All of the HD912 series detectors meet the requirements of UL521 and EN 54-5 for use in fire alarm signaling systems, which provide fast and reliable response for heat 57°C (135°F) or Rate-of-Rise detection, They are intended for use in 2-wire/4-wire Class A2 supervised zone circuits. The HD912 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.
Conventional Photoelectric Smoke and Heat Alarm
All of the SD119 series detectors meet the requirements of UL 268 and EN 54-7/5 for use in fire alarm signaling systems. They are intended for use in 2-wire/4-wire Class A or B supervised
zone circuits. The SD119 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.
Non corrosive pull pin，Full hand grip for ease of operation，Waterproof stainless steel gauge，Anodized aluminum valve，Quick release hose and Cylinder with corrosion and impact resistant finish (red epoxy)
Chrome plated valve is precision machined from forged brass complete with stainless steel top and bottom handles
The interior coated polyester material provides added strength that helps prevent the covers from UV fading and cracking from harsh exposure to chemicals, salt spray and extreme temperatures
Grooved-End Ductile Iron Check Valve
Application:
• Used in one-way flow pipeline to prevent the water from back flow
• 350 PSI Working pressure
• Installed in both Horizontal or Vertical Line with Upward Flow
• Easier and Faster to Maintain and Install
• Low Pressure Drop
• All Stainless-Steel Wetted Parts to Provide Superior Corrosion
• FM Approved & UL Listed
Application:
• Designed to detect waterflow in a wet-pipe fire sprinkler system
• Provide essential protection for fire wet sprinkler system
• The adjustable retard delay range is 0 seconds to 90 seconds
• FM Approved & UL/ULC Listed
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