The Johnson Controls VG1841FS+948AGA is a factory-assembled ball valve and electric actuator combination designed for two-position or fail-safe spring return applications. This model features brass trim, a 46.8 Cv flow coefficient, and a spring return actuator configured for counterclockwise (CCW) fail position. It is supplied without auxiliary switches and is suitable for HVAC and hydronic systems requiring automatic shutoff or control of water and glycol mixtures.
Technical Specifications
- Model: VG1841FS+948AGA
- Valve Type: 2-way ball valve
- Actuator Type: Spring return, counterclockwise (fail position)
- Flow Coefficient (Cv): 46.8
- Body Material: Brass
- Trim Material: Brass
- Connection Type: Typically NPT (confirm per configuration)
- Fail-Safe Action: Spring return to CCW (normally closed or open based on valve orientation)
- Switches: No auxiliary switch included
- Application Fluid: Water or up to 50% glycol solutions
Key Features
- Factory-assembled valve and actuator for simplified installation
- 46.8 Cv provides high flow capacity for larger hydronic loops
- Brass body and trim for corrosion resistance and durability
- Spring return actuator ensures default position during power loss
- No auxiliary switch, suitable for applications not requiring feedback signal
- Ideal for automatic shutoff and flow control in HVAC and process systems
Compatible Components & Accessories
- Johnson Controls controllers with two-position or floating signal outputs
- Pipe fittings for connection to chilled or hot water lines
- Control panels and automation systems
- Glycol-compatible hydronic equipment
Industry Applications
- HVAC zone and main line flow control
- Hydronic heating and chilled water systems
- Equipment isolation in building automation
- Cooling loops for industrial process systems
- Systems requiring spring return to ensure safety or shutoff
Installation & Maintenance Notes
- Ensure valve is installed in the correct flow direction as marked
- Mount actuator per manufacturer orientation guidelines for fail-safe operation
- Check torque and stroke compatibility if replacing actuator only
- Do not install in environments where condensation may compromise electronics without protection
- Periodically inspect for seal wear, leakage, and actuator response
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.