Watts 3/4" LF719-QT

Item Number: 0065302
1 1
$776.34
Limited Stock (2)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Watts
  • Size: 3/4 inch
  • Weight: 5.26 lb
  • Body Material: Lead Free cast copper silicon alloy
  • Max Operating Pressure: 175 PSI
  • Operating Temperature: 33°F – 180°F
  • Chloramine resistant elastomers
  • Top entry check valve design
  • Reversible seat disc rubber
  • Compact design

Description

The Watts 3/4 inch LF719-QT Lead Free Double Check Valve Assembly provides crucial backflow protection for non-health hazard cross-connections. Constructed from lead-free cast copper silicon alloy with chloramine-resistant elastomers, it ensures safe drinking water by preventing reverse flow of non-potable water. Key features include a compact design, top-entry check valve access for easy maintenance, and quarter-turn ball valves. It is rated for 175 PSI and temperatures from 33°F to 180°F, meeting ASSE 1015 and AWWA C510 standards. Item number 0065302.

Help Me Connect

Connections

  • This assembly features NPT (National Pipe Taper) end connections for secure plumbing system integration.
  • The integral shutoff valves are quarter-turn ball valves with tee handles, simplifying operation.

Installation Orientation

  • This Watts LF719-QT assembly is approved for both horizontal and vertical installations. The arrow on the valve body indicates the direction of flow and must point in the direction of water flow during installation.
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Additional Details

The Watts 3/4 inch LF719-QT Lead Free Double Check Valve Assembly is designed to protect drinking water supplies from dangerous cross-connections, preventing the reverse flow of contaminated water into the potable water supply due to backsiphonage or backpressure.

This double check valve backflow preventer is ideal for protection in non-health hazard applications and from other contaminants found at the service line entrance. Its compact design allows for easy maintenance with separate access top entry points.

Features

  • Manufactured from Lead Free* cast copper silicon alloy body construction.
  • Separate access, top entry check valve design for easy maintenance.
  • Reversible seat disc rubber extends the check valve life.
  • Chloramine resistant elastomers ensure durability.
  • Features replaceable seats and seat discs.
  • Compact design with integral shutoff valves.
  • Top mounted screwdriver slotted ball valve test cocks.
  • Designed for low pressure drop.
  • Quarter-turn ball valves with tee handles on 1/2 inch to 1 inch sizes.
  • No special tools required for servicing.
  • Plastic on plastic check guiding reduces potential binding due to mineral deposits.

This is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable. Please be sure you order carefully. If you have ANY questions, please contact us before ordering.

Specifications

  • Size: 3/4 inch
  • Body Material: Lead Free* cast copper silicon alloy
  • Elastomers: Chloramine resistant silicone and EPDM
  • Check Seats: PPO
  • Disc Holders: PPO
  • Operating Pressure: 175 PSI (12.1 bar)
  • Operating Temperature Range: 33°F – 180°F (0.5°C – 82°C)
  • End Connections: NPT
  • Valve Type: Quarter-turn ball valves with tee handles
  • Lead Content: Wetted surface contacted by consumable water contains less than 0.25% of lead by weight

Certificates & Approvals

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

FAQs

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

This assembly is designed to protect drinking water supplies by preventing the reverse flow of non-potable or contaminated water into the potable water system, specifically in non-health hazard applications.

What materials is the Watts LF719-QT made from?

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

What are the maximum operating pressure and temperature for this device?

The Watts LF719-QT has a maximum operating pressure of 175 PSI (12.1 bar) and an operating temperature range from 33°F to 180°F (0.5°C to 82°C).

Does this backflow preventer require special tools for servicing?

No, the Watts LF719-QT is designed for easy servicing with no special tools required. It features separate access, top entry check valve designs and top-mounted screwdriver slotted ball valve test cocks.

Is the Watts LF719-QT compliant with lead-free regulations?

Yes, it features Lead Free* construction. The wetted surface of this product that contacts consumable water contains less than 0.25% of lead by weight, complying with state codes and standards for reduced lead content.