6 DERINGER 20X (DC)

Item Number: D-6020X
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$5,169.52
Limited Stock (4)
Estimated transit time: 2 to 5 Business Days Eligible for Express Shipping

Brand - Deringer
  • Nominal Size: 6 inch
  • Weight: 134.0 lb
  • Body Material: 304 Stainless Steel
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F
  • End Connections: IPS Grooved
  • Prevents non-health hazard backflow and backsiphonage
  • Features Dual-action check modules for optimal flow
  • UL Certified Lead Free

Description

The 6 inch Ames Deringer 20X Low Head Loss double check valve backflow preventer assembly prevents non-health hazard pollutants from entering potable water systems due to backpressure or backsiphonage. Constructed with a 100% 304 stainless steel housing, it offers superior durability and corrosion resistance. Key features include integral shutoff valves, tamper-resistant test cocks, and patented Dual-action check modules for efficient performance at both low and high flow rates. It operates up to 175 psi, is UL certified, and features IPS grooved ends for easy installation. Item number D-6020X.

Help Me Connect

Connections

This 6 inch double check valve assembly features IPS grooved ends for direct connection to steel pipe, compliant with AWWA C606 standards. It includes integral shutoff valves. For alternative installations, flanged adapters (sold separately) are available, designed for connection to ANSI B16.1 Class 125 flanges.

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Additional Details

This 6 inch Ames Deringer™ 20X Low Head Loss double check valve backflow preventer assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions. It is suitable for continuous pressure service.

Features

  • Oversized checks for extreme performance and low head loss
  • Integral shutoff valves designed for indoor or outdoor application
  • Housing constructed from 100% stainless steel
  • Tamper-resistant test cocks
  • Patented Dual-action™ check modules:
    • Poppet action at low flow
    • Swing action at high flow
  • Silicone elastomer check discs
  • Prewired supervisory (alarm) switches for integral tamper detection
  • Available with flanged adapters (sold separately)
  • IPS grooved ends for connection

Design & Performance

  • Uses two independent Dual-action check modules and two integral resiliently seated shutoff valves within a single rigid 304 stainless steel valve housing.
  • Integral shutoff valves include prewired supervisory tamper switches in a weatherproof actuator housing.
  • Assembly test cocks are handle-less and operate through a tamper resistant actuator.
  • Single full access service port and cover with an in-line replaceable elastomer seal.
  • Serviceable without special tools.
  • Approved for both horizontal and vertical applications.
NOTICE: The information contained herein is not intended to replace the full product installation and safety information available or the experience of a trained product installer. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product.

Specifications

General

  • Model: Deringer™ 20X
  • Nominal Size: 6 inch
  • Valve Housing Material: 304 Stainless Steel
  • Valve Cover Material: 304 Stainless Steel
  • Body Material: 304 Stainless Steel
  • Check Disc Material: Silicone (NSF)
  • Check Seat Material: Noryl® Polymer (NSF)
  • O-ring Material: Buna-N (NSF)
  • SOV Disc Material: EPDM/304SS
  • SOV Shaft Material: 304 Stainless Steel
  • SOV Bearing Material: PTFE Fluoropolymer/Bronze
  • Non-Wetted Bolt Material: Grade 8 Zinc Plated
  • Wetted Fastener Material: 18-8 Stainless Steel
  • Check Spring Material: 17-7 Stainless Steel
  • Check Pin Material: 17-7/18-8 Stainless Steel
  • End Connections: IPS Grooved

Pressure & Temperature

  • Working Pressure Range: 10 - 175 psi
  • Maximum Working Pressure: 175 psi
  • Temperature Range: 33°F - 140°F

Dimensions (6 inch model)

  • Overall Length (L): 28.6 inches (727 mm)
  • Height to Top (Ht): 9.6 inches (244 mm)
  • Height to Bottom (Hb): 4.8 inches (122 mm)
  • Diameter of Test Cock (D): 1.0 inch (25 mm)
  • Overall Height (H): 14.4 inches (366 mm)
  • Overall Width (W): 13.8 inches (351 mm)
  • Weight: 134 lbs (61 kg)

Certificates & Approvals

  • AWWA C510-07 Compliant
  • ANSI/NSF/CAN 61 Certified Health Effects
  • UL Certified to ANSI/NSF/CAN 372
  • LEAD FREE
  • FM APPROVED
  • USC APPROVED
  • ASSE 1015

FAQs

What is the primary purpose of the Deringer™ 20X double check valve assembly?

The primary purpose is to prevent non-health hazard pollutants from entering potable water supply systems. It protects against both backpressure and backsiphonage conditions.

What material is the main valve housing constructed from?

The valve housing is constructed entirely of 100% 304 stainless steel, ensuring durability and corrosion resistance for both indoor and outdoor applications.

What type of end connections does this 6-inch assembly have?

This assembly features IPS grooved ends, suitable for connection to steel pipe. Flanged adapters are also available separately for ANSI B16.1 Class 125 flange connections.

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

The maximum working pressure for the Deringer™ 20X is 175 psi. It is designed to operate within a temperature range of 33°F to 140°F.

Does this backflow preventer come with integral shutoff valves and supervisory switches?

Yes, it includes integral resiliently seated shutoff valves designed for indoor or outdoor application, along with prewired supervisory (alarm) switches and tamper-resistant test cocks.

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