8 LF870W-NRS

Item Number: 88005422
1 1
$26,833.50
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 8 inch
  • Weight: 1096.0 lb
  • Model: LF870W N-Pattern
  • Main Valve Body: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek Epoxy for Corrosion Resistance
  • Shutoff Valves: NRS Resilient Wedge Gate Valve
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F (continuous)
  • Lead Free Construction

Description

The 8-inch FEBCO MasterSeries LF870W Double Check Valve Assembly is a lead-free backflow preventer engineered to protect potable water systems from non-health hazard pollutants. Featuring a durable ductile iron body with ArmorTek® epoxy coating for superior corrosion resistance and non-rising stem (NRS) shutoff valves, it's designed for reliable performance in N-pattern horizontal installations. This assembly includes independent clapper check modules, field-replaceable stainless steel seats, and an in-line serviceable design, making it a robust solution for cross-connection control. It operates within a 33°F to 140°F temperature range and a maximum working pressure of 175 psi.

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Connections & Compatibility

  • The LF870W N-pattern assembly is designed for horizontal installations.
  • Its design allows for drop-in replacement of competitor's valves with longer gate-to-gate lengths.
  • End connections are compliant to ASME B16.1 Class 125 and AWWA Class D Flange standards.
  • This assembly is equipped with non-rising stem resilient wedge gate valves for shutoff.
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Additional Details

The FEBCO MasterSeries LF870W Double Check Valve Assembly is an 8 inch lead-free backflow preventer designed to prevent the backflow of non-health hazard pollutants into potable water supply lines due to backsiphonage or backpressure.

This assembly is ideal for protecting non-health hazard cross-connections or for containment at the service line entrance.

Features

  • Designed for drop-in replacement of longer valves with longer gate-to-gate length
  • In-line serviceable assembly requiring no special tools for servicing
  • Supports vertical up N-pattern installations
  • Equipped with a clapper check assembly featuring two independently acting check modules
  • Ductile iron valve body coated with ArmorTek® advanced epoxy system to resist microbial-induced corrosion (MIC) and protect exposed metal
  • Lead Free* construction, with wetted surfaces containing less than 0.25% lead by weight
  • Field replaceable stainless steel check seats and reversible, replaceable elastomer discs
  • Includes non-rising stem (NRS) resilient wedge gate valves
  • Winterization feature with disc retainers and valve body drain ports
  • Captured modular spring assembly and captured O-ring design
Important: The information provided is not intended to replace full product installation and safety information. Always thoroughly read all installation instructions and product safety information before beginning installation. Inquire with governing authorities for local installation requirements.

Specifications

  • Size: 8 inch
  • Model: LF870W (N-Pattern)
  • Main Valve Body Material: Ductile iron Grade 65-45-12
  • Body Coating: ArmorTek powder coating (internal and external surfaces)
  • Shutoff Valves: Non-Rising Stem (NRS) resilient wedge gate valve AWWA C509
  • 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: Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
  • Listed: ASSE 1015
  • Classified: UL Classified (U.S. & Canada)
  • Approved: FM Approved
  • Approved: IAPMO
  • Compliant: AWWA Standard C510
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
  • Certified: NSF/ANSI 61-G

FAQs

What type of backflow protection does this assembly provide?

This double check valve assembly protects against the backflow of non-health hazard pollutants due to backsiphonage or backpressure into the potable water supply. It is used for non-health hazard cross-connections or containment at the service line entrance.

What does "Lead Free" mean for this product?

"Lead Free" means that the wetted surface of this product, which comes into contact with consumable water, contains less than 0.25% of lead by weight, complying with low lead installation requirements.

What are the key features of the ArmorTek® coating?

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

Can this backflow preventer be installed in both horizontal and vertical orientations?

The LF870W model specifically supports vertical up/vertical down N-pattern installations. The Z-pattern (LF870WZ) model is for other orientations, but this SKU refers to the N-pattern.

What are the shutoff valves made of and what type are they?

The shutoff valves are non-rising stem (NRS) resilient wedge gate valves, compliant with AWWA C509 standards. Their construction features a ductile iron body with ArmorTek coating and stainless steel check components.

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