WASHER SOLUTIONS WS8394 Johnson Controls Modulating Valve – 8394

The 8394 is a modulating valve from Johnson Controls, typically used in HVAC and building systems for proportional flow control. It operates as a two-way or three-way valve depending on configuration, receiving a modulating signal (pneumatic or electronic) to vary flow in response to system demand. The valve is commonly found in chiller loops, heating circuits, and other thermal management applications where gradual adjustment of flow is required rather than on-off switching.