8 LF870WZ-DOSY

Item Number: 88007325
1 1
$28,614.74
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 8 inch
  • Weight: 1115.0 lb
  • Lead Free Construction: Less than 0.25% lead by weight
  • Orientation: Z-Pattern Vertical Up Installation
  • Body Material: Ductile Iron with ArmorTek Coating
  • Shutoff Valves: Domestic OSY Resilient Seated Gate Valves
  • Max Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Certifications: ASSE 1015, UL Classified, FM Approved

Description

The FEBCO 8 inch MasterSeries LF870WZ is a lead free double check valve backflow preventer assembly designed for Z-pattern vertical up installations. It protects potable water systems from non-health hazard pollutants caused by backpressure or backsiphonage. Featuring a durable ArmorTek epoxy coated ductile iron body and domestic OSY shutoff valves, this assembly offers drop-in replacement for competitor valves. Its modular design allows for in-line servicing without special tools, making maintenance straightforward. Certified by ASSE, UL, FM, and NSF, it ensures reliable performance in continuous pressure applications. Item number 88007325.

Help Me Connect

Installation Orientation

  • The LF870WZ model is designed for Z-pattern installations, specifically for vertical up flow (inlet flow vertical up and outlet flow vertical up).

Connections

  • This assembly is fitted with AWWA Compliant inlet/outlet resilient seated shutoff valves.
  • End connections are compliant to ASME B16.1 Class 125 and AWWA Class D Flange standards.
  • It is designed for drop-in replacement of competitor's Z-pattern valves, featuring a longer lay-length.
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Additional Details

The FEBCO MasterSeries LF870WZ is an 8 inch lead free double check valve backflow preventer assembly designed to prevent the backflow of polluted water into potable water supplies due to backsiphonage or backpressure.

This assembly provides drop-in replacement for competitor's Z-pattern valves, featuring a longer lay-length and a compact, modular design for easy in-line maintenance. It is ideal for protecting continuous pressure piping applications and cross-connections identified as non-health hazards.

Design & Operation

  • Designed for Z-pattern vertical up flow installations (inlet flow vertical up and outlet flow vertical up).
  • Features two in-line independent positive seating check modules with clapper checks.
  • Equipped with top mounted test cocks for easy testing.
  • Captured modular spring assembly, reversible and replaceable discs, and field replaceable seats facilitate straightforward servicing without special tools.
  • Includes domestic OSY resilient seated gate valves.
  • Winterization feature with disc retainers and valve body drain ports.
  • Commonality between 1st and 2nd check components simplifies maintenance.

Materials & Construction

  • Ductile iron Grade 65-45-12 body with ArmorTek® powder coating applied to internal and external surfaces.
  • ArmorTek® patented three-part advanced epoxy system resists microbial-induced corrosion (MIC) and protects exposed metal substrate.
  • Stainless steel check seats, disc holders, and springs.
  • Silicone elastomer discs.
  • AWWA C606 clamps.
  • Lead Free construction: Wetted surfaces contain less than 0.25% lead by weight.

Specifications

  • Nominal Size: 8 inch
  • Model: LF870WZ
  • Type: Double Check Valve Assembly
  • Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Powder Coating
  • Shutoff Valves: Domestic OSY Resilient Seated Gate Valves (AWWA C515)
  • Check Seat Material: Stainless Steel
  • Disc Holder Material: Stainless Steel
  • Elastomer Disc Material: Silicone
  • Spring Material: Stainless Steel
  • Clamp Material: AWWA C606
  • Minimum Working Pressure: 10 psi (0.7 bar)
  • Maximum Working Pressure: 175 psi (12.1 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

  • 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
  • Approved by FCCCHR-USC (Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California)

FAQs

What does "lead free" mean for this backflow preventer?

Lead free for this product means that the wetted surfaces, which come into contact with consumable water, contain less than 0.25% lead by weight, complying with low lead installation requirements.

What type of backflow conditions does this assembly protect against?

This double check valve assembly protects against both backpressure and backsiphonage conditions, preventing polluted water from entering the potable water supply in non-health hazard (pollutant) applications.

Can this 8-inch backflow preventer be installed in any orientation?

No, the LF870WZ model is specifically designed for Z-pattern vertical up installations, where both the inlet and outlet flow are vertical up.

What are the key maintenance features of this backflow preventer?

This assembly is designed for in-line servicing with no special tools required. It features a captured modular spring assembly, reversible and replaceable discs, field replaceable seats, and commonality between 1st and 2nd check components, all contributing to easy maintenance.

What is ArmorTek® coating and why is it important?

ArmorTek® is a patented three-part advanced epoxy system applied to the ductile iron body's internal and external surfaces. It is engineered to reduce microbial-induced corrosion (MIC) and protect the exposed metal substrate, enhancing the valve's durability and lifespan.

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