8 LF876V-DOSY-GPM

Item Number: 0124488
1 1
$38,267.54
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 8 inch
  • Weight: 815.0 lb
  • Max Working Pressure: 175 psi
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® advanced epoxy system
  • Lead Free Construction: Wetted surfaces < 0.25% lead
  • Detector Bypass: GPM metered
  • Shutoff Valves: Domestic OSY resilient seated gate valves
  • Approvals: ASSE 1048, UL Classified, FM Approved, IAPMO/CUPC, AWWA C510, CSA B64.5

Description

The 8 inch FEBCO MasterSeries LF876V Double Check Detector Backflow Preventer Assembly protects potable water and fire sprinkler systems from non-health hazard pollution caused by backpressure or backsiphonage. Its ductile iron body is coated with ArmorTek advanced epoxy to resist microbial-induced and exposed metal corrosion. This lead-free assembly features an N-Pattern configurable design, a GPM metered bypass for leak detection, and UL/FM approved OS&Y shutoff valves. It is suitable for both horizontal and vertical-up installations, meeting AWWA C510 and ASSE 1048 standards with a maximum working pressure of 175 psi. Item number 0124488.
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Additional Details

This 8 inch MasterSeries® LF876V Double Check Detector Backflow Preventer Assembly is specifically designed to protect potable water supplies and fire sprinkler systems from backpressure and backsiphonage conditions caused by non-health hazard pollutants. It features a configurable N-Pattern design for reduced installation footprint and costs.

Product Design and Construction

  • Designed to prevent reverse flow of polluted water into the potable supply.
  • Capable of both N-pattern (standard) and Z-pattern (vertical-up) configurations to optimize installation space.
  • Lead-free construction, with wetted surfaces containing less than 0.25% lead by weight.
  • Includes two in-line, independent check valves with replaceable seats.
  • Equipped with ball valve test cocks for easy testing.
  • Features a gallons per minute (GPM) metered bypass to detect system leakage or unauthorized water usage.
  • Supplied with Outside Stem and Yoke (OS&Y) resilient seated domestic gate valves.

Protective Coating Technology

  • Main valve body and iron components are coated with ArmorTek®, a patented three-part advanced epoxy system.
  • This coating is engineered to limit both microbial-induced corrosion (MIC) and protect exposed metal substrates, enhancing product longevity.

Main Valve Features

  • In-line serviceable assembly for easier maintenance.
  • Horizontal N-pattern installations and Vertical-Up Z-pattern installations supported.
  • No special tools required for servicing check modules.
  • Captured modular spring assembly, reversible and replaceable discs, and field replaceable seats.
  • Ductile iron valve body design with Stainless steel check components.
  • Winterization feature with disc retainers and valve body drain ports.
  • Clapper check assembly with commonality between 1st and 2nd check components.
  • Captured O-ring design.

Auxiliary Bypass Features

  • Compact design that remains within the main valve assembly profile.
  • In-line serviceable 3/4" check assembly.
  • No special tools required for servicing.
  • Field replaceable seat and disc.
  • Designed to detect potential underground water leaks and unauthorized water usage.

Specifications

  • Product Type: Double Check Detector Backflow Preventer Assembly
  • Model Series: FEBCO MasterSeries LF876V
  • Size: 8 inch
  • Flow Pattern: N-Pattern (Standard), Z-Pattern (Vertical-Up)
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® advanced epoxy powder coating (internal and external surfaces)
  • Shutoff Valves: OSY resilient wedge gate valve AWWA C515 (UL/FM)
  • Check Seats Material: Stainless steel
  • Disc Holder Material: Stainless steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless steel
  • Clamp Material: AWWA C606

Performance

  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Minimum Working Pressure: 10 psi (0.7 bar)
  • Hydrostatic Test Pressure: 350 psi (24.1 bar)
  • Hydrostatic Safety Pressure: 700 psi (48.3 bar)
  • Temperature Range: 33°F ~ 140°F (0.5°C ~ 60°C) continuous

Certificates & Approvals

  • Approved by Foundation for Cross-Connection Control and Hydraulic Research (FCCCHR-USC)
  • ASSE 1048 Listed
  • UL Classified (U.S. & Canada)
  • FM Approved
  • IAPMO/CUPC
  • AWWA Standard C510 Compliant
  • CSA B64.5
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange

FAQs

What is the primary function of the FEBCO MasterSeries LF876V 8 inch backflow preventer?

This backflow preventer is designed to protect potable drinking water and fire sprinkler systems from contamination caused by non-health hazard pollutants due to backsiphonage or backpressure conditions. It prevents reverse flow into the main water supply.

What does the 'LF' in LF876V signify?

The 'LF' indicates that the product is Lead Free. The wetted surfaces of this assembly contain less than 0.25% of lead by weight, complying with lead-free regulations for potable water systems.

How does the ArmorTek® coating benefit this backflow preventer?

ArmorTek® is a patented three-part advanced epoxy system that coats the iron components of the backflow preventer. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, significantly extending the product's lifespan and maintaining its performance.

Can this backflow preventer be installed in different orientations?

Yes, this MasterSeries LF876V assembly supports both horizontal (N-pattern) and vertical-up (Z-pattern) installations. This configurable design provides flexibility to minimize installation footprint and reduce costs.

What is the purpose of the GPM metered bypass on this assembly?

The bypass line on this backflow preventer includes a gallons per minute (GPM) water meter. This feature is designed to detect potential underground water leaks or unauthorized water usage within the system, helping to monitor water consumption and system integrity.

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