8 994-LF-FS

Item Number: F438066
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$24,417.01
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Watts
  • 8 Inch Reduced Pressure Zone (RPZ) Backflow Preventer
  • Weight: 179.0 lb
  • Lead-Free Stainless Steel Body and Internal Parts
  • Includes Flood Sensor with SentryPlus Alert Technology
  • Designed without Shutoff Valves (LF Model)
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 33°F-110°F
  • Compact, Short Lay Length Design
  • No Special Tools Required for Servicing

Description

This 8 inch Watts Series 994 Reduced Pressure Zone (RPZ) backflow preventer offers lead-free protection for potable water supplies against health hazard cross-connections. Featuring a durable stainless steel body and internal components, this model is designed without shutoff valves for specific system requirements. It includes a SentryPlus Alert flood sensor on the relief valve to detect excessive discharges, with an optional add-on connection kit enabling real-time notifications for facility personnel. Its compact design and short lay length simplify installation and maintenance, providing reliable performance up to 175 PSI. Item number F438066.

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Flood Sensor Connection

  • The integrated flood sensor is a passive component until activated with an add-on sensor connection kit.
  • The add-on connection kit enables the flood sensor to relay signals to facility personnel for corrective action.
  • The add-on sensor connection kit is compatible with Building Management Systems (BMS) and cellular network communication.
  • A retrofit sensor connection kit is also available for existing installations.

NOTICE: Watts recommends installing a drain line and the required 994AGK-P air gap for proper drain line installation when installing an air gap. Attach the air gap brackets directly onto the flood sensor.

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Additional Details

The Watts Series 994 Reduced Pressure Zone (RPZ) Assembly Backflow Preventer is an 8 inch lead-free device designed to protect potable water supplies from health hazard cross-connections caused by backpressure or backsiphonage. This model is supplied without shutoff valves and features a compact, modular design for straightforward in-line maintenance.

This assembly incorporates a flood sensor with SentryPlus Alert technology to detect excessive water discharges from the relief valve. When activated with an optional add-on sensor connection kit, the sensor relays a signal for notification of potential flooding, helping to prevent costly damage.

Features

  • Stainless steel construction throughout the body and internal metal parts ensures long-term corrosion resistance and maximum strength.
  • Features a short lay length and lightweight stainless steel body, reducing installation and shipping costs.
  • Bottom-mounted relief valve minimizes clearance requirements, ideal for installations against an outside wall.
  • Patented torsion spring check valves provide maximum flow and low pressure drop for efficient operation.
  • No special tools are required for servicing, simplifying maintenance procedures.
  • Compact construction allows for installation in smaller enclosures.
  • Equipped with a flood sensor on the relief valve for proactive discharge detection.
  • Flood alert feature is activated with an add-on sensor connection kit, compatible with BMS and cellular network communication systems.

NOTICE: An add-on connection kit is required to activate the flood sensor. Without this kit, the flood sensor is a passive component and does not communicate with any other device. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product.

Specifications

Materials

  • Main Valve Body: 300 Series Stainless Steel
  • All Internal Metal Parts: 300 Series Stainless Steel
  • Check Assembly: Noryl®

Performance

  • Maximum Working Pressure: 175 PSI (12.1 bar)
  • Temperature Range: 33°F-110°F (0.5°C-43°C) continuous

Dimensions (8 Inch, without Shutoff Valves)

  • Length (Dimension A): 52 1/2 inches (1334 mm)
  • Weight (without Shutoff Valves): 179 lbs (81 kg)
  • Flange Dimension: In accordance with AWWA Class D

Certificates & Approvals

  • AWWA C511-92
  • ASSE 1013
  • CSA B64.5

FAQs

What is the primary purpose of the Watts Series 994 RPZ assembly?

The primary purpose is to protect potable water supplies from contamination caused by backsiphonage or backpressure from health hazard cross-connections. It ensures the drinking water system remains safe.

Does this 8-inch model include shutoff valves?

No, this specific 994-LF-FS model is designated as "LF" (Less Shutoff) and is assembled without shutoff valves.

How does the flood sensor work, and what is required for its activation?

The integrated flood sensor detects excessive water discharges from the relief valve. To activate its alert capabilities, an add-on sensor connection kit (sold separately) is required, which enables communication with Building Management Systems or cellular networks.

What materials are used in the construction of this backflow preventer?

The main valve body and all internal metal parts are constructed from 300 Series stainless steel for corrosion resistance. The check assembly uses Noryl®.

What are the maximum operating pressure and temperature limits for this device?

This backflow preventer has a maximum working pressure of 175 PSI (12.1 bar) and can operate continuously within a temperature range of 33°F to 110°F (0.5°C to 43°C).

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