10 M500-OSY-GPM

Item Number: 0191121
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$50,208.00
Special Order
When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 10 Inch
  • Weight: 998.0 lb
  • Housing Material: 304 (Schedule 40) Stainless Steel
  • Shutoff Valves: OSY (Outside Stem and Yoke) Gate Valves
  • Maximum Operating Pressure: 175 PSI
  • Temperature Range: 33°F - 110°F
  • Includes: Gallon per minute meter
  • Certifications: ASSE 1047, CSA B64.4, UL, FM, AWWA C511-97
  • Design: Extremely compact and 70% lighter than traditional models

Description

The 10-inch Maxim M500 Reduced Pressure Detector Backflow Preventer Assembly protects potable water supplies from cross-contamination in non-potable applications like fire sprinkler systems, irrigation, or industrial processing. It features a durable 304 (Schedule 40) stainless steel housing, OSY shutoff valves, and a gallon-per-minute meter to detect unauthorized water use or leaks. Its compact, lightweight design ensures ease of installation and serviceability, while patented Link Checks provide low pressure loss. This assembly is approved by ASSE 1047, CSA B64.4, UL, and FM, with a maximum operating pressure of 175 PSI.

Help Me Connect

Connections

  • This 10 inch Maxim™ M500 assembly features OSY (Outside Stem and Yoke) resilient seated gate valves. These gate valves typically connect to the pipeline using flanged connections, as depicted in the M500 OSY configuration.
  • Internally, the main housing and sleeve are connected using groove end connections for easy assembly, disassembly, and integral pipeline adjustment.

Installation Orientation

  • The assembly is available for both horizontal and N pattern installations.
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Additional Details

The Maxim™ Series M500 10 inch Reduced Pressure Detector Backflow Preventer Assembly is designed to protect drinking water supplies from dangerous cross-connections. It prevents the reverse flow of non-potable substances from fire protection systems, irrigation, or industrial processing into the potable water supply due to backsiphonage or backpressure.

This assembly also monitors unauthorized water use or underground leaks within the fire protection system, furnished with a gallon per minute meter.

WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Consult your local water authority, building, and plumbing codes before installation.

Design & Construction

  • Features an extremely compact design, up to 70% lighter than traditional designs.
  • The entire housing and sleeve are constructed from 304 (Schedule 40) stainless steel pipe for durability.
  • Utilizes groove fittings that allow for integral pipeline adjustment and ease of installation.
  • Includes two independent Link Check modules with patented design for lowest pressure loss.
  • Reversible elastomer discs within the Link Checks ensure drip-tight closure against reverse flow.
  • Features OSY (Outside Stem and Yoke) resilient seated gate valves for reliable shutoff.
  • Equipped with a corrosive-resistant bottom mounted pressure relief valve and multiple test cocks.
  • The bypass assembly includes a meter registering gallon or cubic measurements to detect leaks.
  • Designed for unmatched ease of serviceability with a single access cover.
  • Suitable for horizontal or N pattern installations.

Included Components

  • Complete Maxim™ M500 Reduced Pressure Detector Backflow Preventer Assembly
  • OSY Shutoff Valves
  • Link Check Modules
  • Gallons/Minute Meter
  • Test Cocks
  • Pressure Relief Valve

Specifications

  • Product Series: Maxim™ M500
  • Size: 10 Inch
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Shutoff Valves: OSY (Outside Stem and Yoke) Resilient Seated Gate Valves
  • Check Modules: Link Check with Torsion Springs, Noryl®, Stainless Steel
  • Check Discs: Reversible Silicone or EPDMr
  • Elastomers: EPDM, Silicone, Buna 'N'
  • Test Cocks: Lead Free* Bronze Body
  • Pins & Fasteners: 300 Series Stainless Steel
  • Springs: Stainless Steel
  • Maximum Working Pressure: 175 PSI (12.06 bar)
  • Temperature Range: 33°F - 110°F (5°C - 43°C)

Certificates & Approvals

  • ASSE 1047
  • CSA B64.4
  • UL Listed (for OSY models)
  • FM Approved (for OSY models)
  • AWWA C511-97

FAQs

What is the primary function of the Maxim M500 Reduced Pressure Detector Backflow Preventer?

Its main purpose is to protect drinking water from contamination caused by dangerous cross-connections, preventing the reverse flow of non-potable substances from fire lines, irrigation, or industrial processing due to backsiphonage or backpressure.

What materials are primarily used in the construction of this backflow preventer?

The housing and sleeve are constructed from durable 304 (Schedule 40) stainless steel. Other components include Noryl®, stainless steel, reversible silicone or EPDM check discs, and lead-free bronze test cocks.

What type of shutoff valves are included with this 10-inch M500 assembly?

This particular 10-inch Maxim M500 assembly is equipped with OSY (Outside Stem and Yoke) resilient seated gate valves, which are UL and FM approved.

How does this backflow preventer help detect leaks or unauthorized water use?

The assembly includes a bypass with a meter that registers water flow in gallons or cubic measurements. This feature allows for the detection of underground leaks or any unauthorized water usage from the fire protection system.

What certifications and approvals does this product hold?

The Maxim M500 Reduced Pressure Detector Backflow Preventer is approved by ASSE 1047, CSA B64.4, UL, FM, and AWWA C511-97, ensuring it meets industry standards for performance and safety.

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