B280+ARB24-3-S | Belimo 3 Inch Two Way Characterized Control Valve With Floating Actuator And Auxiliary Switch

Belimo · Motors & Motion

Description  The Belimo B280+ARB24-3-S is a 3-inch, 2-way characterized control valve assembly designed for accurate hydronic flow control. It combines a Cv 170 brass ball valve with a non spring return floating point actuator featuring an integrated auxiliary switch for position signaling.     Technical Specifications  Condition New/Never Used Surplus Brand Belimo Category Control Valves Part Number B280+ARB24-3-S Subcategory Characterized Control Valves Valve Type Characterized Control Valve (CCV) Valve Size 3 in (DN 80) Flow Pattern 2-way Cv Rating 170 Flow Characteristic Equal percentage Body Pressure Rating 400 psi Close-Off Pressure 100 psi Leakage Rate 0% for A–AB Pipe Connection Female NPT Controllable Flow Range 75° Fluid Compatibility Chilled or hot water, up to 60% glycol Fluid Temperature Range 0…212°F (-18…100°C) Valve Body Material Nickel-plated brass Ball Material Stainless steel Seat Material PTFE Stem Material Stainless steel Actuator Type Non spring return Control Mode On/Off, Floating point Nominal Voltage AC/DC 24 V Power Consumption (Running) 2.5 W Power Consumption (Rest) 0.5 W Auxiliary Switch 1 × SPDT, adjustable Running Time 90 s / 90° Degree of Protection IP54 / NEMA 2 Weight 11.5 lb   Information About B280+ARB24-3-S The B280+ARB24-3-S is part of Belimo’s characterized control valve portfolio engineered to deliver stable and repeatable flow regulation in medium to large hydronic systems. The valve uses an equal percentage characteristic to maintain consistent control authority across varying load conditions. Its factory-installed ARB24-3-S actuator supports floating point control and includes an adjustable SPDT auxiliary switch for end-position indication or system interlocking. Designed for maintenance-free service, the assembly combines corrosion-resistant materials with precise actuator performance for long-term HVAC reliability. Key Features High Capacity Two Way Valve Assembly: Cv 170 rating supports controlled flow in large-diameter hydronic piping systems. Equal Percentage Flow Control: Provides smooth modulation and stable response across the full operating range. Floating Point Non Spring Return Actuator: Enables accurate incremental positioning while maintaining last position on power loss. Integrated Auxiliary Switch: Adjustable SPDT switch allows valve position feedback, alarms, or control interlocking. Durable Brass Valve Construction: Nickel-plated brass body with stainless steel trim ensures corrosion resistance and long service life. Low Power Actuator Design: Efficient 24 V operation minimizes transformer load and energy consumption. Service-Friendly Operation: Manual override and mechanical position indication simplify commissioning and maintenance. The B280+ARB24-3-S delivers the reliability and precision required for accurate hydronic flow control in commercial HVAC applications.

Brand: Belimo · Category: Motors & Motion

Key features

• High Capacity Two Way Valve Assembly: Cv 170 rating supports controlled flow in large-diameter hydronic piping systems.
• Equal Percentage Flow Control: Provides smooth modulation and stable response across the full operating range.
• Floating Point Non Spring Return Actuator: Enables accurate incremental positioning while maintaining last position on power loss.
• Integrated Auxiliary Switch: Adjustable SPDT switch allows valve position feedback, alarms, or control interlocking.
• Durable Brass Valve Construction: Nickel-plated brass body with stainless steel trim ensures corrosion resistance and long service life.
• Low Power Actuator Design: Efficient 24 V operation minimizes transformer load and energy consumption.
• Service-Friendly Operation: Manual override and mechanical position indication simplify commissioning and maintenance.

Specifications

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