Description
The Belimo B338 is a high-performance 3-way ball valve engineered for reliable flow control in commercial and industrial chilled water and hot water hydronic systems. Built with a nickel-plated forged brass body and a stainless steel ball and stem, this valve delivers exceptional durability and corrosion resistance in demanding HVAC applications.
Flow Characteristics
The B338 features a dual-port flow design optimized for precise system balancing:
- A-port: Equal Percentage flow characteristic for accurate, proportional control throughout the full stroke range
- B-port: Modified flow characteristic engineered to maintain constant flow at the common port, ensuring system stability and consistent performance
Key Specifications
- Valve Type: 3-Way Ball Valve
- Connection Size: 1-1/2″ NPT
- Flow Coefficient (Cv): 19
- Body Material: Nickel Plated Forged Brass
- Ball and Stem Material: Stainless Steel
- Maximum Temperature Rating: 250°F
- Suitable Media: Chilled Water and Hot Water
Design & Construction
The nickel-plated forged brass body provides superior strength and resistance to corrosion, while the stainless steel ball and stem ensure long service life even in high-temperature hydronic environments up to 250°F. The 3-way configuration allows for mixing or diverting applications, making the B338 a versatile choice for a wide range of hydronic system designs.
Applications
- Chilled water systems
- Hot water heating systems
- Commercial HVAC hydronic piping
- Fan coil units and air handling units
- Mixing and diverting valve applications
Why Choose the Belimo B338?
Belimo is a globally recognized leader in actuator and valve technology. The B338 is designed to pair seamlessly with Belimo actuators, offering a complete, factory-matched valve and actuator assembly for simplified installation and reliable long-term operation. Its robust construction and precise flow characteristics make it an ideal solution for engineers and contractors seeking dependable hydronic control.
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