8 LF870W-DOSY

Item Number: 88005414
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: 1110.0 lb
  • Lead Free: Yes
  • Main Valve Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek Advanced Epoxy System
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F continuous
  • Shutoff Valves: Domestic OSY Resilient Wedge Gate Valves
  • Approvals: ASSE 1015, UL Classified, FM Approved, IAPMO, AWWA C510, NSF 61-G

Description

The FEBCO 8 inch LF870W Lead Free Double Check Valve Assembly is designed to prevent polluted water from contaminating potable water supplies due to backsiphonage or backpressure. This N-pattern unit features a durable ductile iron body with ArmorTek advanced epoxy coating for superior corrosion resistance and Lead Free construction. Equipped with domestic OSY resilient seated gate valves and clapper-style check modules, it offers easy in-line servicing without special tools. Ideal for non-health hazard applications and continuous pressure piping, it provides reliable protection in accordance with national plumbing codes and water authority requirements. Approved by ASSE, UL, FM, IAPMO, AWWA, and NSF 61-G. Item number 88005414.

Help Me Connect

This 8 inch FEBCO MasterSeries LF870W Double Check Valve Assembly is designed for drop-in replacement in both N-pattern (horizontal) and Z-pattern (vertical up) orientations, though this specific model is configured for N-pattern. It is equipped with AWWA Compliant inlet/outlet resilient seated shutoff valves and its end connections comply with ASME B16.1 Class 125 & AWWA Class D Flange standards, ensuring broad compatibility with existing piping systems for non-health hazard applications.

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Additional Details

The FEBCO MasterSeries LF870W Double Check Valve Assembly is an 8 inch lead-free backflow preventer designed to protect potable water systems from backsiphonage and backpressure of non-health hazard (pollutant) water. This assembly is ideal for cross-connections where local codes mandate protection from non-potable quality water, particularly in continuous pressure piping applications.

Key Features

  • Features a Ductile iron valve body with ArmorTek® coating, a patented three-part advanced epoxy system to resist microbial-induced corrosion (MIC) and protect exposed metal substrate.
  • Designed for drop-in replacement of competitor's valves with longer gate-to-gate length.
  • In-line serviceable assembly requires no special tools for servicing check modules, accessible via independent top entry covers.
  • Includes domestic OSY resilient seated gate valves for shutoff.
  • Clapper check assembly with two in-line independent positive seating check modules, captured springs, and replaceable discs and seats.
  • Equipped with four properly located resilient seated test cocks.
  • Lead Free* construction complies with low lead installation requirements (wetted surface contains less than 0.25% of lead by weight).
  • Winterization feature with disc retainers and valve body drain ports.

Installation Orientation

  • Supports Horizontal (N-pattern) installations.
  • Supports Vertical up/vertical down N-pattern installations.

Specifications

  • Size: 8 inch
  • Product Type: Double Check Valve Assembly
  • Valve Series: LF870W
  • Shutoff Type: Domestic OSY Resilient Wedge Gate Valves
  • Check Module Type: Clapper Style
  • Coating Technology: ArmorTek® Advanced Epoxy
  • Lead Free: Yes (wetted surface <0.25% lead by weight)

Materials

  • Main Valve Body: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek Powder Coating (internal and external)
  • Shutoff Valves: OSY Resilient Wedge Gate Valve AWWA C515 (UL/FM)
  • Check Seats: Stainless Steel
  • Disc Holder: Stainless Steel
  • Elastomer Disc: Silicone
  • Spring: Stainless Steel
  • Clamp: AWWA C606

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

Dimensions (N-Pattern)

  • Length (A): 48 inches (1219 mm)
  • Width (B): 29 inches (737 mm)
  • C: 9 1/4 inches (235 mm)
  • D: 36 3/8 inches (924 mm)
  • E: 24 7/8 inches (632 mm)
  • F: 20 3/4 inches (527 mm)
  • G: 41 1/2 inches (1054 mm)
  • H: 6 3/4 inches (172 mm)
  • I: 23 1/2 inches (597 mm)
  • J: 37 3/4 inches (959 mm)

Weight

  • Weight (with OSY Shutoff Valves): 810 lbs (367 kg)

Certificates & Approvals

  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research (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 application of the FEBCO 8 inch LF870W Double Check Valve Assembly?

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

What does 'Lead Free' mean for this backflow preventer?

The 'Lead Free' designation means the wetted surface of this product, when contacted by consumable water, contains less than 0.25% of lead by weight, complying with low lead installation requirements and state codes.

Does this backflow preventer require special tools for maintenance?

No, this double check valve assembly is designed for in-line servicing, and no special tools are required for maintaining its two independent check modules, which are accessed through independent top entry covers.

What type of shutoff valves are included with this assembly?

This assembly comes with domestic OSY (Outside Stem and Yoke) resilient seated gate valves, which are UL Classified and FM Approved according to AWWA C515 standards.

What is the maximum operating pressure and temperature range for this unit?

The maximum working pressure for this 8 inch LF870W assembly is 175 psi (12.1 bar). It can operate continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).

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