The Ames Maxim M200N is a 4-inch lead-free double check valve backflow preventer assembly designed to prevent pollutants from entering potable water supplies. Ideal for non-health hazard applications, such as high-flow fire systems, it features a compact, lightweight 304 stainless steel housing. This assembly includes non-rising stem (NRS) shutoff valves and patented Tri-Link check modules for lowest pressure loss and easy serviceability. Approved for horizontal, vertical, or N pattern installations, it operates up to 175 psi and ensures compliance with national plumbing codes. Item number 0191014.
Help Me Connect
This 4 inch backflow preventer assembly features groove end connections for both the inlet and outlet, allowing for flexible installation and integral pipeline adjustment. It is compatible with grooved piping systems and is designed for use in non-health hazard applications such as fire protection systems.
This Maxim™ 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards such as on high flow fire systems and from other contaminants found at the service line entrance.
Features
Extremely compact design, 70% lighter than traditional designs.
Single housing sleeve access port for unmatched ease of serviceability; no special tools required.
Patented Tri-Link Checks provide lowest pressure loss.
Groove fittings allow integral pipeline adjustment.
Available for horizontal, vertical, or N pattern installations.
Test Cocks: Lead Free* Bronze Body, Ball Valve Type
Pins & Fasteners: 300 Series Stainless Steel
Springs: Stainless Steel
Maximum Operating Pressure: 175 psi (12.06 bar)
Temperature Range: 33°F - 110°F (0.5°C – 43°C)
Lead Content: Wetted surface contains less than 0.25% lead
Certificates & Approvals
ASSE 1015
AWWA C510-97
CSA B64.5
FM Approved
FCCCHR-USC Approved
NSF/ANSI 61-G Certified
UL Classified
FAQs
What is the primary use of the Maxim M200N Double Check Valve Assembly?
It is designed to prevent non-toxic pollutants from entering the potable water supply system due to backpressure or backsiphonage. It is specifically for non-health hazard applications like fire systems.
What materials are used in the construction of this backflow preventer?
The housing and sleeve are made from 304 (Schedule 40) stainless steel. Elastomers include EPDM, Silicone, and Buna 'N', while check components use Noryl® and stainless steel. Test cocks are lead-free bronze.
Can this assembly be installed vertically or horizontally?
Yes, the Maxim M200N is approved for installation in horizontal, vertical, or "N" pattern orientations, providing flexibility for different piping configurations.
What is the maximum operating pressure and temperature?
This assembly can handle a maximum operating pressure of 175 psi (12.06 bar) and operates within a temperature range of 33°F to 110°F (0.5°C to 43°C).
Are special tools required for maintenance or serviceability?
No, the Tri-Link Check modules are designed to be removable and serviceable without the use of special tools, contributing to unmatched ease of serviceability.
