• Three position switch monitors vandal and valve close signals
• Two SPDT contacts are enclosed in a durable terminal block for added strength
• 100 percent synchronization activates both alarm panel and local bell simultaneously
Outside Screw & Yoke Valve Supervisory Switch Applications
• Monitor open/closed status of OS&Y valves in fire protection systems
• Detect valve leaks or failures to close in industrial applications
• Provide position feedback for PLC control of OS&Y valves
• Enable remote monitoring of valve status in pipelines, plants, etc.
• Send early warning of valve issues to prevent downtime and damage
• Integrate with BMS, SCADA, alarm panels for valve monitoring
• Use with rising or non-rising valve stem designs
• Suitable for steam, gas, air, water, oil, and other media services
• Rugged and weatherproof design for indoor and outdoor installations
• Dual contacts allow redundancy and flexible programming
Meets requirements of NFPA 72 and NFPA 13/13D/13R standards
Download Outside Screw & Yoke Valve Supervisory Switch Data Sheet