Description
The Weil McLain 511-210-423 is a genuine OEM brass drain valve engineered for dependable performance in hydronic boiler systems. Featuring a 3/4″ NPT threaded connection and a 1-1/2″ shank, this valve provides a secure, leak-free fit for draining and servicing boilers and associated piping. Constructed from durable brass, it resists corrosion and withstands the demands of hot-water heating applications.
Key Features
- Genuine Weil McLain OEM replacement part
- 3/4″ NPT threaded connection for standard compatibility
- 1-1/2″ shank length for proper installation depth
- Brass construction for corrosion resistance and long service life
- Designed for use in hydronic boiler and heating system applications
- Enables controlled draining and servicing of boiler systems
Specifications
- SKU: 511-210-423
- Connection Type: 3/4″ NPT
- Shank Length: 1-1/2″
- Material: Brass
- Brand: Weil McLain
Application
This drain valve is a direct OEM replacement for Weil McLain boilers, making it the ideal choice for service technicians and contractors performing routine maintenance, system draining, or repairs. Its brass body and NPT threading ensure compatibility with standard hydronic piping and fittings, simplifying installation and reducing downtime.







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