Johnson Controls VG1841DP Mixing Ball Valve is a 1-1/4 inch NPT three-way forged brass control valve designed for accurate mixing and flow regulation in commercial HVAC hydronic systems.
Built for hot water, chilled water, and glycol solution applications, this VG1000 Series valve helps maintain consistent temperature control by modulating system flow through air handlers, fan coils, heating loops, cooling loops, and building automation systems.
The 18.7 Cv control port and 11.7 Cv bypass port provide dependable flow capacity for balanced HVAC performance, while the threaded NPT connection supports straightforward installation and replacement in compatible piping systems.
Its forged brass body, chrome-plated brass ball, nickel-plated brass blowout-proof stem, graphite-reinforced PTFE seats, and EPDM double O-ring stem seals deliver durable operation, tight shutoff, and leak-resistant performance in demanding mechanical applications.
With 200 psid closeoff pressure, 500:1 rangeability, and a maintenance-free design, the VG1841DP provides precise control across changing load conditions.
Compatible with Johnson Controls VA9104, VA9203, VA9208, and VA9300 Series electric actuators, this mixing ball valve is a reliable solution for on/off, floating, or proportional HVAC control where long service life, actuator flexibility, and efficient hydronic system performance are required.
Frequently Asked Questions
- What is the Johnson Controls VG1841DP used for?
The VG1841DP is a VG1000 Series three-way mixing forged brass ball valve used to regulate hot or chilled water flow in HVAC systems in response to controller demand.
- What size is the VG1841DP valve?
The VG1841DP is a 1-1/4-inch valve, also listed as DN32 in the ordering data table.
- What type of connection does the VG1841DP use?
The model code identifies the valve with a threaded NPT taper end connection.
- Is the VG1841DP a two-way or three-way valve?
The VG1841DP is a three-way mixing valve with equal percentage flow characteristics at the in-line port and linear flow characteristics at the angle port.
- What is the Cv rating of the VG1841DP?
The VG1841DP has an 18.7 Cv control port and an 11.7 Cv bypass port.
- Does the VG1841DP include a flow characterizing disk?
Yes. The ordering data lists the DP size and Cv configuration with a control disk.
- What actuators are compatible with VG1000 Series ball valves?
VG1000 Series valves can be factory or field mounted to Johnson Controls VA9104 and VA9300 Series non-spring return actuators, as well as VA9203 and VA9208 Series spring return electric actuators for on/off, floating, or proportional control.
- What closeoff pressure rating does the VG1000 Series provide?
The VG1000 Series provides a 200 psi closeoff pressure rating for tight shutoff.
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