Valve Type: Reduced Pressure Zone Detector Assembly (Type II)
Body Material: Ductile iron Grade 65-45-12
Corrosion Protection: ArmorTek® powder coating
Relief Valve Seat: Stainless steel
Max. Working Pressure: 175 psi
Temperature Range: 33°F - 140°F
Flood Detection: SentryPlus Alert® sensor
Description
This 8-inch FEBCO MasterSeries® LF886W reduced pressure detector backflow preventer assembly protects potable water systems from high hazard (toxic) fluids in industrial and commercial applications. Engineered for backpressure and backsiphonage protection, it features a longer N-pattern lay-length for direct drop-in replacement. The durable ductile iron body, coated with ArmorTek® for corrosion resistance, includes stainless steel check components and a relief valve seat. A cubic feet per minute (CFM) metered bypass detects leaks, and the integrated SentryPlus Alert® flood sensor provides alerts for excessive relief valve discharge when paired with a connection kit.
Help Me Connect
Installation & Compatibility
This assembly is designed to provide a drop-in replacement for competitor’s N-pattern valves, featuring a longer gate-to-gate length.
An add-on connection kit is required to activate the flood sensor for full functionality.
The flood sensor supports integration with BMS, cellular communication, or the Sensor Control Monitor for connecting to BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
This 8 inch lead free FEBCO MasterSeries® reduced pressure detector backflow preventer assembly is designed to protect potable water systems from contamination by high hazard (toxic) fluids in water services to industrial installations and applications. It features a longer N-pattern lay-length for drop-in replacement of competitor’s valves, ensuring robust protection against backpressure and backsiphonage conditions.
This N-pattern assembly includes domestic outside stem and yoke (OSY) shutoff valves, a durable ductile iron body, replaceable stainless steel check seats, a cubic feet per minute (CFM) metered bypass, and ball valve test cocks. Improved with a stainless-steel relief valve seat, these rugged assemblies yield greater dependability and extended valve life.
Main Valve Features
Stainless steel relief valve seat and stainless steel check components for maximum performance and durability
Longer gate-to-gate length for drop-in replacement of longer valves
Inline serviceable assembly; no special tools required
Captured modular spring assembly
Reversible and replaceable discs
Field replaceable seats
Ductile iron valve body design
ArmorTek® coating technology to resist corrosion of internals
Modular and repairable pressure differential relief valve
Clapper check assembly
Captured O-ring design
SentryPlus Alert® flood sensor on relief valve for flood detection, activated by add-on connection kit for BMS or cellular network communication
Auxiliary Bypass Features
Compact design; remains in main valve assembly profile
Inline serviceable 3/4 inch check assembly; no special tools required
No special tools required for servicing
Field replaceable seat and disc
Detect potential underground water leaks
Detect unauthorized water usage
Flood Sensor Details
This backflow assembly contains a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When paired with an add-on connection kit, the sensor is activated to relay alerts for potential flooding events. Connection kit options include BMS, cellular communication, and the Sensor Control Monitor which enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
Specifications
Size: 8 inch
Pattern: N-Pattern
Valve Type: Reduced Pressure Zone Detector Assembly (Type II)
Materials
Main Valve Body: Ductile iron Grade 65-45-12
Relief Valve Body: Ductile iron Grade 65-45-12
Coating: ArmorTek powder coating, applied to internal and external surfaces
Shutoff Valves: OSY resilient wedge gate valve AWWA C515 (UL Classified and FM Approved)
Check Seats: Stainless steel
Relief Valve Seat: Stainless steel
Disc Holder: Stainless steel
Elastomer Disc: Silicone
Spring: Stainless steel
Clamp: AWWA C606
Pressure - Temperature
Max. Working Pressure: 175 psi (12.1 bar)
Min. 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) continuous
Bypass Meter
Meter Type: Cubic feet per minute (CFM)
Meter Size: 5/8 inch x 3/4 inch water meter
Meter Compliance: ANSI/AWWA C700
Certificates & Approvals
Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
ASSE 1047
UL Classified (US & Canada)
FM Approved
IAPMO/CUPC
AWWA Standard C511 Compliant
End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange
CSA B64.4
FAQs
What type of backflow protection does this assembly offer?
This MasterSeries® LF886W/WZ provides protection against both backpressure and backsiphonage conditions, specifically for high hazard (toxic) applications in accordance with Local Governing Water Utility Codes.
Can this backflow preventer be used as a replacement for other brands?
Yes, it is designed for drop-in replacement of competitor's valves, particularly those with an N-pattern lay-length, making it easier to upgrade existing systems.
What is ArmorTek® coating, and why is it important?
ArmorTek® is a patented three-part advanced epoxy system applied to the ductile iron components. It's engineered to reduce microbial-induced corrosion (MIC) and protect exposed metal surfaces, extending the product's lifespan.
How does the SentryPlus Alert® flood sensor work?
The flood sensor detects excessive water discharges from the relief valve. When an add-on connection kit is installed, it relays a signal that triggers a multichannel alert (call, email, text) to notify personnel about potential flooding.
What is the bypass meter's function?
The auxiliary bypass line includes a 5/8 inch x 3/4 inch water meter that measures flow in cubic feet per minute (CFM). This meter is designed to detect potential underground water leaks or unauthorized water usage within the system.
