6 M400Z-NRS

Item Number: 0191487
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$18,262.50
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Size: 6 inch
  • Product Type: Reduced Pressure Zone Backflow Preventer
  • Shutoff Valves: Non-Rising Stem (NRS)
  • Body Material: 304 (Schedule 40) Stainless Steel
  • Design: Extremely compact, Z Pattern installation
  • Weight: 70% lighter than traditional designs
  • Couplings: Groove for easy installation
  • Checks: Torsion spring, Link Check modules for low pressure loss

Description

The Ames Maxim 6 inch lead-free reduced pressure zone backflow preventer assembly prevents reverse flow of fire protection substances and non-potable water into potable water supplies. Featuring a 304 stainless steel body with NRS shutoff valves and link check modules, it's designed for horizontal Z pattern installation. Its compact and lightweight design (70% lighter than traditional units) allows for smaller enclosures and easier handling. Ideal for continuous pressure piping applications and protecting against health hazards at cross-connections, this assembly ensures reliable backflow prevention while meeting national plumbing codes. Item number 0191487.

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Installation & Connections

  • This 6 inch reduced pressure zone backflow preventer assembly utilizes groove couplings for straightforward installation and precise pipe alignment.
  • It is approved for horizontal Z pattern installation, ensuring proper function when installed with the flow arrow direction.
  • A 12-inch minimum clearance is recommended between the lower portion of the assembly and the floor or grade to facilitate adequate inspection, testing, and servicing.
  • The valve should be protected from freezing.
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Additional Details

The Ames Maxim 6 inch lead-free 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, protecting against backsiphonage and backpressure.

This assembly is ideal for continuous pressure piping applications and safeguarding against contaminants at cross-connections and service line entrances.

Key Features

  • Features a 304 (Schedule 40) stainless steel housing and sleeve for durability.
  • Extremely compact design, allowing for smaller enclosures and offering a 70 percent weight reduction compared to traditional designs.
  • Equipped with torsion spring check modules for ease of serviceability and link check modules to ensure the lowest pressure loss.
  • Includes drip-tight shutoff valves with a non-rising stem (NRS) design.
  • Incorporates a bottom-mounted stainless steel relief valve.
  • Replaceable check disc rubber for extended service life.
  • Groove couplings facilitate easy installation and pipe alignment.

Installation Notes

  • Approved for horizontal Z pattern installation, provided the assembly is installed in accordance with the direction of the flow arrow.

NOTICE: The information provided is not a substitute for complete product installation and safety instructions or the experience of a trained installer. Always read all product safety information before installation.

Specifications

  • Size: 6 inch
  • Product Type: Reduced Pressure Zone Backflow Preventer Assembly
  • Series: Maxim
  • Shutoff Valves: NRS (Non-Rising Stem)
  • Body Material: 304 (Schedule 40) Stainless Steel
  • Check Modules: Torsion Spring, Link Check
  • Relief Valve: Bottom Mounted, Stainless Steel
  • Installation Pattern: Horizontal Z Pattern
  • Couplings: Groove
  • Check Disc: Replaceable Rubber

FAQs

What is the primary purpose of the Ames Maxim 6 inch backflow preventer?

Its primary purpose is to prevent the reverse flow of non-potable water, including fire protection substances, from entering the potable water supply due to backsiphonage or backpressure.

What material is the housing of this backflow preventer made from?

The housing and sleeve are constructed from durable 304 (Schedule 40) stainless steel, offering excellent corrosion resistance and longevity.

Can this assembly be installed in any orientation?

No, this specific model is approved for horizontal Z pattern installation only. It is critical to install it in accordance with the direction of the flow arrow to ensure proper operation.

What type of shutoff valves does this backflow preventer use?

It uses resilient seated gate valves with a non-rising stem (NRS) design, which are also described as drip-tight.

What are the benefits of the link check modules?

The link check modules are designed to provide the lowest possible pressure loss through the assembly, contributing to system efficiency, and torsion spring check modules make servicing easier.

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