Belimo B350 Ball Valve, 2″ NPT, 57 Cv, 3-Way, Nickel Plated Brass Body

Description

The Belimo B350 is a heavy-duty 3-way ball valve engineered for precision flow control in commercial and industrial chilled water and hot water HVAC systems. Built to withstand demanding hydronic applications, this valve combines a nickel-plated forged brass body with a stainless steel ball and stem for outstanding corrosion resistance and long service life.

Key Features

• 2″ NPT threaded connections for straightforward installation into standard piping systems
• 57 Cv flow coefficient for high-capacity water flow management
• 3-way valve configuration for mixing or diverting applications
• A-port: Equal Percentage flow characteristic for precise, stable control across the full stroke range
• B-port: Modified flow characteristic engineered for constant common port flow, maintaining consistent system performance
• Nickel-plated forged brass body provides superior strength and corrosion resistance
• Stainless steel ball and stem for durability in both chilled and hot water service
• Rated for chilled water and hot water applications up to 250°F maximum

Application

The B350 is designed for use in commercial HVAC hydronic systems including fan coil units, air handling units, and terminal unit applications. The 3-way design allows the valve to serve as either a mixing or diverting valve depending on system configuration. The A-port equal percentage characteristic ensures smooth, proportional flow response ideal for modulating control, while the B-port modified characteristic maintains a constant flow at the common port — critical for variable-flow hydronic system balancing.

Specifications

• SKU: B350
• Brand: Belimo
• Valve Type: Ball, 3-Way
• Connection Size: 2″ NPT
• Flow Coefficient (Cv): 57
• A-Port Flow Characteristic: Equal Percentage
• B-Port Flow Characteristic: Modified (Constant Common Port Flow)
• Body Material: Nickel-Plated Forged Brass
• Ball and Stem Material: Stainless Steel
• Maximum Temperature: 250°F
• Media: Chilled Water, Hot Water

Why Choose Belimo?

Belimo is a globally recognized leader in HVAC actuator and valve technology. The B350 valve body is designed to pair with Belimo’s full line of rotary actuators, providing a complete, factory-matched valve and actuator assembly for reliable building automation and energy-efficient hydronic control.