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Belimo B250 2 Inch 57Cv Ball Valve

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Special Price $224.48 Regular Price $249.18
Out of stock
SKU
B250

The Belimo B250 2 Inch 57Cv Ball Valve is a critical component used in HVAC systems to precisely control fluid flow. To regulate the flow of water, air, or other fluids, this ball valve rotates a spherical ball with a hole through it. The B250 Ball Valve provides dependable and effective performance when easily incorporated into a variety of HVAC equipment, including air handling units, fan coil units, unit ventilators, and VAV box reheat coils. Its strong construction and small size guarantee lifetime, and its high Cv rating of 57 permits high flow rates, which boosts system efficiency.

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HVAC Controls, HVAC Valve
Manufacturer:
https://www.partshnc.com/media/catalog/product/b/2/b250.jpg

Product Overview:
Serves as a characterized control valve for managing water circulation within HVAC hydronic equipment. The Belimo B250 responds to changes in its operating position to control movement through the connected circuit and is used in heating and cooling coil applications. Its ball-based design forms part of the system's flow-control arrangement, allowing circulation to be managed according to operating requirements. The 2" designation identifies the valve size, while 57 Cv identifies the stated flow coefficient.

Flow Path Control:
The valve manages water movement between its two connected ports by changing the available internal flow path according to its operating position. This action allows the connected circuit to receive a controlled amount of circulation rather than relying solely on an unrestricted passage. The control process centres on the changing relationship between valve position and water movement, focusing specifically on flow management within the component.

Hydronic Circuit Role:
Within HVAC hydronic equipment, the valve forms part of the water distribution arrangement serving applications such as heating or cooling coils. Its system-level role is to manage circulation through a selected branch in response to the requirements of the broader control arrangement. This framework addresses where the component participates in the equipment cycle rather than explaining the internal process used to control movement.

Replacement Guidelines:
Replacement requires assessing the valve configuration, flow characteristics, connection arrangement, and associated HVAC equipment specifications. Belimo B250 Ball Valve 2" 57Cv should be selected based on the required control characteristics and operating conditions of the hydronic system.

Common Failure Symptoms:

  • Irregular changes in water movement through the connected circuit.
  • Restricted movement of the valve mechanism.
  • Inability to maintain the required operating position.
  • Leakage around the valve body or connection areas.
  • Unintended changes in the controlled flow path.
  • Reduced response within the associated control arrangement.

Equipment Compatibility:
The Belimo B250 is used in documented HVAC hydronic applications, including air handling units, fan coil units, heating or cooling coils, unit ventilators, VAV box reheat coils, and bypass loops. Verify the equipment model number, existing component identification, and manufacturer's parts documentation before purchase.

Technical Specifications:
Brand: Belimo
Part Number: B250
Product Type: 2-Way Ball Valve
Size: 2"
Connection: NPT
Maximum Temperature: 212°F
Material: Stainless Steel
Flow Coefficient: 57Cv

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Product Questions (7)
Customer Questions
What maintenance is required for the Belimo B250 Ball Valve?

Regularly inspect the valve body and seals for leaks and wear, ensuring smooth operation. Clean any debris buildup and verify tight connections. Periodic cycling can prevent sticking and maintains accurate flow control performance in HVAC systems.

What are common issues with the Belimo B250 Ball Valve?

  • Internal seal leakage causing pressure loss.
  • Actuator failure or stiction under load.
  • Reduced flow control accuracy and fluctuation.
  • Valve sticking due to debris or scaling.
  • Connection joint leakage at pipe fittings.
  • Noisy operation or vibration during cycling.

What type of valve is the Belimo B250?

The Belimo B250 is a two-way characterized control valve designed for managing water movement in HVAC hydronic applications.

What is the difference between a characterized control valve and a basic shutoff valve?

A characterized control valve is intended to manage changing flow conditions as its operating position changes, rather than serving only as a simple open-or-closed device.

Where is the Belimo B250 commonly used?

The Belimo B250 is typically used in HVAC hydronic applications involving heating or cooling coils and other variable-flow water circuits.

How does a two-way valve relate to a hydronic branch?

A two-way valve manages movement through a single connected branch between its two ports as part of the wider water distribution arrangement.

What role does the B250 have within an HVAC control arrangement?

The B250 provides the flow-control element within the water circuit, while associated control components can determine the operating response required by the equipment.

Installation Steps

Step 1: Shut down system, isolate pipeline, and fully depressurize before installation.

Step 2: Position valve ensuring correct flow direction and proper alignment with piping.

Step 3: Install using threaded or flanged connections with suitable sealant or gasket.

Step 4: Tighten fittings evenly to avoid pressure on valve body and piping.

Step 5: Connect actuator if applicable, set position, and verify operation range.

Step 6: Perform pressure test, check for leaks, and restore system gradually.