Febco 3" LF870V OS&Y Gates Valves

Item Number: 0683111
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$8,984.82
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 3 inch
  • Valve Type: Double Check Valve Assembly
  • Max. Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Main Valve Body: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Epoxy Coating
  • Shutoff Valves: OS&Y Gate Valves
  • Approvals: ASSE 1015, UL Classified, FM Approved, IAPMO, AWWA C510, NSF/ANSI 61-G

Description

The Febco 3 inch LF870V Double Check Valve Assembly is a lead-free backflow preventer designed for non-health hazard (pollutant) applications in potable water systems. It protects against backpressure and backsiphonage, suitable for continuous pressure piping. Featuring a ductile iron body with ArmorTek® epoxy coating for corrosion resistance, the assembly includes OS&Y gate valves and stainless steel check components. It offers field-replaceable seats and discs for easy in-line servicing. Approved by ASSE, UL, FM, and AWWA, it operates within a 33°F to 140°F temperature range and up to 175 psi maximum working pressure. Item number 0683111.

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Connections

The FEBCO LF870V Double Check Valve Assembly is supplied with OS&Y (Outside Stem & Yoke) Gate Valves and features standard flange connections. These connections are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.

Installation Orientation

  • The assembly is shipped in the standard (N-pattern) orientation, suitable for horizontal installations.
  • It can be reconfigured for vertical-up (Z-pattern) installations, where the inlet flow is vertical up and outlet flow is vertical down.
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Additional Details

The Febco 3 inch LF870V Lead Free MasterSeries® Double Check Valve Assembly is designed to protect potable water systems from possible backpressure and backsiphonage conditions in non-health hazard (pollutant) applications. This assembly is ideal for continuous pressure piping and at cross-connections with non-toxic contaminants.

Key Features

  • Lead Free* construction: Complies with low lead installation requirements.
  • ArmorTek® coating technology: Patented three-part advanced epoxy system reduces microbial-induced corrosion (MIC) and protects exposed metal substrate on iron components.
  • In-line serviceable assembly: Modular design allows for easy maintenance without special tools.
  • Configurable installation patterns: Supports both horizontal N-pattern and vertical up Z-pattern installations.
  • Includes OS&Y (Outside Stem & Yoke) resilient seated gate valves.
  • Features two independently acting clapper style check modules with replaceable seats and disc rubbers.
  • Stainless steel check components ensure durability.

The information contained herein is not intended to replace the full product installation and safety information available or the experience of a trained product installer. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product. Inquire with governing authorities for local installation requirements.

Specifications

  • Size: 3 inch
  • Valve Type: Double Check Valve Assembly
  • Shutoff Valves: OS&Y (Outside Stem & Yoke) Gate Valves
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® powder coating, applied to internal and external surfaces
  • Check Seats Material: Stainless steel
  • Disc Holder Material: Stainless steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless steel
  • Clamp Material: AWWA C606
  • 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
  • Overall Length (N-Pattern): 25 3/4 inches (654 mm)
  • Weight (with OS&Y Gate Valves): 227 lbs (103 kg)

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 the Febco 3 inch LF870V Double Check Valve Assembly?

This assembly is specifically designed to protect potable drinking water systems from possible backpressure and backsiphonage conditions in non-health hazard (pollutant) applications. It prevents polluted water from re-entering the main water supply.

What does 'Lead Free' mean for this product?

The 'Lead Free' designation means that the wetted surface of this product, which comes into contact with consumable water, contains less than 0.25% of lead by weight. This complies with low lead installation requirements and state codes.

What types of installations is this backflow preventer suitable for?

The LF870V is approved for both horizontal (N-pattern) and vertical-up (Z-pattern) installations. It is shipped in the standard N-pattern but can be reconfigured for vertical offset use.

What are the main materials used in the construction of this valve assembly?

The main valve body is made of Ductile Iron Grade 65-45-12, coated with ArmorTek® advanced epoxy system for corrosion resistance. Internal components like check seats, disc holders, and springs are made of stainless steel, with silicone elastomer discs.

What are the maximum operating pressure and temperature range for the LF870V?

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

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