6 LF886-WZ-LG-GPM-FS
Item Number: F8007419Brand - Febco
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- Size: 6 inch
- Weight: 245.0 lb
- Reduced Pressure Zone Detector Assembly (Type II)
- Z-Pattern lay length for competitor drop-in replacement
- Ductile iron body with ArmorTek® corrosion resistant coating
- Stainless steel relief valve seat and check components
- Integrated flood sensor with SentryPlus Alert® technology
- Gallons per Minute (GPM) metered bypass
- Maximum Working Pressure: 175 psi
Description
Description
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Compatibility & Connections
- Designed for drop-in replacement of competitor’s Z-pattern valves due to its longer lay length.
- The integrated flood sensor requires an add-on connection kit for activation and communication.
- Connection kit options include those for Building Automation Systems (BMS) or cellular communication.
- The flood sensor integrates with the Sensor Control Monitor for alerts via RS-485 Modbus (BAS) or the Nexa® platform (Wi-Fi).

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Additional Details
This 6 inch lead free MasterSeries® reduced pressure detector backflow preventer assembly (RPDA) protects against high hazard (toxic) fluids in industrial water service installations and applications. It features a longer Z-pattern lay length for competitor drop-in replacement, comes without shutoff valves, and includes a gallons per minute (GPM) metered bypass and an integrated flood sensor.
Main Valve Features
- Constructed with a ductile iron valve body and coated with ArmorTek® corrosion resistant technology.
- Equipped with a stainless steel relief valve seat and stainless steel check components for maximum performance and durability.
- Designed for longer gate-to-gate length to allow drop-in replacement of existing longer valves.
- Features an inline serviceable assembly, requiring no special tools for maintenance.
- Includes a captured modular spring assembly, reversible and replaceable discs, and field replaceable seats.
- Utilizes a modular and repairable pressure differential relief valve with clapper check assembly and captured O-ring design.
Flood Sensor Details
- Integrated sensor on the relief valve for flood detection with SentryPlus Alert® technology to detect continuous discharge.
- Activated by an add-on connection kit for BMS or cellular network communication.
- Can be integrated with the Sensor Control Monitor for alerts via RS-485 Modbus (BAS) or the Nexa® platform (Wi-Fi).
An add-on connection kit is required to activate the flood sensor for alert relay. Without the connection kit, the flood sensor is a passive component that does not communicate with any other device.
Auxiliary Bypass Features
- Features a compact design that remains within the main valve assembly profile.
- Includes an inline serviceable 3/4" check assembly, requiring no special tools for servicing.
- Designed with a field replaceable seat and disc.
- Capable of detecting potential underground water leaks and unauthorized water usage.
Specifications
General
- Size: 6 inch
- Model: LF886W/WZ Reduced Pressure Zone Detector Assembly (Type II)
- Pattern: Z-Pattern
- Shutoff Valves: Not included
- Bypass: Gallons per Minute (GPM) Totalizing Meter (5/8" x 3/4" water meter ANSI/AWWA C700 Compliant)
- Flood Sensor: Yes, with SentryPlus Alert® technology
Materials
- Main Valve Body Material: Ductile iron Grade 65-45-12
- Relief Valve Body Material: Ductile iron Grade 65-45-12
- Coating: ArmorTek® powder coating (internal and external surfaces)
- Check Seats Material: Stainless steel
- Relief Valve Seat Material: Stainless steel
- Disc Holder Material: Stainless steel
- Elastomer Disc Material: Silicone
- Spring Material: Stainless steel
- Clamp Material: AWWA C606
Pressure & Temperature
- Maximum Working Pressure: 175 psi
- Minimum Working Pressure: 20 psi
- Hydrostatic Test Pressure: 350 psi
- Hydrostatic Safety Pressure: 700 psi
- Temperature Range: 33°F - 140°F (0.5°C - 60°C) continuous
Certificates & Approvals
- FCCHR-USC Approved
- ASSE 1047 Approved
- UL Classified (US & Canada)
- FM Approved
- IAPMO/cUPC Approved
- AWWA Standard C511-Compliant
- CSA B64.4 Approved
- End Connections: Compliant to ASME B16.1 Class 125 & AWWA Class D Flange