Overview
The Belimo B231 is a 1.25 inch 2-way characterized control ball valve engineered with a 25 Cv rating and stainless steel trim. It offers reliable, high-capacity flow modulation for commercial hydronic systems.
Features
- High flow capacity of 25 Cv for 1.25 inch piping
- Equal percentage characteristic for stable system regulation
- Heavy-duty stainless steel ball and stem for corrosion resistance
- Zero-leakage tight shut-off preventing energy waste
Specifications
- Valve Size: 1.25 inch [32 mm]
- Pattern: 2-way
- Cv: 25
- Trim: Stainless steel
- End Fitting: Internal thread NPT
- Close-off Pressure: 200 psi
- Controllable Flow Range: 75°
- Fluid Compatibility: Chilled or hot water, up to 60% glycol
Applications
- Heating and cooling coils in large air handling units
- Commercial hydronic building automation loops
- Central plant water circulation and bypass circuits


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