Scale Calibration Weight, Class 7, 1lb Fire Sprinkler Bells The OSYEXP is an explosion-proof

The OSYEXP is an explosion-proof supervisory switch used to monitor the open position of an outside screw and yoke type (OS&Y) gate valve

Head guard for use with Tyco fire sprinkler models: ELO-231 Series

• SSV series come pre-wired

• Plug-in design with minimal intrusion into the back box

Flanges to ANSI B16

Scale Calibration Weight, Class 7, 1lb Fire Sprinkler Bells The OSYEXP is an explosion-proofScale Calibration Weight, Class 7, 1lb CLASS 7 WEIGHTS are for scale calibration and satisfy the amendment of CA Title 19, Division 1, Chapter 3 that states scales must be checked with an appropriate Class 7 Weight prior to each use. Test weights are made from cast iron and coated with a layer of chip resistant paint to keep them from corroding. Approved for use with fire extinguisher scale calibration WARNING: This product can expose you to