Febco 2 1/2" LF850 NRS Gate Valves

Item Number: 0124527
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$6,686.93
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 2 1/2 inch
  • Valve Type: Double Check Valve Assembly
  • Shutoff Valves: NRS (Non-Rising Stem) Gate Valves
  • Body Material: Ductile Iron Grade 65-45-12
  • Coating: ArmorTek® Powder Epoxy
  • Max. Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • Approvals: ASSE 1015, UL Classified, FM Approved, CSA Listed

Description

The Febco 2 1/2 inch LF850 MasterSeries Double Check Valve Assembly with NRS gate valves is a lead-free backflow preventer designed for non-health hazard applications. It protects potable water systems from pollutants caused by backpressure or backsiphonage. This assembly features an epoxy-coated ductile iron body, stainless steel check components, and field-replaceable seats. With a maximum working pressure of 175 psi and a continuous temperature range of 33°F to 140°F, it is ASSE 1015 listed, UL Classified, and FM Approved, ensuring reliable performance and compliance for commercial and industrial use. Item number 0124527.

Help Me Connect

The Febco 2 1/2" LF850 Double Check Valve Assembly is designed for in-line installation on potable water supply lines. It protects against backpressure and backsiphonage in non-health hazard (pollutant) applications.

Connections

  • Features flanged end connections compliant with ASME B16.1 Class 125 and AWWA Class D Flange.
  • Equipped with NRS (Non-Rising Stem) gate valves for shutoff.
  • Ensure compatibility with local plumbing codes and standards for double check valve assemblies in non-health hazard applications.
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Additional Details

The Febco 2 1/2 inch LF850 MasterSeries Lead Free Double Check Valve Assembly with NRS (Non-Rising Stem) gate valves is designed to protect potable water systems from backflow and backsiphonage of non-health hazard (pollutant) substances. It is ideal for protecting non-health hazard cross-connections and for containment at the service line entrance.

This assembly prevents objectionable, non-toxic pollutants from entering the potable water supply. It features an in-line design with an epoxy coated ductile iron body and flanged end connections.

Key Features

  • Lead Free construction: wetted surfaces contain less than 0.25% lead by weight
  • In-line serviceable assembly requiring no special tools for servicing
  • Equipped with two independent clapper-style check modules
  • Field replaceable seats and reversible and replaceable discs
  • Ductile iron valve body design with ArmorTek® coating technology to resist microbial-induced corrosion (MIC) and electrochemical corrosion
  • Stainless steel check components, disc holder, and springs
  • Non-Rising Stem (NRS) resilient wedge gate valves per AWWA C509 standard
  • Features a winterization capability with disc retainers and valve body drain ports
  • Captured modular spring assembly and captured O-ring design
  • Commonality between 1st and 2nd check components

Please note: This is a non-stock, special order item and could take up to 2 weeks or more to deliver. All non-stock items are non-refundable. Please order carefully and contact us with any questions before ordering.

Specifications

General

  • Product Type: Double Check Valve Assembly
  • Brand: FEBCO
  • Model: LF850
  • Size: 2 1/2 inch
  • SKU: 0124527

Materials

  • Main Valve Body: Ductile iron Grade 65-45-12
  • Coating: ArmorTek® powder coating (internal and external surfaces)
  • Shutoff Valves: NRS resilient wedge gate valves AWWA C509
  • Check Seats: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring: Stainless steel

Performance

  • 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 (Nominal)

  • Overall Length (A): 40 3/4 inch (1035 mm)
  • Lay Length (B): 25 1/2 inch (648 mm)
  • Height (C): 10 inch (254 mm)
  • NRS Shutoff Valve Length (D): 12 5/8 inch (321 mm)
  • Flange to Flange (F): 4 1/2 inch (114 mm)
  • Pipe Center to Ground (G): 7 1/8 inch (181 mm)
  • Weight (NRS): 226 lbs (103 kg)

Connections

  • End Connections: Flanged, Compliant to ASME B16.1 Class 125 & AWWA Class D Flange

Certificates & Approvals

  • Lead Free*: Wetted surface contains less than 0.25% lead by weight
  • 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
  • CSA Listed
  • AWWA Standard C510 Compliant
  • Certified to NSF/ANSI 61-G

FAQs

What type of applications is the Febco LF850 Double Check Valve Assembly suitable for?

This assembly is specifically designed for non-health hazard (pollutant) applications to prevent backflow and backsiphonage into potable drinking water systems. It is not intended for health hazard applications.

Does this backflow preventer comply with "lead free" requirements?

Yes, the Febco LF850 features lead-free construction. The wetted surface of this product that contacts consumable water contains less than 0.25% lead by weight, complying with low lead installation requirements.

What are the key features of the LF850's construction materials?

The valve body is made of durable ductile iron Grade 65-45-12, coated with ArmorTek® powder epoxy for corrosion resistance. It features stainless steel check components, disc holders, and springs, with silicone elastomer discs.

What is the maximum working pressure and temperature range for this assembly?

The Febco LF850 Double Check Valve Assembly has a maximum working pressure of 175 psi (12.1 bar) and operates continuously within a temperature range of 33°F to 140°F (0.5°C to 60°C).

Are special tools required to service the Febco LF850?

No, this assembly is designed for in-line serviceability and does not require any special tools for maintenance or replacement of its reversible and replaceable discs and field replaceable seats.

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