4 LF886V-OSY-GPM-FS

Item Number: F683226
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$16,122.38
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Febco
  • Size: 4 inch
  • Weight: 342.0 lb
  • Lead Free Construction: Less than 0.25% lead by weight
  • Body Material: Ductile Iron Grade 65-45-12
  • Corrosion Protection: ArmorTek® 3-part epoxy coating
  • Shutoff Valves: OSY resilient wedge gate valves
  • Relief Valve Seat & Check Components: Stainless Steel
  • Flood Sensor: SentryPlus Alert® technology for discharge detection
  • Bypass Meter: Gallons per minute (GPM)

Description

The FEBCO MasterSeries® LF886V is a 4 inch lead free Reduced Pressure Zone Detector Backflow Preventer Assembly, designed for high hazard and toxic applications in potable water systems. It features a durable ductile iron body with ArmorTek® advanced epoxy coating to resist corrosion, coupled with stainless steel relief valve seats and check components for long-term performance. This assembly includes OSY shutoff valves, a GPM metered bypass, and a SentryPlus Alert® flood sensor to detect and alert personnel to relief valve discharge. It is UL Classified and FM Approved, ensuring reliability for critical water protection. Item number F683226.

Help Me Connect

Connections

  • This assembly features flanged end connections compliant with ASME B16.1 Class 125 and AWWA Class D Flange standards.

Flood Sensor Connectivity

The integrated SentryPlus Alert® flood sensor requires an add-on connection kit to be activated and communicate alerts. Without this kit, the sensor is passive. Connection kit options include:

  • BMS (Building Management System) integration for wired communication.
  • Cellular network communication for remote alerts (call, email, text).
  • Sensor Control Monitor for integration with BAS (Building Automation Systems) via RS-485 Modbus or the Nexa® platform through Wi-Fi connectivity.
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Additional Details

The 4 inch FEBCO MasterSeries® LF886V Reduced Pressure Zone Detector Backflow Preventer Assembly is engineered to protect potable water systems from backpressure and backsiphonage in high hazard/toxic applications, typically found in industrial installations.

This assembly features OSY shutoff valves, a GPM metered bypass, and a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.

Construction & Durability

  • The valve body and relief valve body are constructed from ductile iron Grade 65-45-12.
  • All iron components are coated with ArmorTek®, a patented three-part advanced epoxy system designed to resist both microbial-induced corrosion (MIC) and general exposed metal substrate corrosion.
  • Features stainless steel relief valve seat and stainless steel check components for maximum performance and extended durability.
  • Designed for inline serviceability without special tools.

Flood Detection & Alerts

  • Equipped with a SentryPlus Alert® flood sensor to detect continuous discharge from the relief valve.
  • The flood sensor provides a signal that triggers a multichannel alert (call, email, text) to notify personnel about potential flooding, requiring an add-on connection kit for activation.
  • Available connection kit options include BMS, cellular communication, or the Sensor Control Monitor for integration with BAS (Building Automation Systems) via RS-485 Modbus or the Nexa® platform through Wi-Fi.

Use of the flood sensor does not replace the need to comply with all required instructions, codes, and regulations related to installation, operation, and maintenance of this product, including the need to provide proper drainage in the event of a discharge.

Specifications

  • Body Material: Ductile iron Grade 65-45-12
  • Coating: ArmorTek® powder coating
  • Shutoff Valves: OSY resilient wedge gate valve
  • Check Seats: Stainless steel
  • Relief Valve Seat: Stainless steel
  • Disc Holder: Stainless steel
  • Elastomer Disc: Silicone
  • Spring Material: Stainless steel
  • Clamp: AWWA C606

Performance Ratings

  • Maximum Working Pressure: 175 psi (12.1 bar)
  • Minimum Working Pressure: 20 psi (1.4 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)
  • Lead Content: Less than 0.25% by weight (wetted surface)

Bypass Assembly

  • Bypass Meter: 5/8 inch x 3/4 inch GPM (gallons per minute) water meter
  • Bypass Meter Compliance: ANSI/AWWA C700 Compliant

Certificates & Approvals

  • FCCCHR-USC Approved
  • ASSE 1047
  • UL Classified (US & Canada)
  • FM Approved
  • IAPMO/CUPC
  • AWWA C511 Compliant
  • CSA B64.4
  • End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange

FAQs

What is the primary purpose of the FEBCO LF886V backflow preventer?

The primary purpose is to protect potable drinking water systems from contamination due to backpressure and backsiphonage in high hazard/toxic applications, commonly found in industrial settings.

What is ArmorTek® coating and what are its benefits?

ArmorTek® is a patented three-part advanced epoxy system applied to the iron components. It is engineered to reduce microbial-induced corrosion (MIC) and protect against general exposed metal substrate corrosion, extending the life of the assembly.

How does the SentryPlus Alert® flood sensor work?

The flood sensor detects excessive water discharges from the relief valve. When activated with an add-on connection kit, it relays a signal to trigger multichannel alerts (call, email, text) to notify personnel of potential flooding.

Is this backflow preventer considered lead-free?

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

What type of shutoff valves are included with this assembly?

This assembly is fitted with OSY (Outside Stem and Yoke) resilient wedge gate valves, which are UL Classified and FM Approved.

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