Deringer™ 20X 4 in. 304 Stainless Steel IPS Grooved Backflow Preventer

Part #AD4020X  |  Item #8693551  |  Manufacturer Part #D-4020X

Valve Size:

4 in

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Product Details

  • Integral shutoffs for shorter lay length and lightweight construction
  • Dual-action check module for low-and high-flow performance
  • Prewired supervisory switches
  • Tamper-resistant test cocks


ANSI Specifications: [ANSI 372, ANSI B16.1 Class 125]

ASSE Standards: ASSE 1015

AWWA Specifications: [AWWA C-510 2007, AWWA C-606]

Collection: Deringer™ 20X

End Connection 1: IPS Grooved

End Connection 2: IPS Grooved

End Connections: IPS Grooved

FM Approved: Yes

Height: 12 in

High Pressure: 175

IAPMO Listed: No

Installation Type: [Horizontal Mount, Vertical Mount]

Length: 23-3/5 in

Low Pressure: 10

Material: [Bronze, Plastic, Rubber, Stainless Steel]

Material Type: [17-7, 18-8, Buna-N, EPDM, PTFE]

NSF Certified: Yes

NSF Specifications: NSF 372

Number of Handles: Two Handle

Recommended Valve Application: [Fire Protection, Irrigation, Plumbing, Waterworks]

Temperature Range: 33 to 140 Deg F

UL Listed: Yes

Valve Body Material: 304 Stainless Steel

Valve Body Style: Inline

Valve Disc Material: Silicone

Valve Operator: Wheel Handle

Valve Port Opening: Full Port

Valve Seat Material: [Noryl®, Polymer]

Valve Size: 4 in

Valve Type: Double Check Valve

Weight: 69

Width: 12-1/5 in