6 LF870-W-NRS

Item Number: 88005421
1 1
$13,581.75
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 6 inch
  • Weight: 670.0 lb
  • Lead Free Construction (wetted surface <0.25% lead)
  • ArmorTek® Advanced Epoxy Coating for corrosion resistance
  • Ductile Iron Body Construction
  • N-Pattern Orientation for Horizontal Installation
  • Longer Lay Length for Drop-in Replacement
  • Non-Rising Stem (NRS) Shutoff Valves
  • Maximum Working Pressure: 175 PSI

Description

The FEBCO 6 inch LF870W MasterSeries® Double Check Valve Assembly provides reliable protection against backpressure and backsiphonage of non-health hazard pollutants into potable water systems. This lead-free N-pattern valve features a durable ductile iron body with ArmorTek® advanced epoxy coating to resist corrosion. Designed for drop-in replacement, it includes non-rising stem (NRS) shutoff valves and two independent check modules. It is suitable for protecting non-health hazard cross-connections and is approved by ASSE, UL, FM, and AWWA standards. Item number 88005421.

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Installation Orientation

  • This assembly is specifically designed for N-pattern (horizontal) installations.
  • It features a longer gate-to-gate length for convenient drop-in replacement of competitor N-pattern valves.

System Integration

The LF870W/WZ assembly should be installed on the potable water supply at each point of cross-connection. It provides protection against possible back-pressure and backsiphonage conditions for non-health hazard (pollutant) applications.

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Additional Details

This 6 inch lead free MasterSeries® double check valve backflow preventer assembly is designed with a longer lay length for drop-in replacement of competitor N-pattern valves.

It is specifically engineered to prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection of non-health hazard cross-connections or containment at the service line entrance.

Construction & Design

  • Ductile iron fused epoxy coated body construction with ArmorTek®, a patented 3-part advanced epoxy coating system
  • ArmorTek® coating designed to limit both microbial induced (MIC) and exposed metal substrate corrosion
  • Features two independent check valves with clapper check assembly
  • Equipped with replaceable stainless steel check seats and reversible, replaceable discs
  • Includes non-rising stem (NRS) resilient wedge gate valves
  • Fitted with ball valve test cocks for easy testing
  • Lead Free* construction to comply with low lead installation requirements. *The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.
  • In-line serviceable assembly with captured modular spring design
  • No special tools required for servicing
  • Commonality between 1st and 2nd check components with captured O-ring design
  • Winterization feature with disc retainers and valve body drain ports

Specifications

  • Product Size: 6 inch
  • Valve Orientation: N-Pattern (Horizontal)
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Body Coating: ArmorTek® powder coating (applied to internal and external surfaces)
  • Shutoff Valves: NRS resilient wedge gate valve AWWA C509 (Standard)
  • Check Seats Material: Stainless steel
  • Disc Holder Material: Stainless steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless steel
  • Clamp Material: AWWA C606

Pressure & Temperature

  • 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 the Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • ASSE 1015 Listed
  • UL Classified (U.S. & Canada)**
  • FM Approved**
  • IAPMO
  • AWWA Standard C510 Compliant
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • NSF Certified to NSF/ANSI 61-G

FAQs

What is the primary application of the FEBCO 6 inch LF870W Double Check Valve Assembly?

This assembly is designed to protect potable drinking water systems from non-health hazard (pollutant) backflow conditions caused by backsiphonage or backpressure. It's ideal for non-health hazard cross-connections or service line containment.

Does this backflow preventer comply with lead-free requirements?

Yes, this LF870W assembly features Lead Free* construction. The wetted surface of the product that contacts consumable water contains less than 0.25% of lead by weight, meeting current low lead installation requirements.

What is ArmorTek® coating and why is it important?

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

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

The maximum working pressure for the 6 inch LF870W is 175 psi (12.1 bar). It can operate continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).

Is this backflow preventer designed for drop-in replacement in existing systems?

Yes, the FEBCO 6 inch LF870W MasterSeries® Double Check Valve Assembly has a longer gate-to-gate length specifically designed to provide drop-in replacement of a competitor's valves in N-pattern (horizontal) orientations, making it convenient for system upgrades.

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