4 LF870-W-LG

Item Number: 88005412
1 1
$5,802.75
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Product Type: Double Check Valve Assembly
  • Weight: 225.0 lb
  • Size: 4 inch
  • Lead Free: Yes
  • Body Material: Ductile iron with ArmorTek coating
  • Maximum Working Pressure: 175 psi
  • Application: Non-health hazard backflow prevention
  • Designed for drop-in replacement of N-pattern valves
  • Approved by ASSE 1015, UL Classified, FM Approved

Description

This 4-inch FEBCO MasterSeries LF870W/WZ Double Check Valve Assembly is designed to prevent backflow of non-health hazard pollutants into potable water supplies. Featuring lead-free construction and a durable ductile iron body with ArmorTek coating for superior corrosion resistance, this assembly ensures reliable performance. Its longer gate-to-gate length allows for convenient drop-in replacement of competitor N-pattern valves. The assembly operates at a maximum working pressure of 175 psi and is approved by ASSE 1015, UL Classified, and FM Approved, ensuring compliance and reliability.

Help Me Connect

This 4 inch double check valve assembly features flanged end connections, compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards. It is specifically designed with a longer gate-to-gate length for drop-in replacement into existing systems that utilize competitor N-pattern valves.

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Additional Details

This 4 inch Lead Free FEBCO MasterSeries LF870W/WZ Double Check Valve Assembly, supplied without shutoff valves, is designed for non-health hazard applications, preventing the backflow of pollutants into the potable water supply due to backsiphonage or backpressure. It is ideal for protecting non-health hazard cross-connections or for containment at the service line entrance.

This backflow preventer is specifically engineered with a longer lay length for easy drop-in replacement of competitor N-pattern valves, providing a practical solution for system upgrades or maintenance.

Features

  • Lead Free construction complies with low lead installation requirements (wetted surface contains less than 0.25% lead by weight).
  • ArmorTek® coating, a patented three-part advanced epoxy system, protects ductile iron components against microbial-induced corrosion (MIC) and exposed metal substrate corrosion.
  • Longer gate-to-gate length for drop-in replacement of competitor N-pattern valves.
  • In-line serviceable assembly requires no special tools for servicing.
  • Includes two (2) independently acting approved clapper style check modules with replaceable seats and disc rubbers.
  • Ductile iron valve body design ensures durability.
  • Stainless steel check components for reliable performance.
  • Suitable for horizontal N-pattern and vertical up Z-pattern installations.
  • Winterization feature with disc retainers and valve body drain ports.
  • Commonality between 1st and 2nd check components for simplified maintenance.

Construction

  • Main Valve Body: Ductile iron Grade 65-45-12 with ArmorTek powder coating applied to internal and external surfaces.
  • Check Seats: Stainless steel, replaceable.
  • Disc Holder: Stainless steel.
  • Elastomer Disc: Silicone.
  • Spring: Stainless steel.
  • Clamps: AWWA C606.

Specifications

  • Product Type: Double Check Valve Assembly
  • Size: 4 inch
  • Brand: FEBCO MasterSeries LF870W/WZ
  • Lead Free: Yes (Wetted surface contains less than 0.25% lead by weight)
  • Orientation: N-Pattern (LF870W) or Z-Pattern (LF870WZ)

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

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek powder coating
  • Check Seats: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel
  • Clamp: AWWA C606
  • End Connections: Flanged

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 this product primarily used for?

This 4-inch FEBCO MasterSeries Double Check Valve Assembly is designed for non-health hazard applications to prevent the backflow of pollutants into potable water systems due to backsiphonage or backpressure. It is suitable for protecting non-health hazard cross-connections.

What are the key construction materials?

The main valve body is ductile iron Grade 65-45-12 with ArmorTek powder coating. Check seats, disc holders, and springs are stainless steel, while the elastomer discs are silicone.

What is the maximum operating pressure?

The maximum working pressure for this 4-inch assembly is 175 psi (12.1 bar). It has been hydrostatically tested up to 350 psi and has a hydrostatic safety pressure of 700 psi.

Is this backflow preventer lead-free?

Yes, this FEBCO MasterSeries assembly features lead-free construction. The wetted surface of the product contains less than 0.25% of lead by weight, complying with low lead installation requirements.

Can this assembly replace existing valves?

Yes, it is specifically designed with a longer gate-to-gate length for convenient drop-in replacement of competitor N-pattern valves, making it easy to integrate into existing systems.

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