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MILWAUKEE VALVE Swing Y Check Valve: Swing, Y-Style Valve Body, 1/4 in Pipe Size, FNPT x FNPT - Bronze Y Swing Check Valves
MILWAUKEE VALVEBronze Y Swing Check Valves

MILWAUKEE VALVE Swing Y Check Valve: Swing, Y-Style Valve Body, 1/4 in Pipe Size, FNPT x FNPT

The MILWAUKEE VALVE Swing Y Check Valve is a bronze Y-style swing check valve with a 1/4 in pipe size and FNPT x FNPT NPT connections (MPN 509Y 1/4"). It is designed for unidirectional flow control in industrial…

SKU 3G-OTH-434131

Also listed as: 509Y14 · 509Y 1 4 · 509Y-1-4

Brand
MILWAUKEE VALVE
Item
Swing Y Check Valve: Swing, Y-Style Valve Body, 1/4 in Pipe Size, FNPT x FNPT
Category
Bronze Y Swing Check Valves
Available to Order
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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

MILWAUKEE VALVE
Manufacturer Part Number
509Y 1/4"
Type
Y-Style Valve Body, FNPT x FNPT, NPT
Pipe Size
1/4 in

Technical Documents

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

Product Description

The MILWAUKEE VALVE Swing Y Check Valve is a bronze Y-style swing check valve with a 1/4 in pipe size and FNPT x FNPT NPT connections (MPN 509Y 1/4"). It is designed for unidirectional flow control in industrial piping systems.

Frequently Asked Questions

What is the MILWAUKEE VALVE Swing Y Check Valve used for?

The MILWAUKEE VALVE Swing Y Check Valve is used to prevent backflow in piping systems. Its Y-style body and swing mechanism allow flow in one direction only, making it suitable for water, oil, and gas applications in commercial and industrial plumbing.

What are the specifications of the MILWAUKEE VALVE 509Y 1/4"?

The MILWAUKEE VALVE 509Y 1/4" is a bronze Y swing check valve with a 1/4 in pipe size and FNPT x FNPT NPT connections. The Y-style valve body enables inline servicing. It is designed for low-pressure systems and is manufactured by MILWAUKEE VALVE.

Where to buy the MILWAUKEE VALVE 509Y 1/4" worldwide?

You can source the MILWAUKEE VALVE 509Y 1/4" through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install a MILWAUKEE VALVE swing check valve?

Install the MILWAUKEE VALVE swing check valve with the flow arrow pointing in the direction of flow. Use thread sealant on the FNPT connections and tighten to recommended torque. Ensure the valve is installed horizontally or vertically with the cover facing up for easy maintenance.

Used in

Common applications for MILWAUKEE VALVE
Oxygen service systems — Milwaukee Valve oxygen-cleaned brass ball valves (e.g., MPN 17907S) for high-purity gas handling
Potable water distribution — Milwaukee Valve non-rising stem brass gate valves (e.g., MPN UP667 1") for isolation in plumbing networks
Steam and hot water systems — Milwaukee Valve bronze globe valves (e.g., MPN 502 1-1/2) for flow regulation in industrial boilers
Gas and oil pipelines — Milwaukee Valve angle-body globe valves (e.g., MPN 504-3/4) for throttling in fuel supply lines
Process piping — Milwaukee Valve full-port brass ball valves (e.g., MPN UPBA475B 2) for minimal pressure drop in chemical transfer
Drain and vent applications — Milwaukee Valve stainless steel vented ball valves (e.g., MPN 35FSSN0LL-034) for system purging in sanitary processes

MILWAUKEE VALVE Products

3G Electric supplies MILWAUKEE VALVE bronze y swing check valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MILWAUKEE VALVE Swing Y Check Valve: Swing, Y-Style Valve Body, 1 1/4 in Pipe Size, FNPT x FNPT, NPT (MPN 509Y 1-1/4")
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MILWAUKEE VALVE Swing Y Check Valve: Swing, Y-Style Valve Body, 1 1/2 in Pipe Size, FNPT x FNPT, NPT (MPN 509Y 1-1/2")
Bronze Y-style swing check valve with 3/8 in pipe size and FNPT x FNPT NPT connections. Designed for unidirectional flow control, it prevents backflow in piping systems for water, oil, and gas applications
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Bronze Y-style swing check valve with 3/8 in pipe size and FNPT x FNPT NPT connections. Designed for unidirectional flow control, it prevents backflow in piping systems for water, oil, and gas applications
MILWAUKEE VALVE Swing Y Check Valve: Swing, Y-Style Valve Body, 1 in Pipe Size, FNPT x FNPT, Bronze (MPN 509Y 1")
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MILWAUKEE VALVE Swing Y Check Valve: Swing, Y-Style Valve Body, 1 in Pipe Size, FNPT x FNPT, Bronze (MPN 509Y 1")
Bronze Y-style swing check valve with 3/8 in pipe size and FNPT x FNPT NPT connections. Designed for unidirectional flow control, preventing backflow in piping systems. The Y-style body allows inline servicing without removing the valve from the pipeline
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Bronze Y-style swing check valve with 3/8 in pipe size and FNPT x FNPT NPT connections. Designed for unidirectional flow control, preventing backflow in piping systems. The Y-style body allows inline servicing without removing the valve from the pipeline

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