DERINGER 20 4
Part of the Deringer 20/20G Series
Ordering Code: D-4020
UPC: 737733033028
Lead Free: YES
4 IN Stainless Steel Double Check Valve Backflow Preventer Assy, Deringer, Integral Butterfly Shutoffs, Grooved Ends, Dual-Action Check Modules
This 4 inch Ames Deringer(TM) 20 double check valve backflow preventer assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backflow due to backpressure and/or backsiphonage conditions. Deringer 20 features integral Eccentric-Seal(TM) butterfly shutoff valves for a short lay length, integrated tamper switches, and Dual-Action(TM) checks for high performance at low-and high-flow rates. It may be installed under continuous pressure service to protect against both backpressure and backsiphonage. Maximum working pressure is 175psi (12 bar).
Features
- 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
| Specifications | |
|---|---|
| Backflow Preventer Type | Double Check Valve Assembly |
| Body Finish | Stainless Steel |
| Body Material | 304 Stainless Steel |
| Body Pattern | Inline |
| Brand | Ames Fire & Waterworks |
| Buy American Act Compliant | NO |
| Bypass | No |
| Bypass Size | Does Not Apply To Product |
| Cap And Tether | No |
| Disc Material | Silicone |
| EAN | 737733033028 |
| Elbow Fitting | No |
| Hazard Protection Level | Non Health Hazard |
| Hot And Harsh Water | No |
| Hydrant Connection | No |
| Inlet Connection Size | 4 IN |
| Inlet Connection Size-Metric | 101.6 MM |
| Inlet Connection Type | Grooved Joint |
| Inlet Shutoff Valve Type | Gear Operated Butterfly Valve |
| Inlet Thread Type | Does Not Apply To Product |
| Lead Free | YES |
| Maximum Temperature-Fahrenheit | 140 |
| Maximum Working Pressure-BAR | 12.10 |
| Maximum Working Pressure-PSI | 175 |
| Meter Type | Does Not Apply To Product |
| Minimum Temperature - Celsius | 1.00 |
| Minimum Temperature-Fahrenheit | 33 |
| Outlet Connection Size | 4 IN |
| Outlet Connection Type | Grooved Joint |
| Outlet Shutoff Valve Type | Gear Operated Butterfly Valve |
| Outlet Thread Type | Does Not Apply To Product |
| Part Number | D-4020 |
| Polymer Coating | No |
| Pressure Operation | Continuous |
| Protection Type | Backpressure and Backsiphonage |
| Seat Material | Noryl Polymer |
| Series | Deringer 20/20G |
| Strainer | No |
| Technologies | Does Not Apply To Product |
| Tradename | Deringer |
Literature
-
- Brochure - Ames Flow Control For Fire Protection
- Maintenance Manual - Deringer Gear Box Replacement
- Maintenance Manual - Deringer Gear Box Wiring
- Maintenance Manual - Deringer Indicator Flag
- Maintenance Manual - Deringer Tamper Switch
- Maintenance Manual - For Deringer Models 20/30 Only - Sizes 2 1/2-4 IN
- Specification Sheet - Deringer 20
- User Guide - For All Deringer Series Valves