Description
The Belimo B252 is a heavy-duty 2-inch NPT, 2-way ball valve engineered for precise flow control in commercial and industrial hydronic systems. Featuring an equal percentage flow characteristic and an impressive 85 Cv flow coefficient, this valve delivers reliable, repeatable modulation for both chilled water and hot water applications.
Construction & Materials
- Nickel-plated forged brass valve body for superior corrosion resistance and long service life
- Stainless steel ball and stem for durability in demanding hydronic environments
- 2-inch NPT end connections for straightforward installation in standard piping systems
Performance Specifications
- Flow coefficient (Cv): 85
- Valve configuration: 2-way
- Flow characteristic: Equal percentage
- Maximum fluid temperature: 212°F (100°C)
- Glycol compatibility: Up to 60% glycol solution
- Connection type: NPT (National Pipe Thread)
- Pipe size: 2 inches
Applications
- Chilled water systems — air handlers, fan coil units, and cooling coils
- Hot water heating systems — boilers, radiant loops, and terminal units
- Glycol-based antifreeze systems in cold-climate installations
- Commercial HVAC and building automation control systems
Why Choose the Belimo B252?
Belimo is a globally recognized leader in actuator and valve technology, and the B252 reflects their commitment to precision engineering. The equal percentage flow characteristic ensures stable, linear control response across the full range of valve travel — making it ideal for pairing with Belimo or third-party actuators in DDC and BAS environments. The nickel-plated forged brass body combined with a stainless steel ball and stem provides outstanding resistance to corrosion and wear, even in glycol-treated systems. With a maximum operating temperature of 212°F and compatibility with up to 60% glycol solutions, the B252 is a versatile choice for year-round hydronic system performance.
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