The 6 inch AMES 2000SS-DNRS Double Check Valve Backflow Preventer Assembly with Domestic NRS Shutoffs prevents polluted water from entering potable systems. Ideal for non-health hazard installations, this lead-free device protects against backsiphonage and backpressure. It features a lightweight, corrosion-resistant 300 Series stainless steel body, modular construction for easy maintenance, and provides low head loss. Approved for horizontal or vertical installation, it includes two independently operated cam-check valves and resilient seated gate valves. The maximum working pressure is 175 psi.
This 6 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of non-potable water into the potable water supply.
It is ideal for continuous pressure service and protection at cross-connections identified as non-health hazards, effectively preventing contamination due to backsiphonage and/or backpressure.
Key Features
Features a stainless steel body, which is half the weight of competitive designs, reducing installation and shipping costs while providing long-term corrosion protection and maximum strength.
Equipped with domestic non-rising stem (NRS) resilient seated gate valves.
The Cam-Check Assembly provides low head loss.
Short lay length is ideally suited for retrofit installations and compact construction allows for smaller vaults and enclosures.
Designed for non-health hazard applications in accordance with national plumbing codes and water authority requirements.
Modular design with a single top access cover and two-bolt grooved style coupling for ease of maintenance.
Check Mechanism: Two independently operated spring loaded cam-check valves
Maximum Working Pressure: 175 psi (12.06 bar)
Temperature Range: 33°F - 110°F (5°C - 43°C)
Lead Free: Yes (Wetted surface contains less than 0.25% lead by weight)
Installation Position: Horizontal or Vertical "flow up" (ASSE Only)
Flange Dimension: In accordance with AWWA Class D
Certificates & Approvals
AWWA C510-92
CSA B64.5
FAQs
What is the primary function of the 6 inch 2000SS-DNRS backflow preventer?
Its primary function is to prevent the reverse flow of non-potable water, often referred to as polluted water, from entering the potable (drinkable) water supply system.
What type of shutoff valves does this assembly include?
This assembly includes domestic non-rising stem (NRS) resilient seated gate valves, which are used to isolate the device for maintenance or testing.
Is this backflow preventer suitable for both horizontal and vertical installations?
Yes, this backflow preventer assembly is approved for installation in both horizontal and vertical "flow up" positions, as per ASSE requirements.
What material is the main body of the 2000SS-DNRS backflow preventer made from?
The main valve body and all internal metal parts are constructed from durable 300 Series stainless steel, providing excellent corrosion resistance and strength.
What is the maximum operating pressure and temperature range for this device?
This backflow preventer has a maximum working pressure of 175 psi (12.06 bar) and operates within a temperature range of 33°F to 110°F (5°C to 43°C).
