6 LF870-WZ-DOSY

Item Number: 88007322
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
  • Size: 6 inch
  • Weight: 690.0 lb
  • Type: Lead Free Double Check Valve Assembly
  • Orientation: Z-pattern lay length for competitor drop-in replacement
  • Body Material: Ductile Iron Grade 65-45-12 with ArmorTek coating
  • Shutoff Valves: Domestic OSY resilient seated gate valves
  • Max. Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F continuous
  • Lead Free construction for low lead installation requirements

Description

The 6 inch FEBCO MasterSeries LF870W/WZ Double Check Valve Assembly is a lead-free backflow preventer designed to protect potable water systems from polluted water due to backsiphonage or backpressure. This Z-pattern unit offers a longer lay-length for easy drop-in replacement of competitor valves. It features a durable ductile iron body with ArmorTek coating for corrosion resistance, stainless steel check components, and OSY shutoff valves. The assembly is ideal for non-health hazard pollutant applications in continuous pressure piping, with in-line serviceable design for easy maintenance. Item number 88007322.

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Assembly Flow Orientation

  • Standard installation is inlet flow vertical up and outlet flow vertical down.
  • Vertical installation is inlet flow vertical up and outlet flow vertical up.
  • The Z-pattern orientation is designed for drop-in replacement of a competitor's Z-pattern valves.
  • 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® LF870W/WZ double check valve backflow preventer assembly is specifically designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure, in accordance with national plumbing codes and water authority requirements.

It features a longer lay-length for drop-in replacement of competitor’s Z-pattern valves and a compact modular design for easy maintenance and in-line repairs. This assembly is ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards and non-toxic containment.

Features

  • Lead Free* construction to comply with low lead installation requirements
  • Longer gate-to-gate length for drop-in replacement of longer valves (Z-pattern)
  • In-line serviceable assembly requiring no special tools for servicing
  • Captured modular spring assembly
  • Reversible and replaceable discs
  • Field replaceable seats
  • Ductile iron valve body design (Grade 65-45-12)
  • Stainless steel check components
  • ArmorTek® coating technology applied to internal and external surfaces to resist corrosion of internals
  • Winterization feature with disc retainers and valve body drain ports
  • Clapper check assembly
  • Commonality between 1st and 2nd check components
  • Captured O-ring design
  • Approved for horizontal and/or vertical-up installations
  • Assembly configured with UL Classified/FM Approved OS&Y RW gate valves

*The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Specifications

  • Size: 6 inch
  • Product Type: Double Check Valve Assembly
  • Model: LF870W/WZ (Z-Pattern)
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek powder coating (applied to internal and external surfaces)
  • Shutoff Valves: Domestic OSY resilient seated gate valves (AWWA C515 UL/FM)
  • 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

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 use of the 6 inch LF870W/WZ Double Check Valve Assembly?

This assembly is primarily used on potable drinking water systems to protect against possible backpressure and backsiphonage conditions for non-health hazard (pollutant) applications. It prevents polluted water from entering the potable water supply.

What does 'Z-pattern lay length' mean for this valve?

The Z-pattern lay length means the valve is designed for drop-in replacement of a competitor's valves that also use a Z-pattern orientation, allowing for easier upgrades or replacements without extensive piping modifications.

Is this backflow preventer considered lead-free?

Yes, this is a Lead Free* assembly. The wetted surface of the product that contacts consumable water contains less than 0.25% of lead by weight, complying with low lead installation requirements.

What materials are used for the main components of this valve?

The main valve body is made of Ductile Iron Grade 65-45-12 and coated with ArmorTek advanced epoxy. Internal check components, seats, and springs are stainless steel, while the elastomer discs are silicone.

What are the pressure and temperature limits for this assembly?

The maximum working pressure is 175 psi, with a minimum working pressure of 10 psi. It is rated for continuous operation within a temperature range of 33°F to 140°F (0.5°C to 60°C).

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