Watts 1" LF719-QT

Item Number: 0065303
1 1
$878.23
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Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Watts
  • Valve Type: Double Check Valve Assembly
  • Weight: 8.2 lb
  • Body Material: Lead Free* Cast Copper Silicon Alloy
  • Size: 1 inch
  • Maximum Operating Pressure: 175 PSI
  • Temperature Range: 33°F – 180°F
  • Features Quarter-Turn Ball Valves
  • Top Entry Check Valve Design for Easy Maintenance
  • ASSE Std 1015 and AWWA Std C510 Compliant

Description

The Watts 1" LF719-QT Double Check Valve Assembly is a lead free device designed to protect potable water supplies from backflow in non-health hazard cross-connections. Constructed from cast copper silicon alloy with chloramine resistant elastomers, it features integral quarter-turn ball valves and top-mounted screwdriver slotted test cocks. This compact unit offers low pressure drop and easy maintenance, making it ideal for various installations. It is ASSE Std. 1015 and AWWA Std. C510 compliant, with a maximum operating pressure of 175 PSI and temperature range of 33-180°F. Item number 0065303.

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Connection and Installation Guidance

This Watts LF719-QT Double Check Valve Assembly is designed for non-health hazard cross-connections and is suitable for both horizontal and vertical installations. Ensure the arrow on the valve body points in the direction of water flow. It features NPT end connections for standard threaded pipe connections. Integral quarter-turn ball valves provide shutoff capability, and top entry access points with screwdriver slotted test cocks facilitate easy maintenance and testing.

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Additional Details

The Watts 1" LF719-QT Double Check Valve Assembly is designed to prevent the reverse flow of non-potable water into a potable water supply due to backsiphonage or backpressure, meeting national plumbing codes and water authority requirements. This lead free, bronze body assembly features two covers and a wye pattern design, offering reliable protection with full port, quarter-turn ball valves on the inlet and outlet, and is fully testable.

Key Features

  • Manufactured from Lead Free* cast copper silicon alloy for potable water applications.
  • Separate access, top entry check valve design allows for easy maintenance without special tools.
  • Features reversible seat disc rubber to extend check valve life and chloramine resistant elastomers for durability.
  • Replaceable seats and seat discs ensure long-term serviceability.
  • Compact design with top mounted screwdriver slotted ball valve test cocks for testing.
  • Provides low pressure drop for efficient flow.
  • Plastic on plastic check guiding reduces potential binding from mineral deposits.

Construction & Materials

  • Body Material: Lead Free* cast copper silicon alloy (Bronze)
  • Elastomers: Chloramine resistant silicone and EPDM
  • Check Seats: PPO
  • Disc Holders: PPO
  • Equipped with quarter-turn ball valves with tee handles on the 1" size.
  • NPT end connections for easy installation.

Always inquire with local governing authorities for specific installation requirements before installing this product. Thoroughly read all installation instructions and product safety information before beginning installation.

Specifications

  • Body Material: Lead Free* Cast Copper Silicon Alloy
  • Valve Type: Double Check Valve Assembly
  • Size: 1 inch
  • Shutoff Valves: Integral Quarter-Turn Ball Valves
  • Test Cocks: Top Mounted Screwdriver Slotted Ball Valve
  • Connection Type: NPT
  • Operating Pressure: 175 PSI (12.1 bar)
  • Operating Temperature Range: 33°F – 180°F (0.5°C – 82°C)
  • Elastomers: Chloramine Resistant Silicone and EPDM
  • Check Seats: PPO
  • Disc Holders: PPO
  • Weight: 7.4 lbs (3.4 kg)

Certificates & Approvals

  • ASSE Std 1015
  • AWWA Std C510 Compliant
  • NSF/ANSI/CAN 61-G Certified
  • USC-FCCCHR
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California

FAQs

What is the primary function of the Watts LF719-QT Double Check Valve Assembly?

It is designed to prevent the reverse flow of non-potable water into a potable drinking water supply system, protecting against contamination from backsiphonage and backpressure in non-health hazard applications.

What is the maximum operating pressure and temperature for this assembly?

This 1-inch LF719-QT assembly can operate up to 175 PSI (12.1 bar) and within a temperature range of 33°F to 180°F (0.5°C to 82°C).

What materials are used in the construction of this backflow preventer?

The body is manufactured from Lead Free* cast copper silicon alloy. Elastomers are chloramine resistant silicone and EPDM, while check seats and disc holders are made from PPO.

Are special tools required for servicing the Watts LF719-QT?

No, the design of this assembly, including separate access and top entry check valve design, allows for servicing without requiring special tools.

What certifications and approvals does this backflow preventer hold?

It meets ASSE Std. 1015 and AWWA Std. C510, is NSF/ANSI/CAN 61-G Certified, and is approved by USC-FCCCHR and the Foundation for Cross-Connection Control and Hydraulic Research.