A.Y. McDonald 72051S Y-Pattern Swing Check Valve, No-Lead
A.Y. McDonald 72051S Y-Pattern Swing Check Valve, No-Lead

A.Y. McDonald 72051S Y-Pattern Swing Check Valve - No-Lead Bronze, Sweat x Sweat, 300 WOG

Size: 1/2 in
Pack - Part No.: Single - 5421-254

Product variant with selected options does not exist!
$47.74
SKU: 5421-254
Weight : 0.62 lb
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Description
A.Y. McDonald Mfg. Co. · Y-Pattern Swing Check Valve
72051S Y-Pattern Swing Check Valve
No-Lead bronze, sweat x sweat ends, 300 WOG
No-Lead Bronze
300 WOG
Y-Pattern
Sweat x Sweat
NSF/ANSI 372 and 61
1/2 in to 2 in
Overview

The A.Y. McDonald 72051S is a No-Lead bronze Y-pattern swing check valve with sweat x sweat ends, rated 300 WOG (non-shock). A.Y. McDonald builds its No-Lead low pressure valves from heavy-duty No-Lead bronze for residential and commercial applications.

  • 300 WOG (non-shock)
  • Y-pattern swing check
  • No-Lead bronze body, disc and bonnet
  • Directional: install with the flow arrow
  • Certified to NSF/ANSI 372 and NSF/ANSI 61
What Ships and What It Needs to Run

Included: one y-pattern swing check valve.

Genuine A.Y. McDonald equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.
1-Year A.Y. McDonald Warranty

Covered for 1 year from the date of shipment from A.Y. McDonald’s factory under A.Y. McDonald’s published limited warranty, which applies to the products A.Y. McDonald manufactures.

Specifications
Construction No-Lead bronze (C89844 MOD)
Connections Sweat x Sweat
Solder ends Conform to ANSI B16.18
Pressure rating 300 WOG (non-shock)
Steam rating (WSP) 125 WSP per the price list and catalog; the submittal lists 150 WSP
Temperature rating 180°F (submittal)
Flow Directional
Compliance NSF/ANSI 372, NSF/ANSI 61; complies with AB 1953
Lead content Weighted average of the wetted surface under 0.25% lead (A.Y. McDonald No-Lead definition)
Sizes 1/2 in, 3/4 in, 1 in, 1 1/4 in, 1 1/2 in, 2 in

Source: A.Y. McDonald Plumbing Price List, effective 7-07-26, pp. 20-21; A.Y. McDonald Plumbing Catalog (1/25), No-Lead Check Valves and Strainers, pp. 30-31; A.Y. McDonald 72051S submittal data sheet.

Models
Part No. Size Length (L, in) Height (H, in) Sold As
5421-254 1/2 in 2.72 2.07 Single
5421-255 3/4 in 3.37 2.60 Single
5421-256 1 in 4.09 2.91 Single
5421-257 1 1/4 in 4.76 3.60 Single
5421-258 1 1/2 in 5.43 4.13 Single
5421-259 2 in 6.66 5.06 Single
Before You Order. Not for wastewater use. Install with the arrow in the direction of flow. Steam rating: A.Y. McDonald’s price list and catalog show 125 WSP, its submittal 150 WSP; we quote the lower figure.
Materials of Construction
Body No-Lead bronze (C89844 MOD)
Cap/bonnet No-Lead bronze (C89844 MOD)
Disc No-Lead bronze (C89844 MOD)
Bolt and pin No-Lead brass

From the A.Y. McDonald 72051S submittal data sheet.

For engineering-led sizing and selection support or a factory submittal, email sales@watermainsupply.com or call 1-888.510.4036.
© Watermain Supply — A division of E4 Industrial LLC
Data Sheet
72051S Y-Pattern Swing Check Valve Submittal Data Sheet No-Lead Check Valves and Strainers Catalog Section (2025)
Videos

Product videos are being added to this listing. For a walkthrough in the meantime, email sales@watermainsupply.com.

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