Description
The Honeywell 311618 Spring Gray 8-12 PSI 953C is a calibration used in pneumatic actuator assemblies to establish and maintain the operating pressure range. It operates by providing a defined mechanical resistance that sets the control point for diaphragm movement, allowing the actuator to modulate valve positioning based on air pressure changes. used in HVAC systems such as pneumatic valve actuator setups in air handling units and central plant control systems, it is fitted within the actuator housing. Consistent tension ensures stable valve response, accurate modulation, and dependable pressure control in heating and cooling distribution systems.
