6 M400-NRS

Item Number: 0191093
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$16,413.74
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Weight: 481.0 lb
  • Nominal Size: 6 inch
  • Housing Material: 304 Stainless Steel (Schedule 40)
  • Shutoff Valves: NRS Gate Valves
  • Check Modules: Torsion Spring, Link Check
  • Relief Valve: Bottom Mounted Stainless Steel
  • Design: Compact, 70% lighter than traditional models
  • Installation: Horizontal approved, Groove couplings

Description

This 6 inch Maxim Reduced Pressure Zone (RPZ) backflow preventer assembly with NRS shutoff valves effectively prevents contamination of potable water supplies. Constructed with a 304 Schedule 40 stainless steel housing, it offers exceptional durability. Its compact, 70% lighter design simplifies installation in various spaces. The assembly features torsion spring and link check modules for easy maintenance and low pressure loss, along with a bottom-mounted stainless steel relief valve and replaceable check disc rubber. Approved for horizontal installation, it is ideal for continuous pressure piping and health hazard cross-connection protection. Item number 0191093.

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Installation Considerations

  • This 6 inch Maxim™ backflow preventer assembly is approved for horizontal installation, provided it is installed in accordance with the direction of the flow arrow.
  • Features groove couplings for straightforward installation and simplified pipe alignment.
  • A minimum 12 inch clearance is required between the lower portion of the assembly and the floor or grade to allow for inspection, testing, and servicing.
  • The valve assembly should be protected from freezing.
  • Normal discharge and nuisance spitting can be accommodated using an Ames air gap fitting and a fabricated indirect waste line; floor drains of the same size as the discharge must be provided in case of excessive discharge.
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Additional Details

This Maxim™ 6 inch reduced pressure zone backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards.

This assembly features an extremely compact and lighter-than-traditional design, approved for horizontal installation. It ensures reliable backflow prevention in accordance with national plumbing codes and water authority requirements.

Construction & Features

  • Features a 304 (Schedule 40) stainless steel housing and sleeve for durability.
  • Equipped with resilient seated gate valves with a non-rising stem (NRS).
  • Includes torsion spring check modules and Link check modules for ease of serviceability and lowest pressure loss.
  • The check disc rubber is replaceable for extended lifespan.
  • Features a bottom mounted stainless steel relief valve and test cocks.
  • Groove couplings ensure easy installation and pipe alignment.
  • Offers a 70 percent lighter design compared to traditional assemblies.
  • Provides drip tight shutoff valves for secure operation.

NOTICE: The information contained herein is not intended to replace the full product installation and safety information or the experience of a trained product installer. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this product.

Specifications

  • Product Type: Reduced Pressure Zone Backflow Preventer Assembly
  • Brand: Maxim™
  • Nominal Size: 6 inch
  • Housing Material: 304 (Schedule 40) Stainless Steel
  • Shutoff Valve Type: NRS Gate Valves (Non-Rising Stem)
  • Check Module Type: Torsion Spring, Link Check
  • Check Disc Material: Replaceable Rubber
  • Relief Valve: Bottom Mounted, Stainless Steel
  • Installation Orientation: Approved for Horizontal
  • Coupling Type: Groove

FAQs

What is the primary purpose of this backflow preventer assembly?

This Maxim™ 6 inch Reduced Pressure Zone (RPZ) backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and non-potable water into the potable water supply due to backsiphonage or backpressure, in compliance with national plumbing codes.

What material is the housing made from?

The housing and sleeve of this backflow preventer assembly are constructed from durable 304 (Schedule 40) stainless steel.

What type of shutoff valves are included with this assembly?

This assembly is equipped with resilient seated gate valves featuring a Non-Rising Stem (NRS) design.

Can this backflow preventer assembly be installed horizontally?

Yes, this Maxim™ RPZ assembly is approved for horizontal installation, provided it is installed correctly according to the flow arrow direction.

What are the benefits of its compact design?

The extremely compact and 70% lighter design of this assembly allows for the use of smaller enclosures and facilitates easier handling and installation compared to traditional backflow preventers.

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