4 M400N-BFG

Item Number: 0191104
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$12,985.50
Special Order
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 Assembly
  • Weight: 300.0 lb
  • Nominal Size: 4 inch
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Shutoff Valves: Grooved Gear Operated Butterfly with Tamper Switch
  • Check Modules: Link Check, Torsion Spring
  • Installation Pattern: Horizontal N Pattern
  • Features: Extremely compact design
  • Benefit: 70 percent lighter than traditional designs

Description

This Maxim™ 4 inch reduced pressure zone backflow preventer assembly safeguards potable water systems from contamination due to backsiphonage and backpressure. Constructed with a durable 304 (Schedule 40) stainless steel housing and sleeve, it effectively prevents the reverse flow of non-potable water and fire protection substances. Its extremely compact and 70 percent lighter design, along with grooved gear operated butterfly shutoff valves and torsion spring check modules, ensures easy installation, serviceability, and reliable drip-tight performance for continuous pressure piping applications in a horizontal N pattern.

Help Me Connect

This 4 inch Maxim™ Reduced Pressure Zone Backflow Preventer Assembly is designed for horizontal N pattern installation. It features groove couplings for easy installation and pipe alignment to your existing system. When installing, ensure adequate clearance around the valve for inspection, testing, and servicing. A minimum 12-inch clearance is required between the relief valve of the assembly and the floor or grade.

The drain line should be protected from freezing, and normal discharge can be accommodated by using an Ames air gap fitting and a fabricated indirect waste line. Floor drains of the same size as the assembly should be provided for excessive discharge.

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Additional Details

This Maxim™ 4 inch reduced pressure zone backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and non-potable quality water from being pumped or siphoned into the potable water supply. It protects against backsiphonage and backpressure, making it suitable for continuous pressure piping applications and at cross-connections identified as health hazards.

Key Components

  • 304 (Schedule 40) stainless steel housing and sleeve
  • Quick access sleeve
  • Torsion spring check modules
  • Grooved gear operated butterfly valves with tamper switch
  • Test cocks
  • Bottom mounted stainless steel relief valve

Features

  • Extremely compact design, allowing for smaller enclosures
  • Approximately 70 percent lighter than traditional designs
  • Replaceable check disc rubber
  • Torsion spring check modules for ease of serviceability
  • Groove couplings for easy installation and pipe alignment
  • Drip tight shutoff valves
  • Approved for horizontal N pattern installation

It is crucial for an experienced product installer to read all installation instructions and product safety information thoroughly before beginning the installation of this product.

Specifications

  • Product Type: Reduced Pressure Zone Backflow Preventer Assembly
  • Brand: Maxim
  • Nominal Size: 4 inch
  • Housing & Sleeve Material: 304 (Schedule 40) Stainless Steel
  • Check Modules: Link Check, Torsion Spring
  • Shutoff Valves: Grooved Gear Operated Butterfly with Tamper Switch
  • Relief Valve: Bottom Mounted Stainless Steel
  • Installation Pattern: N Pattern (Horizontal)
  • Assembly Components: Stainless steel body, quick access sleeve, torsion spring check modules, grooved gear operated butterfly valves with tamper switch, test cocks, bottom mounted pressure relief valve

FAQs

What is the primary function of this backflow preventer?

This backflow preventer is designed to prevent the reverse flow of non-potable water and fire protection substances into the potable water supply, protecting against both backsiphonage and backpressure.

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

The housing and sleeve of this assembly are constructed from 304 (Schedule 40) stainless steel, offering durability and corrosion resistance.

What type of shutoff valves are included with this assembly?

The assembly features grooved gear operated butterfly shutoff valves, which include a tamper switch for added security and monitoring.

Is this backflow preventer assembly suitable for horizontal or vertical installation?

This assembly is specifically approved for horizontal N pattern installation, as long as it is installed in accordance with the direction of the flow arrow.

What are the benefits of the design compared to traditional models?

This backflow preventer features an extremely compact design, allowing for smaller enclosures, and is approximately 70 percent lighter than traditional designs, simplifying handling and installation.

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