Description
The Belimo B239 is a high-performance 2-way ball valve engineered for reliable flow control in chilled water and hot water HVAC systems. Featuring a nickel-plated forged brass body paired with a stainless steel ball and stem, this valve delivers exceptional durability and corrosion resistance in demanding hydronic applications.
Key Features
- 1-1/2″ NPT end connections for straightforward installation into standard piping systems
- 2-way configuration for on/off or modulating flow control
- 29 Cv flow coefficient for accurate system sizing and balanced performance
- Equal percentage flow characteristic for precise, linear control response across the full stroke range
- Nickel-plated forged brass body for superior strength and corrosion resistance
- Stainless steel ball and stem for long service life and leak-free operation
- Rated for chilled water and hot water applications up to 212°F maximum
- Compatible with glycol solutions up to 60% concentration
Application Suitability
The B239 is ideally suited for use in commercial and industrial hydronic systems including air handling units, fan coil units, chilled beams, and terminal units. Its equal percentage flow characteristic makes it the preferred choice for modulating control applications where precise temperature regulation is critical. Compatibility with up to 60% glycol solutions extends its usability to systems requiring freeze protection in cold climates.
Construction & Materials
- Body: Nickel-plated forged brass
- Ball and stem: Stainless steel
- Connection type: NPT (National Pipe Thread)
- Pipe size: 1-1/2″
Specifications
- SKU: B239
- Brand: Belimo
- Valve type: Ball valve, 2-way
- Connection: 1-1/2″ NPT
- Flow coefficient (Cv): 29
- Flow characteristic: Equal percentage
- Maximum fluid temperature: 212°F
- Glycol compatibility: Up to 60% solution
- Media: Chilled water, hot water, glycol solutions
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