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ZURN WILKINS Air Gap Fitting, AG-9, 4 in NPT, Cast Iron, for 475V Series - Air Gaps
ZURN WILKINSAir Gaps

ZURN WILKINS Air Gap Fitting, AG-9, 4 in NPT, Cast Iron, for 475V Series

The ZURN WILKINS Air Gap Fitting (SKU AG-9, MPN AG-9) is a cast-iron air gap fitting with a 4-inch NPT connection on side 1. It is designed for use with the 475V series Pressure Principle Backflow Preventer.

SKU 3G-OTH-444553

Also listed as: AG9 · AG 9

Brand
ZURN WILKINS
Item
Air Gap Fitting, AG-9, 4 in NPT, Cast Iron, for 475V Series
Part Number
AG-9
Category
Air Gaps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ZURN WILKINS
Manufacturer Part Number
AG-9
Type
475V, Cast Iron, 4 in Connection Size - Side 1, NPT
Product Type
Air Gap Fitting
Compatible with Series
475V
Compatible Product Type
Pressure Principle Backflow Preventer

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ZURN WILKINS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ZURN WILKINS Air Gap Fitting (SKU AG-9, MPN AG-9) is a cast-iron air gap fitting with a 4-inch NPT connection on side 1. It is designed for use with the 475V series Pressure Principle Backflow Preventer.

Frequently Asked Questions

What is the ZURN WILKINS Air Gap Fitting AG-9 used for?

The ZURN WILKINS Air Gap Fitting AG-9 is used to create a physical air gap between a pressure principle backflow preventer and a drain, preventing backflow contamination. It is designed for use with the 475V series backflow preventer in commercial or industrial water systems.

What are the specifications of the ZURN WILKINS Air Gap Fitting AG-9?

The ZURN WILKINS Air Gap Fitting AG-9 is a cast-iron fitting with a 4-inch NPT connection on side 1. It is compatible with the 475V series Pressure Principle Backflow Preventer. The manufacturer part number is AG-9, and the product type is Air Gap Fitting.

Where to buy the ZURN WILKINS Air Gap Fitting AG-9 worldwide?

You can source the ZURN WILKINS Air Gap Fitting AG-9 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install the ZURN WILKINS Air Gap Fitting AG-9?

Install the ZURN WILKINS Air Gap Fitting AG-9 by connecting the 4-inch NPT side to the drain outlet of the 475V series backflow preventer. Ensure the air gap is unobstructed and meets local plumbing codes. Use thread sealant on NPT connections and test for leaks after installation.

Used in

Common applications for ZURN WILKINS
Commercial irrigation systems — Zurn Wilkins pressure vacuum breakers (e.g., 34-710, 1-710) prevent back-siphonage from sprinkler lines into potable water.
Industrial process water — Lead-free pressure vacuum breakers (e.g., 34-460XL) protect potable supplies where high health hazard conditions exist.
Institutional plumbing — Hose bibb vacuum breakers (e.g., BFP-8F, BFP-9) provide low hazard protection on janitorial and maintenance hose outlets.
Food and beverage plants — Zurn Wilkins pressure vacuum breakers (e.g., 114-720A) isolate potable water from cleaning and process lines.
HVAC and boiler feed — Pressure vacuum breakers (e.g., 1-720AU) prevent contamination of potable water used for makeup or auxiliary systems.
Municipal water distribution — Zurn Wilkins backflow preventers (e.g., 34-420XL) are installed at service connections to protect the public supply.
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ZURN WILKINS Products

3G Electric supplies ZURN WILKINS air gaps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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