Midland Black Malleable Iron Lateral Y / Wye
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✔ Contractor-Grade Black Malleable Iron – Threaded NPT
✔ Bulk Pricing Available – Multiple Sizes In Stock
High Demand Item – Frequently Reordered by Plumbing and Gas Contractors
The Midland Black Malleable Iron Lateral Y / Wye is a threaded 45° branch fitting used to create lateral branch connections in gas, air, and plumbing piping systems. Available in multiple sizes — select from the dropdown above.
Black malleable iron construction with NPT threads throughout. The 45° branch angle allows lateral flow connections without a full 90° turn. Conforms to ASTM A197 and ASME B16.3.
Applications
- 45° branch connections in gas piping systems
- Compressed air distribution lines
- General plumbing and mechanical piping
- Industrial piping branch connections
- For low-pressure applications only — not rated for high-pressure service
- Black iron finish — not suitable for outdoor or corrosive environments without additional protection
- Always verify local code compliance before installation
Key Features
- Black malleable iron — ASTM A197
- NPT threads — ASME B16.3
- 45° lateral branch angle — reduces turbulence vs. tee
- Multiple sizes available
Frequently Asked Questions
What is a lateral Y fitting?
A fitting with a 45° branch outlet — allows lateral flow connections with less turbulence than a standard tee.
What thread type?
NPT threads throughout.
Are these galvanized?
No — black iron finish.
What standards?
ASTM A197 and ASME B16.3.
Why Contractors Choose This Product
- 45° branch reduces flow turbulence
- NPT thread compatibility with standard pipe
- Multiple sizes in stock
- ASTM A197 and ASME B16.3 conforming
✔ Bulk Pricing Available
✔ Fast Shipping from Multiple U.S. Warehouses
✔ Built for Contractors, Not DIY