SPR-YP21E; SPR-YC21Micro Differential Pressure Sensor

Used in negative pressure ward air flow management systems to monitor the air pressure difference within the ward. Used in negative pressure ward air flow management systems to monitor and manually control the air pressure difference within the ward.

DefinitionMicro differential pressure sensor is a collection device used in negative pressure ward air flow management systems to monitor the air pressure difference inside and outside the ward.

Application AreasNegative pressure wards, clean rooms, positive pressure air supply systems for stairwells in anterooms, etc.

Working PrincipleThe micro differential pressure sensor is installed at the ward entrance. Using the U-tube principle, it monitors the relative pressure difference inside and outside the ward in real time. It works in conjunction with the linkage controller to regulate the air volume control valves (supply air valve and exhaust air valve), adjusting the exhaust/supply air ratio to maintain a reasonable negative pressure range inside and outside the ward, effectively preventing virus transmission.

Installation LocationAt the ward entrance, medical corridor, or buffer room, within visual range, at a height of approximately 1.5m to 1.6 meters.

SPR-ZK20EDifferential Pressure Linkage Controller

Used in negative pressure ward air flow management systems to control the opening angle of exhaust air valves/supply air valves.

DefinitionThe differential pressure linkage controller, referred to as the linkage controller, is used in negative pressure ward air flow management systems to work in conjunction with the micro differential pressure sensor to control the opening angle of exhaust air valves/supply air valves.

Application AreasNegative pressure wards, clean rooms, positive pressure air supply systems for stairwells in anterooms, garage exhaust systems, etc.

Working PrincipleThe differential pressure linkage controller communicates with the micro differential pressure sensor. Based on the pressure difference value inside and outside the ward, it联动 controls the opening angle of the exhaust air valve, adjusts the exhaust/supply air ratio, and maintains the pressure difference inside and outside the ward within a reasonable range to prevent virus transmission.

Installation LocationThe differential pressure linkage controller and the electric actuator are both installed on the valve body (sealed valve, exhaust air valve) in a 1:1 ratio.