Zurn Wilkins 850T 2" Tapped Ball Valve, Full Port Bronze, 400 psi - 2-850T
The Wilkins 850T tapped ball valve provides reliable shutoff and service isolation for backflow assemblies and valve stations. Built with a bronze body and full-port design, it delivers high flow capacity and long service life in residential, commercial and light industrial applications.
Includes links to the manufacturer's specification sheet and accessory catalog for detailed dimensions, materials, and repair kits. Choose this valve when you need a serviceable, full-port tapped ball valve for use on Wilkins backflow assemblies and other piping installations.
Features
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Full port construction: Unrestricted flow path reduces pressure drop and simplifies system flushing.
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Durable materials: Bronze body with brass ball and stem, plus virgin PTFE seat material for chemical resistance and long life.
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Tapped outlet with handle: Integrated tap allows easy access for testing and service; lever handle for positive on/off operation.
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400 psi rating: Designed for system pressures up to 400 psi and common potable water applications.
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Threaded connections: FNPT end connections for straightforward installation on existing piping.
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Upgrade path: Series 850 is being superseded by the 850XL family; compatible replacement parts and repair kits are available.
What our Experts Think
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Heavy-duty 2" full port tapped ball valve designed for reliable shutoff and high-flow performance.
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Durable lead-free bronze construction ensures long service life and excellent corrosion resistance.
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Full port design minimizes pressure drop and maintains maximum system flow efficiency.
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Rated for up to 400 PSI WOG, suitable for demanding commercial and industrial applications.
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Features tapped ends for secure integration into backflow preventer assemblies and piping systems.
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Smooth quarter-turn operation provides fast, dependable flow control with minimal effort.
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Ideal for water distribution, irrigation systems, and mechanical/plumbing installations requiring robust shutoff capability.
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Engineered for code-compliant potable water applications with professional-grade reliability.
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A preferred choice for contractors needing a durable, high-performance isolation valve solution.
Q&A
Q: What is the Zurn Wilkins 850T 2" Tapped Ball Valve (2-850T)?
A: A 2-inch full-port bronze ball valve with tapped FNPT connections designed for shutoff and service isolation in backflow assemblies and commercial water systems.
Q: Where is the 2-850T commonly used?
A: Used on Wilkins backflow preventers and piping systems for irrigation, potable water service lines, and light industrial applications requiring reliable isolation and flow control.
Q: What are its key features?
A: Full-port design for minimal pressure drop, bronze body with brass internal components, quarter-turn operation, and integrated tapped ports for testing/service access.
Q: What are the operating specs?
A: Rated up to 400 PSI WOG with typical operating temperatures from 33°F to 350°F depending on system pressure conditions.
Q: Is the 850T still manufactured?
A: No. The 850T has been discontinued and largely replaced by the lead-free 850XL/850TXL series for modern code compliance.
Q: What is the modern replacement for 2-850T?
A: The recommended replacement is typically the Zurn Wilkins 2-850TXL or equivalent 850XL-series lead-free tapped ball valve.
Maintenance Tips
- Inspect regularly for leaks, corrosion, and handle/packing wear.
- Operate (exercise) the valve periodically to prevent stiffness or seizing.
- Check packing nut tightness and adjust if minor stem leakage occurs.
- Keep valve clean and free of dirt, scale, and debris buildup.
- Replace seats, seals, or packing with compatible repair kits when leakage or wear is detected.
- Ensure proper support and alignment in piping to avoid stress on the valve body.
- Protect from freezing conditions and maintain accessibility for service.
Damage 
Loss 
Theft 
