Description
Overview
The Belimo B253 is a heavy-duty 2-inch NPT, 2-way ball valve engineered for demanding chilled water and hot water HVAC applications. Featuring a nickel-plated forged brass body paired with a stainless steel ball and stem, this valve delivers outstanding corrosion resistance and long service life in commercial and industrial hydronic systems. With a generous 120 Cv flow coefficient and equal percentage flow characteristic, the B253 provides precise, stable flow modulation across a wide operating range.
Key Features
- 2-inch NPT end connections for straightforward installation into standard piping systems
- 2-way valve configuration for on/off or modulating flow control
- 120 Cv flow coefficient for high-capacity hydronic applications
- Equal percentage flow characteristic for accurate, linear control response
- Nickel-plated forged brass body for superior strength and corrosion resistance
- Stainless steel ball and stem for durability and long-term reliability
- Rated for chilled water and hot water service up to 212°F maximum
- Compatible with glycol solutions up to 60% concentration
Specifications
- Brand: Belimo
- SKU: B253
- Valve Type: Ball Valve
- Connection Type: NPT (Threaded)
- Pipe Size: 2 inch
- Flow Coefficient (Cv): 120
- Flow Characteristic: Equal Percentage
- Number of Ways: 2-Way
- Body Material: Nickel-Plated Forged Brass
- Ball and Stem Material: Stainless Steel
- Maximum Fluid Temperature: 212°F
- Glycol Compatibility: Up to 60% Glycol Solution
- Suitable Media: Chilled Water, Hot Water
Applications
- Commercial and industrial chilled water systems
- Hot water heating and hydronic distribution systems
- Air handling units (AHUs) and fan coil units (FCUs)
- Variable air volume (VAV) systems requiring precise flow modulation
- Glycol-based antifreeze loop systems
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