LFF116
Pressure Relief, Sustaining or Backpressure Control Valve
Series LFF116, LFF1116 Pressure Relief, Sustaining or Backpressure Control Valve is designed to permit flow when upstream pressure is above the adjustable setpoint of the control pilot, and throttle toward closed when upstream pressure falls below the adjustable setpoint. When the valve is installed off the main line on the branch of a tee, it serves as a Pressure Relief Control Valve. It is normally closed, and quickly opens when upstream pressure exceeds the pilot setting, relieving excess pressure. When valve installed in line connecting two distribution zones, the valve acts as a Pressure Sustaining Control Valve. When pressure in the upstream zone falls below the pilot setting, the valve modulates toward a closed position, sustaining pressure in the upstream zone. When the valve is installed in line on the discharge of a pump, it acts as Backpressure Control Valve. When pump discharge pressure falls below the pilot setting, the valve modulates toward a closed position, increasing backpressure against the pump.
This ACV is armed with ArmorTek®, a patented 3-part advanced epoxy coating system designed to limit both microbial induced (MIC) and exposed metal substrate corrosion.
To learn more visit: https://www.watts.ca/armortek
Features
- Body construction with patented 3-part ArmorTek epoxy coating for advanced corrosion resistance
- Permits flow when upstream pressure is above the adjustable setpoint of the control pilot
- When installed "off the main line" on the branch of a tee, the valve serves as a Pressure Relief Control Valve
- When installed "in line" connecting two distribution zones, the valve acts as a Pressure Sustaining Control Valve
- When installed "in line" on the discharge of a pump, it acts as a Backpressure Control Valve
Literature
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- Brochure - Backflow Prevention and Flow Control for Waterworks
- Flyer- ArmorTek ACV - Stop Replacing Corroded Valves
- Schematic - LFF116
- Specification Sheet - ACV Ball Valves
- Specification Sheet - ACV Ball Valves (Spanish)
- Specification Sheet - F100 / F1100 Full Port Ductile Iron Single Chamber Basic Valve
- Specification Sheet - F100 / F1100 Full Port Ductile Iron Single Chamber Basic Valve (Spanish)
- Specification Sheet - LF60 Flo-Clean Strainer
- Specification Sheet - LF60 Flo-Clean Strainer (Spanish)
- Specification Sheet - LFFC Flow Control
- Specification Sheet - LFFC Flow Control (Spanish)
- Specification Sheet - LFPV20C Pressure Relief, Sustaining or Backpressure Pilot
- White Paper - ArmorTek Advanced Coating System
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:
ASSE | CSA | FM Approvals | NSF |
UL | ULC | USC | WQA |