Ames 1 - 1 1/2" 4000B-AG Air Gap Drain Fitting
Item Number: 0691853
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$128.25
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Estimated transit time: 2 to 5 Business Days
Brand - Ames
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- Series Compatibility: 1" - 1 1/2" 4000B/LF4000B
- Weight: 10.9 lb
- Primary Function: Collects relief valve discharge
- Feature: Nozzle design reduces side spray
- Certification: ANSI/ASME A112.1.2
- Dimension A: 3 1/4 inches
- Dimension B: 4 7/8 inches
- Dimension C: 1 inch
- Weight: 1.50 lbs
Description
Description
The Ames 1" - 1 1/2" 4000B-AG Air Gap Drain Fitting is a factory replacement part designed to manage discharge from the relief valves of 1" to 1 1/2" Ames 4000B Series Reduced Pressure Zone (RPZ) backflow assemblies. It effectively funnels water from minor check valve fouling or line pressure fluctuations into a drain, preventing water damage. The fitting's nozzle design reduces side spray, ensuring efficient discharge containment. It conforms to ANSI/ASME A112.1.2 installation requirements.
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Compatibility
- Designed to fit 1" to 1 1/2" Ames 4000B Series Reduced Pressure Zone (RPZ) backflow assemblies.
Installation
This air gap drain fitting attaches to the relief port on a Reduced Pressure Zone (RPZ) backflow device. It funnels any discharge into a drain, ensuring water is directed to a safe place away from the assembly.

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Additional Details
This Ames 1" - 1 1/2" 4000B-AG Air Gap Drain Fitting is designed to collect water discharged by the relief valve on Reduced Pressure Zone (RPZ) assemblies. It channels minor relief valve discharges, caused by check valve fouling or line pressure fluctuations, safely into a drain.
Features
- Designed for use with 1" to 1 1/2" Ames 4000B Series Reduced Pressure Zone backflow assemblies
- Serves as a factory replacement part
- Funnels minor relief valve discharges into drains to prevent water damage
- Conforms to air gap installation requirements
- Features a nozzle design that directs flow into the funnel, thereby reducing side spray
Specifications
- Series Compatibility: 1", 1 1/4", 1 1/2" 4000B/LF4000B
- Dimension A: 3 1/4 inches (83 mm)
- Dimension B: 4 7/8 inches (124 mm)
- Dimension C: 1 inch (25 mm)
- Weight: 1.50 lbs (0.68 kg)
Certificates & Approvals
- ANSI/ASME A112.1.2
FAQs
What is the primary function of this Ames air gap drain fitting?
This air gap drain fitting is designed to collect water that is discharged by the relief valve of a Reduced Pressure Zone (RPZ) assembly, directing it safely to a drain and preventing uncontrolled spray.
Which Ames backflow preventer series is this air gap compatible with?
This air gap drain fitting is specifically designed for use with Ames 1", 1 1/4", and 1 1/2" 4000B Series Reduced Pressure Zone (RPZ) backflow assemblies.
What are the key dimensions of this air gap drain fitting?
The fitting has a Dimension A of 3 1/4 inches (83 mm), Dimension B of 4 7/8 inches (124 mm), and Dimension C of 1 inch (25 mm).
What standard does this air gap drain conform to for installation?
This air gap drain conforms to the ANSI/ASME A112.1.2 standard for air gap installation requirements.
Does this air gap drain help in reducing water spray during discharge?
Yes, it features a specialized nozzle design that directs the flow into the funnel, effectively reducing side spray and ensuring contained discharge.