B2050VS-02+LF24-S US | Belimo 2 Way Ball Valve 0.5 Inch Cv 2 Spring Return 24VACDC On Off
Belimo · Valves & Process Control
Description The Belimo B2050VS-02+LF24-S US is a factory-assembled 2-way ball valve with an integrated spring return actuator for reliable on/off flow control. Designed for 24 VAC/DC operation, this assembly combines precise valve construction with dependable fail-safe actuation for HVAC fluid systems. Technical Specifications Condition New/Never Used Surplus Brand Belimo Category Control Valves Part Number B2050VS-02+LF24-S US Subcategory Ball Valves Valve Type Ball Valve (VS) Valve Size 0.5 in (DN 15) Flow Pattern 2-way Flow Coefficient Cv 2 Controllable Flow Range 90° rotation Leakage Rate ANSI Class VI Body Pressure Rating 600 psig WOG Close-Off Pressure 600 psi Max Differential Pressure (Steam) 35 psi Maximum Velocity 15 FPS Fluid Compatibility Chilled water, hot water, up to 60% glycol, steam Fluid Temperature Range (Water) -22…280°F (-30…138°C) Pipe Connection NPT Valve Body Material Bronze B584-C84400 Ball Material 316 Stainless Steel Stem Material 316 Stainless Steel Seat Material RPTFE Actuator Type Spring Return Control Type On/Off Nominal Voltage AC/DC 24 V Power Consumption (Operation) 5 W Power Consumption (Rest) 2.5 W Auxiliary Switch 1 × SPDT, adjustable 0…95° Protection Rating IP54, NEMA 2 Weight 3.84 lb Information About B2050VS-02+LF24-S US The B2050VS-02+LF24-S US is part of Belimo’s VS series ball valve assemblies, engineered to deliver tight shutoff and consistent flow control in hydronic HVAC systems. The bronze valve body and stainless steel internal components provide durability and corrosion resistance across a wide range of water and steam applications. Factory-mounted with the LF24-S US actuator, the assembly ensures precise mechanical alignment and dependable spring return operation during power loss. This combination is commonly used in commercial heating and cooling systems where safety positioning, low leakage, and long-term reliability are required. Key Features Integrated Valve and Actuator Assembly: Supplied as a factory-fitted unit to ensure proper mechanical coupling, accurate alignment, and simplified installation in HVAC piping systems. Spring Return Fail-Safe Operation: The actuator automatically drives the valve to a predefined safety position upon power interruption, supporting system protection and controlled shutdown. 2-Way Ball Valve with Cv 2: Provides controlled on/off flow regulation for small-diameter piping while maintaining predictable flow characteristics and minimal pressure loss. ANSI Class VI Tight Shutoff: Ensures very low leakage rates, supporting precise flow isolation and improved energy efficiency in closed-loop systems. 24 VAC/DC On/Off Control: Designed for standard low-voltage control architectures, enabling straightforward integration with building automation systems. High-Strength Valve Materials: Bronze body with stainless steel ball and stem, combined with PTFE-based seals, supports high pressure ratings and long service life. Adjustable SPDT Auxiliary Switch: Allows accurate position indication, interlocking, or control feedback with adjustable switching points across the full rotation range. The B2050VS-02+LF24-S US delivers the reliability and precision required for safe, consistent on/off fluid control in commercial HVAC hydronic and steam applications.
Brand: Belimo · Category: Valves & Process Control
Key features
- Integrated Valve and Actuator Assembly: Supplied as a factory-fitted unit to ensure proper mechanical coupling, accurate alignment, and simplified installation in HVAC piping systems.
- Spring Return Fail-Safe Operation: The actuator automatically drives the valve to a predefined safety position upon power interruption, supporting system protection and controlled shutdown.
- 2-Way Ball Valve with Cv 2: Provides controlled on/off flow regulation for small-diameter piping while maintaining predictable flow characteristics and minimal pressure loss.
- ANSI Class VI Tight Shutoff: Ensures very low leakage rates, supporting precise flow isolation and improved energy efficiency in closed-loop systems.
- 24 VAC/DC On/Off Control: Designed for standard low-voltage control architectures, enabling straightforward integration with building automation systems.
- High-Strength Valve Materials: Bronze body with stainless steel ball and stem, combined with PTFE-based seals, supports high pressure ratings and long service life.
- Adjustable SPDT Auxiliary Switch: Allows accurate position indication, interlocking, or control feedback with adjustable switching points across the full rotation range.
Specifications
| Manufacturer part number | B2050VS-02+LF24-S US |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Control Valves |
| Part Number | B2050VS-02+LF24-S US |
| Subcategory | Ball Valves |
| Valve Type | Ball Valve (VS) |
| Valve Size | 0.5 in (DN 15) |
| Flow Pattern | 2-way |
| Flow Coefficient | Cv 2 |
| Controllable Flow Range | 90° rotation |
| Leakage Rate | ANSI Class VI |
| Body Pressure Rating | 600 psig WOG |
| Close-Off Pressure | 600 psi |
| Max Differential Pressure (Steam) | 35 psi |
| Maximum Velocity | 15 FPS |
| Fluid Compatibility | Chilled water, hot water, up to 60% glycol, steam |
| Fluid Temperature Range (Water) | -22…280°F (-30…138°C) |
| Pipe Connection | NPT |
| Valve Body Material | Bronze B584-C84400 |
| Ball Material | 316 Stainless Steel |
| Stem Material | 316 Stainless Steel |
| Seat Material | RPTFE |
| Actuator Type | Spring Return |
| Control Type | On/Off |
| Nominal Voltage | AC/DC 24 V |
| Power Consumption (Operation) | 5 W |
| Power Consumption (Rest) | 2.5 W |
| Auxiliary Switch | 1 × SPDT, adjustable 0…95° |
| Protection Rating | IP54, NEMA 2 |
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