8 LF856-OSY-GPM

Item Number: 0124453
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$33,125.10
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Assembly Size: 8 inch
  • Weight: 815.0 lb
  • Lead Free: Yes (less than 0.25% lead by weight)
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek advanced epoxy system
  • Check Components: Stainless Steel
  • Shutoff Valves: OS&Y Gate Valves (UL/FM Approved)
  • Bypass Meter: GPM (Gallons Per Minute) Meter (ANSI/AWWA C700 Compliant)
  • Maximum Operating Pressure: 175 PSI

Description

This 8 inch FEBCO MasterSeries LF856 Lead Free Double Check Detector Backflow Preventer Assembly safeguards drinking water supplies from non-health hazard pollutants due to backpressure or backsiphonage. Featuring a durable ductile iron body with ArmorTek advanced epoxy coating for corrosion resistance, it includes OS&Y gate valves and a GPM metered bypass to detect water usage. Ideal for fire sprinkler and standpipe systems, and industrial processing, this assembly has stainless steel check components and operates up to 175 PSI within a 33°F to 140°F temperature range. Item number 0124453.

Help Me Connect

This 8 inch FEBCO MasterSeries LF856 Double Check Detector Backflow Preventer Assembly is designed for installation on the potable water supply at any point of cross-connection. It provides protection against possible backpressure and backsiphonage conditions for non-health hazard (pollutant) applications. The end connections are compliant to ASME B16.1 Class 125 and AWWA Class D Flange standards.

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Additional Details

This 8 inch lead free FEBCO MasterSeries LF856 Double Check Detector Backflow Preventer Assembly is designed to protect drinking water supplies from dangerous cross-connections.

It is primarily used for non-health hazard, non-potable service applications such as irrigation, fire line, or industrial processing, and is ideal for protection of drinking water and fire sprinkler systems where local codes mandate protection from non-potable water being pumped or siphoned back into the potable water system. It is also suitable for fire sprinkler and standpipe systems requiring detection of unauthorized water use.

Features

  • Ductile iron valve body design.
  • ArmorTek® coating technology to resist corrosion of internals.
  • In-line serviceable assembly with no special tools required for servicing.
  • Captured modular spring assembly for easy maintenance.
  • Reversible and replaceable discs for extended product life.
  • Field replaceable seats.
  • 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 bypass design remains within the main valve assembly profile.
  • In-line serviceable 3/4 inch check assembly.
  • No special tools required for servicing for the bypass.
  • Field replaceable seat and disc for the bypass.
  • Detects potential underground water leaks and unauthorized water usage.

The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Specifications

  • Assembly Size: 8 inch
  • Product Type: Double Check Detector Backflow Preventer Assembly (Type II)
  • Main Valve Body Material: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating, applied to internal and external surfaces
  • Shutoff Valves: OS&Y resilient wedge gate valves AWWA C515 (UL Classified/FM Approved)
  • Check Seats Material: Stainless steel
  • Disc Holder Material: Stainless steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless steel
  • Auxiliary Bypass Meter: 5/8" x 3/4" Water Meter, Totalizing Gallons/Min (ANSI/AWWA C700 Compliant)
  • 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
  • Lead Content: Less than 0.25% by weight (wetted surface)
  • Assembly Flow Orientation: Horizontal & Vertical Up

Connections

  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • ASSE 1048 Listed
  • UL Classified (U.S. & Canada)
  • FM Approved
  • IAPMO
  • AWWA Standard C510 Compliant

FAQs

What is the primary purpose of this backflow preventer?

This backflow preventer is designed to protect drinking water supplies from non-health hazard pollutants due to backpressure and backsiphonage, commonly found in applications like irrigation, fire lines, or industrial processing.

What type of coating is used on the iron components, and what are its benefits?

The iron components are coated with ArmorTek®, a patented three-part advanced epoxy system. This coating is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates from electrochemical corrosion.

Is this backflow preventer lead-free?

Yes, the wetted surface of this product that contacts consumable water contains less than 0.25% of lead by weight, making it lead-free in accordance with current regulations.

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

This assembly has a maximum working pressure of 175 psi (12.1 bar) and operates continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).

What approvals does the FEBCO MasterSeries LF856 assembly hold?

This assembly is approved by FCCCHR-USC, ASSE 1048 Listed, UL Classified (U.S. & Canada), FM Approved, IAPMO, and is AWWA Standard C510 Compliant.

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