10 M300-OSY-GPM
Item Number: 0191043Brand - Ames
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- Product Type: Double Check Detector Backflow Preventer Assembly
- Weight: 936.0 lb
- Size: 10 inch
- Body Material: Stainless Steel
- Shutoff Valves: OSY Resilient Seated Gate Valves
- Check Valves: Tri-link, Replaceable Disc Rubber
- Maximum Working Pressure: 175 PSI
- Includes: Gallon per Minute (GPM) Meter
- Installation: Horizontal or Vertical
Description
Description
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This backflow preventer assembly is approved for either horizontal or vertical installation, provided the installation adheres to the direction of the flow arrow on the assembly.
It features outside stem and yoke (OSY) resilient seated gate valves for shutoff on both the inlet and outlet, making it compatible with standard OSY valve connections.

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Additional Details
The Ames Fire & Waterworks Maxim™ 10 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of non-potable water and fire protection substances into the potable water supply.
It is ideal for protecting cross-connections identified as non-health hazards, such as those found on fire sprinkler systems and at service line entrances, preventing contamination due to backsiphonage or backpressure.
Construction & Features
- Features a stainless steel single housing with an access sleeve for easy maintenance and long-term corrosion protection.
- Includes tri-link check valves which provide the lowest pressure loss and feature replaceable check disc rubber.
- Furnished with outside stem and yoke (OSY) resilient seated gate valves for shutoff.
- Comes with a gallon per minute meter to detect underground leaks and unauthorized water use.
- Equipped with four test cocks for verification.
- Compact modular design approved for horizontal or vertical installation according to the direction of flow.
Specifications
- Product Type: Double Check Detector Backflow Preventer Assembly
- Model Series: Maxim
- Nominal Size: 10 inch
- Body Material: Stainless Steel
- Shutoff Valves: Outside Stem and Yoke (OSY) Resilient Seated Gate Valves
- Check Valves: Tri-link
- Meter: Gallons per Minute (GPM) Meter
- Maximum Working Pressure: 175 psi (12.06 bar)
- Installation Orientation: Horizontal or Vertical
- Test Cocks: Four
- Housing: Single Housing with Access Sleeve
- Check Disc Material: Replaceable Rubber
Certificates & Approvals