LFF116
Pressure Relief, Sustaining or Backpressure Control Valve
LFF116
Pressure Relief, Sustaining or Backpressure Control Valve
Features
- ArmorTek coating technology to resist corrosion of internals
- 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
- Integrates with the Sensor Control Monitor to deliver maintenance alerts to BAS via RS-485 Modbus or the Nexa platform by Wi-Fi connectivity
Nexa pairs integrated sensing hardware with free, upgradable software to empower facilities with unprecedented visibility and control over their water systems, helping teams protect assets, deliver consistent performance, and drive measurable ROI.
Learn more about Nexa
Series LFF116 and LFF1116 pressure relief, sustaining, or backpressure control valves permit flow when upstream pressure exceeds the adjustable pilot setpoint and throttle toward the closed position as upstream pressure falls below the setpoint. Depending on installation, the valve functions as a pressure relief valve when mounted off the main line, a pressure sustaining valve when installed between distribution zones, or a backpressure control valve when installed on pump discharge to maintain required upstream pressure.
SentryPlus Alert® technology adds intelligent pressure monitoring and notification, using integrated sensors to track pressure fluctuations at up to three points and assess valve performance in real time.
When paired with an ACV, the Sensor Control Monitor kit issues maintenance alerts (such as when differential pressure rises above a preset limit) and communicates either through BAS integration via RS‑485 Modbus or through the Nexa® platform over Wi‑Fi.
The valve’s internals are protected by ArmorTek®, a multilayer corrosion‑resistant coating engineered to extend service life in demanding environments.
To learn more visit: https://www.watts.com/armortek
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. Some certification agencies allow you to search by product name and brand.
Literature
Video - ArmorTek Advanced Coating System Overview
Armortek’s patented triple-layer coating protects valves from corrosion and microbiologically induced damage, extending their lifespan and enabling repair and recycling for sustainable water management.
Runtime : 00:01:13Watch Now
Video - ArmorTek in Las Vegas Five Years After Install
See how Armortek’s advanced coating system has successfully protected valves from corrosion and microbiological damage over five years in a real-world Las Vegas installation.
Runtime : 00:01:44Watch Now
Select a Model
Select options below to identify the UPC, Order Code, and Repair Kit for a specific LFF116
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| Model | Used On - Series or Model | Kit Contents |
|---|---|---|
|
ACV-SCM-Class 150
Activation Kit |
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Sensor Control Monitor, 2 Sensors, 2 Sensor Cables, Power Adapter, Mounting Feet, and Quick Start Guide</br> |
|
SCM-ACV-Class 150
Activation Kit |
</br></br> |
Sensor Control Monitor, 2 Sensor Cables, Power Adapter, Mounting Feet, and Quick Start Guide</br> |
Download CAD Files
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- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 1.25 Angle Thread
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 1.5 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 1.5 in Angle Thread
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 2 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 2 in Angle Flange Size 300
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 2 in Angle Thread
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 2.5 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 2.5 in Angle Flange Size 300
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 2.5 in Angle Thread
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 3 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 3 in Angle Flange Size 300
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 3 in Angle Thread
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 4 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 4 in Angle Flange Size 300
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 6 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 6 in Angle Flange Size 300
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 8 in Angle Flange Size 150
- Revit - LFF1116 Pressure Relief Sustaining or Backpressure Control Valve - 8 in Angle Flange Size 300
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 1.25 in Globe Threaded
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 1.5 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 1.5 in Globe Threaded
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 2 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 2 in Globe Flange Size 300
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 2.5 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 2.5 in Globe Threaded
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 3 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 3 in Globe Flange Size 300
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 3 in Globe Threaded
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 4 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 4 in Globe Flange Size 300
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 6 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 6 in Globe Flange Size 300
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 8 in Globe Flange Size 150
- Revit - LFF116 Pressure Relief Sustaining or Backpressure Control Valve - 8 in Globe Flange Size 300