3 LF876V-DOSY-GPM

Item Number: 0124476
1 1
$12,009.37
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Nominal Size: 3 inch
  • Weight: 206.0 lb
  • Body Material: Ductile Iron Grade 65-45-12
  • Maximum Working Pressure: 175 psi
  • ArmorTek® epoxy coating for corrosion resistance
  • Lead Free construction (<0.25% lead by weight)
  • UL Classified and FM Approved
  • OSY resilient wedge gate valves
  • ¾"x¾" GPM metered bypass

Description

The FEBCO 3 inch MasterSeries® LF876V Double Check Detector Backflow Preventer Assembly is designed to prevent polluted water from flowing back into potable water supplies or fire protection systems due to backsiphonage or backpressure. This durable unit features a ductile iron body with a patented ArmorTek® epoxy coating for superior corrosion resistance, including protection against microbial-induced corrosion (MIC). It includes UL/FM approved OSY shutoff valves and a GPM metered bypass to detect leaks or unauthorized water usage. With a lead-free construction and a maximum working pressure of 175 psi, it is suitable for non-health hazard applications.

Help Me Connect

This FEBCO MasterSeries® backflow preventer offers versatile installation options to suit various site requirements.

Installation Configurations

  • Supports both Horizontal N-pattern and Vertical U-Z-pattern installations. The configurable design allows for reduced installation footprint and costs.

End Connections

  • End connections are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards, ensuring broad compatibility with corresponding flange types.
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Additional Details

This 3 inch lead free MasterSeries® Double Check Detector Backflow Preventer Assembly is engineered to prevent the reverse flow of polluted water into the potable water supply due to backsiphonage and backpressure.

It is primarily used in fire protection systems to indicate system leakage or unauthorized water use, as well as on potable drinking water systems where local codes require protection from non-potable pollutants.

Main Valve Features

  • In-line serviceable assembly for easy maintenance.
  • Supports Horizontal N-pattern and Vertical U-Z-pattern installations.
  • No special tools required for servicing.
  • Features a captured modular spring assembly.
  • Includes reversible and replaceable discs.
  • Equipped with field replaceable seats.
  • Constructed with a ductile iron valve body.
  • Utilizes stainless steel check components.
  • Protected by ArmorTek coating technology to resist corrosion internally.
  • Features wye pattern bypass with disc retainers and valve body drain ports.
  • Commonality between 1st and 2nd check components.
  • Designed with a captured O-ring.

Auxiliary Bypass Features

  • Compact bypass design that remains within the main valve assembly profile.
  • Includes an in-line serviceable ¾" check assembly.
  • No special tools required for servicing.
  • Features a field replaceable seat and disc.
  • Designed to detect potential underground water leaks.
  • Capable of detecting unauthorized water usage.

The backflow preventer features ArmorTek®, a patented 3-part advanced epoxy coating system, which provides integrated protection against electrochemical corrosion and microbial-induced corrosion (MIC) for both internal and external surfaces. The wetted surface of this product contains less than 0.25% of lead by weight.

Specifications

  • Nominal Size: 3 inch
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek powder coating (internal and external surfaces)
  • Shutoff Valves: OSY resilient wedge gate valve (AWWA C515, UL/FM)
  • Check Seats: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel
  • Clamp: AWWA C606
  • Bypass Meter: ¾"x¾" Water Meter (ANSI/AWWA C700 Compliant)
  • Lead Content: Less than 0.25% by weight

Pressure & Temperature Ratings

  • 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

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

FAQs

What is the primary application of this backflow preventer?

This backflow preventer is primarily used to prevent the reverse flow of polluted water into potable water systems and fire protection systems due to backsiphonage or backpressure. It is designed for non-health hazard (pollutant) applications.

What type of coating is used on the backflow preventer body?

The backflow preventer features ArmorTek®, a patented 3-part advanced epoxy coating system. This coating provides integrated protection against electrochemical corrosion and microbial-induced corrosion (MIC) for both internal and external surfaces.

Is this backflow preventer suitable for detecting system leaks?

Yes, the assembly includes a detector bypass with a ¾"x¾" GPM water meter that is designed to detect potential underground water leaks or unauthorized water usage within the protected system.

What are the available installation orientations for this model?

This configurable design backflow preventer supports both Horizontal N-pattern and Vertical U-Z-pattern installations. This flexibility can help reduce installation footprint and costs.

What is the maximum working pressure for this device?

The maximum working pressure for this 3-inch Double Check Detector Backflow Preventer Assembly is 175 psi (12.1 bar).

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