6 LF870-W-DOSY

Item Number: 88005417
1 1
$14,486.26
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • 6 inch Double Check Valve Assembly
  • Weight: 690.0 lb
  • Lead Free* construction (<0.25% lead by weight)
  • Ductile Iron Body with ArmorTek coating
  • Max Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F (continuous)
  • Designed for N-pattern (vertical up/down) installations
  • Drop-in replacement for competitor valves
  • UL Classified, FM Approved, ASSE 1015 Listed

Description

The FEBCO MasterSeries 6 inch LF870W Double Check Valve Assembly prevents backflow of polluted water into potable water systems due to backsiphonage or backpressure. It features a durable ductile iron body with ArmorTek coating for corrosion resistance and Lead Free* construction. This N-pattern assembly is designed for drop-in replacement of competitor valves, simplifying installation. It operates within a temperature range of 33°F to 140°F and has a maximum working pressure of 175 psi. UL Classified, FM Approved, and ASSE 1015 listed, this assembly ensures compliance with industry standards. Item number 88005417.

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Connection and Installation

  • This FEBCO MasterSeries LF870W Double Check Valve Assembly is specifically designed for drop-in replacement of a competitor's valves in either the N-pattern (LF870W) or Z-pattern (LF870WZ) orientation.
  • The LF870W model is configured for N-pattern installations, meaning inlet flow vertical up and outlet flow vertical down.
  • It is installed on the potable water supply at points of cross-connection to protect against backpressure and backsiphonage conditions in non-health hazard (pollutant) applications.
  • End connections are compliant to ASME B16.1 Class 125 & AWWA Class D Flange.
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Additional Details

This 6 inch lead free MasterSeries® configurable double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards.

Features

  • Longer gate-to-gate length for drop-in replacement of competitor valves
  • In-line serviceable assembly for easy maintenance
  • Supports vertical up/vertical down N-pattern installations (LF870W model)
  • No special tools required for servicing
  • Features a captured modular spring assembly
  • Equipped with reversible and replaceable discs
  • Includes field replaceable seats
  • Ductile iron valve body design for durability
  • Stainless steel check components
  • ArmorTek coating technology to resist microbial-induced corrosion (MIC) and exposed metal substrate corrosion
  • Winterization feature with disc retainers and valve body drain ports
  • Clapper check assembly for reliable operation
  • Commonality between 1st and 2nd check components
  • Captured O-ring design
  • Lead Free* construction to comply with low lead installation requirements (wetted surface contains less than 0.25% of lead by weight)

Specifications

  • Size: 6 inch
  • Product Type: Double Check Valve Assembly
  • Series: MasterSeries LF870W
  • Pattern: N-Pattern (Standard Orientation)
  • Lay Length: Drop-in replacement for longer valves

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating, applied to internal and external surfaces
  • Shutoff Valves: Domestic OSY resilient wedge gate valve AWWA C515 (UL/FM Approved)
  • Check Seats: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel
  • Clamp: AWWA C606

Pressure & Temperature

  • Max. Working Pressure: 175 psi (12.1 bar)
  • Min. 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 purpose of this double check valve assembly?

This assembly is designed to prevent the backflow of polluted water from non-health hazard (pollutant) sources into the potable drinking water supply due to backsiphonage or backpressure conditions.

What is 'ArmorTek coating technology'?

ArmorTek is a patented three-part advanced epoxy system applied to the iron components. It is engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal substrates, extending the product's lifespan.

Does 'Lead Free' mean there is no lead in this product?

For this product, 'Lead Free*' means that the wetted surfaces, which come into contact with consumable water, contain less than 0.25% of lead by weight, in compliance with low lead installation requirements.

Can this assembly replace other brands' backflow preventers?

Yes, it is specifically designed with a longer gate-to-gate length for drop-in replacement of competitor N-pattern valves, making it a convenient solution for upgrading or replacing existing units.

What are the recommended operating pressure and temperature conditions?

This valve is designed for continuous operation within a temperature range of 33°F to 140°F (0.5°C to 60°C). It has a maximum working pressure of 175 psi (12.1 bar).

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