The Belimo B317B is a precision-engineered 3-way ball valve designed for reliable flow control in commercial and industrial HVAC hydronic systems. Built to handle both chilled water and hot water applications up to 250°F, this valve delivers consistent performance in demanding environments.
Flow Characteristics
- A-port features Equal Percentage flow characterization for accurate, proportional flow control
- B-port features Modified flow characterization engineered to maintain constant flow at the common port
- Cv rating of 4.7 provides dependable flow capacity for 3/4″ piping systems
Construction & Materials
- Nickel-plated forged brass body for superior corrosion resistance and long service life
- Chrome-plated brass ball for smooth, reliable operation and tight shutoff
- Nickel-plated brass stem for added durability and resistance to wear
- 3/4″ NPT connections for straightforward installation with standard piping
Application & Compatibility
- Rated for chilled water and hot water service up to 250°F maximum
- 3-way configuration ideal for mixing or diverting hydronic applications
- Compatible with Belimo actuators for automated control in building automation systems
- Suitable for fan coil units, air handling units, and terminal equipment
Key Specifications
- SKU: B317B
- Brand: Belimo
- Connection Size: 3/4″
- Connection Type: NPT
- Valve Type: 3-Way Ball Valve
- Flow Coefficient (Cv): 4.7
- A-Port Flow: Equal Percentage
- B-Port Flow: Modified (constant common port flow)
- Body Material: Nickel-Plated Forged Brass
- Ball Material: Chrome-Plated Brass
- Stem Material: Nickel-Plated Brass
- Maximum Temperature: 250°F
- Media: Chilled Water, Hot Water
