3 LF850-DNRS

Item Number: 0683081
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$7,654.28
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 3 inch
  • Weight: 285.0 lb
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Advanced Epoxy System
  • Max. Working Pressure: 175 psi
  • Temperature Range: 33°F – 140°F (0.5°C – 60°C)
  • Lead Free Construction (<0.25% lead by weight)
  • In-line serviceable design
  • Approved for non-health hazard applications

Description

This 3-inch Lead Free FEBCO MasterSeries LF850 Double Check Valve Backflow Preventer Assembly protects potable water from backpressure and backsiphonage caused by non-health hazard pollutants. Featuring a durable ductile iron body with ArmorTek® epoxy coating for corrosion resistance, it is designed for continuous pressure applications. Its in-line serviceable design allows for easy maintenance without special tools. This assembly operates within a 10 to 175 psi pressure range and a 33°F to 140°F temperature range. It is ASSE 1015, UL, FM, IAPMO, CSA, and AWWA C510 compliant.

Help Me Connect

This FEBCO MasterSeries LF850 Double Check Valve Assembly is designed for installation on potable water supply lines at each point of cross-connection to protect against backpressure and backsiphonage. It is suitable for non-health hazard (pollutant) applications where local codes mandate protection from non-potable quality water. The assembly is ideal for continuous pressure piping applications and for protecting against non-toxic contaminants at the service line entrance.

Connections

  • Features domestic Non-Rising Stem (NRS) resilient seated gate valves for inlet and outlet connections.
  • The valve body design is compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.
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Additional Details

This 3 inch Lead Free FEBCO MasterSeries LF850 Double Check Valve Backflow Preventer Assembly is designed to protect potable water systems from backflow due to backsiphonage and backpressure conditions for non-health hazard (pollutant) applications.

It is ideal for continuous pressure piping applications and cross-connections where non-toxic contaminants are present.

Key Features

  • Features a ductile iron valve body with a patented ArmorTek® 3-part advanced epoxy coating system to resist microbial-induced corrosion (MIC) and protect exposed metal substrates.
  • Designed for in-line servicing without requiring special tools, featuring independently accessible top entry covers.
  • Includes two (2) independently acting clapper style check modules with stainless steel components, replaceable seats, and reversible/replaceable silicone discs.
  • Equipped with domestic Non-Rising Stem (NRS) resilient seated gate valves and four (4) properly located resilient seated test cocks.
  • Lead Free* construction ensures the wetted surface contains less than 0.25% lead by weight, complying with low lead installation requirements.

Specifications

  • Product Type: Double Check Valve Assembly
  • Size: 3 inch
  • Brand: FEBCO
  • Model: LF850
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Advanced Epoxy System
  • Check Components: Stainless Steel
  • Check Seats: Stainless Steel, Field replaceable
  • Disc Material: Silicone
  • Disc Style: Reversible and Replaceable
  • Spring Material: Stainless Steel
  • Shutoff Valves: Domestic Non-Rising Stem (NRS) Resilient Seated Gate Valves
  • Min. Working Pressure: 10 psi
  • Max. Working Pressure: 175 psi
  • Temperature Range: 33°F – 140°F (0.5°C – 60°C) Continuous

Certificates & Approvals

  • ASSE 1015 Listed
  • UL Classified (U.S. & Canada)
  • FM Approved
  • IAPMO
  • CSA Listed
  • CSA B64.4
  • AWWA Standard C510 Compliant
  • Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • Approved by FCCCHR-USC

FAQs

What type of backflow protection does the FEBCO LF850 provide?

The FEBCO LF850 Double Check Valve Assembly provides protection against backpressure and backsiphonage conditions in potable water systems. It is intended for non-health hazard (pollutant) applications.

Is this backflow preventer assembly suitable for fire sprinkler systems?

When used on a Fire-Sprinkler application, the assembly shall be fitted with UL Classified/FM Approved inlet/outlet resilient seated shutoff valves.

What is ArmorTek® coating and what are its benefits?

ArmorTek® is a patented three-part advanced epoxy system that coats the iron components. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, enhancing the longevity of the assembly.

Are special tools required for servicing the FEBCO LF850?

No, the assembly is designed for in-line servicing without requiring any special tools. The check modules can be accessed through independently top entry covers.

What are the minimum and maximum operating pressures for this device?

The minimum working pressure is 10 psi, and the maximum working pressure is 175 psi for continuous operation.

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