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Watts HY 420 12 Wall Hydrant - Watts Wall Hydrants
WattsWatts Wall Hydrants

Watts HY 420 12 Wall Hydrant

The Watts HY 420 12 is a non-enclosed, rectangular wall hydrant designed for 12-inch wall thickness, with an overall length of 16 3/16 inches. It features a chrome-plated bronze face and is manufactured by Watts…

SKU 3G-OTH-429240

Also listed as: HY42012 · HY-420-12

Brand
Watts
Item
HY 420 12 Wall Hydrant
Part Number
HY 420 12
Category
Watts Wall Hydrants
Available to Order
Also known as:HY 420 12Watts
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
HY 420 12
Type
Bronze, Chrome-Plated, Rectangle
Overall Lg
16 3/16 in
Face Type
Non-Enclosed
Face Shape
Rectangle
Color/Finish
Chrome-Plated
Face Material
Bronze

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

Product Description

The Watts HY 420 12 is a non-enclosed, rectangular wall hydrant designed for 12-inch wall thickness, with an overall length of 16 3/16 inches. It features a chrome-plated bronze face and is manufactured by Watts under part number HY 420 12.

Frequently Asked Questions

What is the Watts HY 420 12 wall hydrant used for?

The Watts HY 420 12 is a non-enclosed wall hydrant designed for outdoor or indoor water access through walls up to 12 inches thick. It is commonly used in commercial and industrial facilities for hose connection, washdown, or frost-free service where a chrome-plated bronze finish is desired.

What are the specifications of the Watts HY 420 12?

The Watts HY 420 12 has an overall length of 16 3/16 inches, fits a 12-inch wall thickness, and features a chrome-plated bronze face with a rectangular shape. The face type is non-enclosed, and the manufacturer part number is HY 420 12. It is made by Watts.

Where to buy the Watts HY 420 12 worldwide?

3G Electric supplies the Watts HY 420 12 wall hydrant worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Watts part to any country.

How to install the Watts HY 420 12 wall hydrant?

Install the Watts HY 420 12 by mounting it through a 12-inch wall opening, securing the flange against the exterior surface, and connecting the supply line per local plumbing codes. Ensure the hydrant is properly supported and sealed to prevent leaks. Always follow Watts' installation guidelines for best results.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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Watts Products

3G Electric supplies Watts watts wall hydrants. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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