1/2 4000B

Item Number: 0436090
1 1
$679.13
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Ames
  • Nominal Size: 1/2 inch
  • Body Material: Bronze
  • Maximum Supply Pressure: 175 PSI
  • Maximum Water Temperature: 180°F
  • Quarter Turn Ball Valve Shutoffs with Tee Handles
  • NPT End Connections
  • Single Access Cover for Easy Maintenance
  • Compact, Space Saving Design

Description

The AMES 1/2 inch 4000B Reduced Pressure Zone Backflow Preventer Assembly is designed to protect potable water supplies from pollution caused by backsiphonage and backpressure. Featuring a durable bronze body, this assembly includes quarter-turn ball valve shutoffs with tee handles and NPT end connections. Its modular design allows for easy maintenance through a single access cover, requiring no special tools. With a maximum operating pressure of 175 PSI and temperature of 180°F, it is suitable for irrigation, fire line, and industrial processing applications. It provides a compact, space-saving solution with large body passages for low pressure drop.

Help Me Connect

The AMES 4000B Reduced Pressure Zone Backflow Preventer is furnished with standard NPT (National Pipe Taper) end connections, allowing for direct threaded installation into your plumbing system. For alternative connection needs, optional bronze union inlet and outlet connections are available on models specified with prefix "U". This 1/2 inch assembly is designed to integrate into continuous pressure piping applications to protect potable water supplies from potential cross-contamination.

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Additional Details

This 1/2 inch reduced pressure zone backflow preventer assembly protects drinking water supplies from dangerous cross-connections, preventing polluted water from entering the potable water supply due to backsiphonage or backpressure.

It is designed for continuous pressure piping applications and cross-connections identified as health hazards, ideal for uses like irrigation, fire lines, or industrial processing. Its compact modular design simplifies maintenance and allows for in-line repairs without special tools.

Construction & Features

  • Features a durable bronze body construction for long-lasting performance.
  • Incorporates two in-line, independent check valves with captured springs and replaceable polymer check seats.
  • An internal relief valve is included for reduced installation clearances.
  • Includes quarter turn ball valve shutoffs with tee handles for easy operation.
  • Screwdriver-slotted ball valve test cocks are top-mounted for convenience.
  • Offers a single access cover and modular check construction for ease of maintenance and immediate access to all internal components.
  • Designed with large body passages to provide low pressure drop, ensuring efficient flow.
  • Compact, space-saving design requires no special tools for servicing.

Installation must comply with local water authority, building, and plumbing codes. 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.

Specifications

  • Product Type: Reduced Pressure Zone Assembly
  • Nominal Size: 1/2 inch (15mm)
  • Body Material: Bronze
  • Disc Material: Silicone rubber
  • Check Seat Material: Replaceable polymer
  • Relief Valve Seat Material: Removable stainless steel
  • Cover Bolts: Stainless steel
  • Shutoff Type: Quarter turn ball valves with tee handles
  • End Connections: NPT
  • Maximum Supply Pressure: 175 PSI (12.06 bar)
  • Maximum Water Temperature: 180°F (75°C) continuous

Dimensions (Approximate)

  • Overall Length (A): 10 inch (250 mm)
  • Height (B): 4 5/8 inch (117 mm)
  • Width (C): 3 3/8 inch (86 mm)
  • Depth (D): 1 1/4 inch (32 mm)
  • Ball Valve Shutoff Length (L): 5 1/2 inch (140 mm)
  • Assembly Weight: 4.50 lbs (2.0 kg)

Certificates & Approvals

  • AWWA C511-92
  • USC Manual 8th Edition
  • IAPMO File No. 1563
  • ASSE Std. 1013
  • CSA B64.4
  • UPC
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at University of Southern California (Models QT, U)

FAQs

What is the primary purpose of this 1/2 inch backflow preventer assembly?

Its primary purpose is to protect drinking water supplies by preventing polluted water from flowing back into the potable system due to backsiphonage or backpressure.

What type of connections does this backflow preventer use?

This 1/2 inch assembly is standardly furnished with NPT (National Pipe Taper) end connections. Optional bronze union inlet and outlet connections are available on "U" prefix models.

What is the maximum operating pressure and temperature for this device?

This backflow preventer is suitable for supply pressures up to 175 PSI (12.06 bar) and water temperatures up to 180°F (75°C) continuously.

What materials are used in the construction of the 4000B assembly?

The assembly features a durable bronze body, silicone rubber disc material for the checks and relief valve, replaceable polymer check seats, and removable stainless steel relief valve seat.

Is special tooling required for maintenance or repair?

No, this backflow preventer is designed for easy maintenance with a single access cover and modular check construction, requiring no special tools for servicing. Replaceable seats ensure economical repair.

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