10 LF870WZ-DOSY DC

Item Number: 88007316
1 1
$39,417.01
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 10 inch
  • Weight: 1629.0 lb
  • Type: Lead Free Double Check Valve Assembly
  • Body Material: Ductile Iron with ArmorTek coating
  • Shutoff Valves: Domestic OSY Resilient Seated Gate Valves
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 33°F - 140°F
  • Approvals: ASSE 1015, UL Classified, FM Approved, IAPMO, AWWA C510, NSF/ANSI 61-G
  • Orientation: Vertical Up (Z-pattern)

Description

The 10 inch FEBCO MasterSeries LF870WZ Double Check Valve Assembly is a lead-free backflow preventer designed for vertical up (Z-pattern) installations. It protects potable water systems from backpressure and backsiphonage in non-health hazard applications. Featuring a ductile iron body with ArmorTek coating, stainless steel check components, and domestic OSY shutoff valves, this assembly offers a longer lay-length for easy competitor drop-in replacement. It operates from 10 to 175 PSI across a 33°F to 140°F temperature range. Approved by ASSE 1015, UL, FM, and NSF/ANSI 61-G, it ensures reliable performance and compliance for water system integrity.

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Connection Information

This 10 inch FEBCO MasterSeries LF870WZ double check valve assembly is designed for vertical up (Z-pattern) installations, providing a direct drop-in replacement for competitor’s Z-pattern backflow preventers. It should be installed on the potable water supply at each cross-connection point to protect against backpressure and backsiphonage in non-health hazard applications. The end connections are compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.

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Additional Details

This 10 inch lead free MasterSeries double check valve assembly is designed to prevent the backflow of polluted water from entering the potable water supply due to backsiphonage and/or backpressure in non-health hazard (pollutant) applications. It features a longer lay-length for drop-in replacement of competitor’s Z-pattern valves and a compact, modular design for easy in-line maintenance.

Primary Use

  • Protects potable water systems from backpressure and backsiphonage conditions
  • Suitable for non-health hazard (pollutant) applications
  • Ideal for continuous pressure piping applications and cross-connections

Features

  • Longer gate-to-gate length for drop-in replacement of existing valves
  • In-line serviceable assembly for easy maintenance
  • No special tools required for servicing
  • Captured modular spring assembly
  • Reversible and replaceable discs
  • Field replaceable seats
  • Ductile iron valve body design
  • Stainless steel check components
  • ArmorTek coating technology 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
  • Lead Free* construction (wetted surface contains less than 0.25% of lead by weight)

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12 with ArmorTek powder coating
  • Shutoff Valves: Domestic OSY resilient seated gate valves (AWWA C515, UL/FM)
  • Check Seats: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel

Specifications

  • Size: 10 inch
  • Brand: FEBCO MasterSeries
  • Model: LF870WZ
  • Product Type: Double Check Valve Assembly
  • Orientation: Vertical Up (Z-pattern)

Performance

  • Maximum Working Pressure: 175 PSI
  • Minimum Working Pressure: 10 PSI
  • Hydrostatic Test Pressure: 350 PSI
  • Hydrostatic Safety Pressure: 700 PSI
  • Temperature Range: 33°F - 140°F (0.5°C - 60°C) continuous

Materials

  • Body Material: Ductile Iron Grade 65-45-12
  • Body Coating: ArmorTek Powder Coating
  • Shutoff Valves: Domestic OSY Resilient Seated Gate Valves
  • Check Components: Stainless Steel
  • Check Seats: Stainless Steel
  • Disc Holder: Stainless Steel
  • Elastomer Disc: Silicone
  • Spring Material: Stainless Steel
  • Clamp Material: AWWA C606

Certificates & Approvals

  • Approved by: Foundation for Cross-Connection Control and Hydraulic Research (FCCCHR-USC)
  • ASSE Listed: 1015
  • UL Classified: Yes (U.S. & Canada)
  • FM Approved: Yes
  • IAPMO: Yes
  • AWWA Standard: C510 Compliant
  • End Connections: ASME B16.1 Class 125 & AWWA Class D Flange Compliant
  • NSF Certified: NSF/ANSI 61-G

FAQs

What is the primary use of the FEBCO MasterSeries LF870WZ Double Check Valve Assembly?

This assembly is designed to prevent the backflow of polluted water into the potable water supply due to backsiphonage and/or backpressure in non-health hazard (pollutant) applications. It is commonly used in continuous pressure piping systems and at cross-connections.

Is this backflow preventer suitable for replacing existing competitor valves?

Yes, the LF870WZ model features a longer gate-to-gate lay-length, specifically designed for drop-in replacement of competitor’s Z-pattern oriented valves.

What are the key materials used in the construction of this 10-inch backflow preventer?

The main valve body is made of ductile iron Grade 65-45-12 with ArmorTek powder coating. It features stainless steel check components, stainless steel seats, silicone elastomer discs, and domestic OSY resilient seated gate shutoff valves.

What are the operating pressure and temperature limits for this assembly?

This double check valve assembly has a maximum working pressure of 175 PSI and a minimum working pressure of 10 PSI. It can operate continuously in a temperature range of 33°F to 140°F (0.5°C to 60°C).

What certifications and approvals does the FEBCO LF870WZ hold?

The assembly is ASSE 1015 Listed, UL Classified, FM Approved, IAPMO approved, AWWA Standard C510 Compliant, and NSF/ANSI 61-G Certified. It is also approved by the FCCCHR-USC.

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