6 DERINGER 50GX GPM

Item Number: D-6050GX-GPM
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$7,583.90
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Deringer
  • Size: 6 inch
  • Assembly Type: Reduced Pressure Detector Assembly (RPDA-II)
  • Body Material: 304 Stainless Steel
  • Maximum Working Pressure: 175 PSI
  • Temperature Range: 33°F - 140°F
  • End Connections: Flanged ANSI B16.1 Class 125
  • Bypass Meter: GPM (Gallons Per Minute)
  • Approvals: UL, FM, USC, AWWA C511-07, NSF/ANSI 372

Description

The 6 inch Ames Deringer 50GX Reduced Pressure Detector Assembly (RPDA-II) is designed to protect potable water systems from non-health hazard pollutants and hazardous contaminants caused by backpressure or backsiphonage. This assembly is primarily utilized in fire sprinkler systems to monitor for unauthorized water usage with its integrated GPM meter. Key features include a durable 304 stainless steel body, oversized checks for low head loss, and patented Dual-action™ second checks for reliable performance across varying flow rates. It includes resiliently seated OS&Y gate valves, prewired supervisory switches, and a flood sensor with SentryPlus Alert® technology for discharge detection. The unit is UL Listed, FM Approved, and AWWA C511-07 compliant.

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System Connection

  • The 6 inch Deringer 50GX RPDA-II connects to the pipeline via its flanged ends. These flanges conform to ANSI B16.1 Class 125 standards, requiring corresponding flanged connections on the piping system.
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Additional Details

The 6 inch Ames Deringer™ 50GX Reduced Pressure Detector Assembly (RPDA-II) is engineered to prevent hazardous contaminants and non-health hazard pollutants from entering a potable water supply system. It is primarily used on fire sprinkler systems to monitor for unauthorized water usage, protecting against both backpressure and backsiphonage conditions.

Key Features

  • Features oversized checks and an extra large body for low head loss and extreme performance.
  • Patented Dual-action™ second check module operates as "poppet style" for low flow and "swing style" for high flow.
  • Includes a Lead Free bronze bypass assembly with a GPM meter for monitoring water usage.
  • Equipped with resiliently seated inline OS&Y gate valves for shutoff with prewired supervisory switches.
  • Stainless steel body housing ensures durability and longevity.
  • A flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
  • Tamper-resistant test cocks for reliable maintenance checks.
  • Flexible groove coupling UL/FM connections between body and gate valves.
  • The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.

Always thoroughly read all installation instructions and product safety information before beginning the installation of this product.

Specifications

General

  • Model: 50GX
  • Size: 6 inch
  • Assembly Type: Reduced Pressure Detector Assembly (RPDA-II)
  • Primary Use: Backpressure and backsiphonage prevention, fire sprinkler systems
  • Operating Temperature Range: 33°F - 140°F
  • Maximum Working Pressure: 175 PSI

Materials

  • Valve Housing: 304 Stainless Steel
  • Valve Cover: 304 Stainless Steel
  • SOV Disks: EPDM/304SS
  • SOV Shafts: 304 Stainless Steel
  • Bypass Spring: 302 Stainless Steel
  • RV Spring: 302 Stainless Steel
  • SOV Bearings: Teflon® fluoropolymer/Bronze
  • Non-wetted Bolts: Grade 8 Zinc Plated
  • Check Disks: Silicone (NSF)
  • Wetted Fasteners: 18-8 Stainless Steel
  • Bypass Components: Lead Free Bronze
  • RV Housing: 304 Stainless Steel
  • Check Springs: 17-7 Stainless Steel
  • Check Pins: 17-7/18-8 Stainless Steel
  • Check Seats: Noryl® Polymer (NSF)
  • O-rings: Buna-N (NSF)
  • Bypass Internals: ABS Polymer (NSF)
  • RV Hose: Braided Stainless Steel Wire

Connections

  • End Connections: Flanged ANSI B16.1 Class 125
  • Couplings: Flexible groove coupling UL/FM (between body and gate valves)

Dimensions & Weight (6 inch model)

  • Height (Ht): 30.9 inches (784 mm)
  • Height (Hb): 10.5 inches (266 mm)
  • Total Height (Ht+Hb): 41.3 inches (1050 mm)
  • Length (L): 39.9 inches (1014 mm)
  • Width (W): 15.1 inches (384 mm)
  • Weight: 338 lbs (153 kg)

Certificates & Approvals

  • AWWA C511-07 Compliant
  • NSF/ANSI 372
  • UL CERTIFIED
  • FM APPROVED
  • USC APPROVED
  • LEAD FREE (Wetted surface contains <0.25% lead by weight)

FAQs

What is the primary purpose of the Deringer 50GX RPDA-II?

The Deringer 50GX RPDA-II prevents non-health hazard pollutants and hazardous contaminants from entering a potable water supply system due to backpressure or backsiphonage conditions. It is also used in fire sprinkler systems to monitor for unauthorized water usage.

What are the main connection types for this 6 inch assembly?

This 6 inch Deringer 50GX assembly features flanged ends that conform to ANSI B16.1 Class 125 for connection to the main pipeline. Additionally, it utilizes flexible groove couplings (UL/FM) between the body and gate valves for internal assembly.

What is the maximum operating pressure and temperature range for this device?

The Deringer 50GX RPDA-II has a maximum working pressure of 175 PSI and operates efficiently within a temperature range of 33°F to 140°F.

Does this backflow preventer come with a water meter?

Yes, the Deringer 50GX Reduced Pressure Detector Assembly includes a bypass assembly with a GPM (Gallons Per Minute) meter to monitor water usage, particularly relevant for fire sprinkler systems.

What materials are used in the construction of the main components?

The valve housing and cover are constructed from 304 Stainless Steel, ensuring durability and corrosion resistance. Other components like check discs are Silicone (NSF), and bypass components are Lead Free Bronze.

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