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Product Name	Central Duct Differential Pressure Sensor for Livestock Farms
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Product Overview	The Central Duct Differential Pressure Sensor for Livestock Farms is designed for continuous pressure monitoring in centralized ventilation ducts, livestock buildings and exhaust-air treatment systems. It measures the pressure difference between two reference points and provides a control signal to compatible climate or production controllers. In commercial pig farms, poultry houses and other intensive livestock facilities, centralized duct systems require stable pressure conditions to distribute or extract air efficiently. Differential pressure feedback enables the ventilation controller to coordinate fans, dampers, air inlets and related airflow-control equipment according to actual system conditions. The sensor is particularly suitable for central exhaust ducts, negative-pressure ventilation installations, air filtration systems and air cleaning projects where pressure monitoring is an important part of environmental control and system protection.
Key Features	Designed for differential pressure monitoring in central livestock ventilation ducts. Suitable for pressure reading, automatic pressure control and alarm applications. Supports integration with compatible livestock climate and production computers. Helps maintain stable airflow conditions in centralized exhaust and air distribution systems. Suitable for pig houses, poultry houses and other mechanically ventilated livestock buildings. Applicable to air cleaning, exhaust treatment and filtered ventilation projects. Compact structure simplifies installation on walls, service panels and duct-side equipment areas. Dual pressure connections allow measurement between two selected pressure reference points. Measurement range and electrical interface can be configured according to project requirements. Suitable for both new livestock building projects and ventilation system retrofits.
Structural Components	Protective Sensor Housing: Encloses the pressure sensing and signal-processing components. Differential Pressure Element: Measures the pressure difference between two connected pressure points. Positive and Negative Pressure Ports: Connect to pressure sampling tubes installed at selected duct or building locations. Pressure Sampling Tubes: Transfer pressure from the measurement points to the sensor. Electrical Cable Interface: Transfers the measured signal to a compatible control or monitoring system. Mounting Flanges: Provide stable mechanical installation on suitable building or equipment surfaces. Optional Sampling Accessories: Available according to duct layout and project installation requirements.
Working Principle / Structural Principle	The sensor operates by comparing air pressure at two different sampling points. In a central exhaust system, one sampling point may be located inside the main ventilation duct while the second point is connected to a reference pressure location. The sensing element detects the resulting pressure difference and converts it into an electrical signal. A compatible climate or ventilation controller receives this signal and can use it to regulate exhaust fans, variable-speed drives, dampers or other airflow-control equipment. When system pressure moves outside the required operating range, the controller can also initiate an alarm or corrective ventilation response. This closed-loop pressure feedback is useful in centralized livestock ventilation because airflow demand changes with animal age, season, temperature, fan operation and air-treatment resistance.
Technical Specifications	Parameter Specification Product Type Electronic differential pressure sensor Measured Variable Differential / static air pressure Primary Application Central ventilation ducts and livestock climate-control systems Pressure Measurement Range Customizable according to project requirements Signal Output Available upon request according to controller requirements Pressure Connections Dual pressure ports for differential measurement Controller Integration Compatible configuration available for livestock climate and production control systems Installation Wall, service panel or equipment-area mounting according to project layout Alarm Function High/low pressure alarm capability through the connected control system Environmental Configuration Designed according to local climate and farm conditions
Applications	Central exhaust ducts in commercial pig houses Centralized ventilation systems for sow, nursery and finishing buildings Poultry house central exhaust systems Livestock air cleaning and exhaust-air treatment installations Filtered-air and high-biosecurity farm ventilation projects Negative-pressure livestock buildings Mechanical ventilation monitoring systems Duct fan and variable-speed fan control Ventilation system pressure alarm monitoring New pig farm construction and existing farm ventilation retrofits
Customization Options	The sensor configuration can be adapted to different livestock ventilation projects. Pressure measurement range, electrical output, cable arrangement, pressure tubing, sampling accessories and controller interface can be selected according to project requirements. For complete livestock building projects, the differential pressure sensor can be integrated with central exhaust fans, variable-frequency drives, air inlets, dampers, climate controllers, filtration equipment and exhaust-air cleaning systems. Project selection can be designed according to local climate and farm conditions, livestock house dimensions, ventilation capacity, duct configuration and environmental-control strategy.
Installation & Maintenance	Install the sensor on a stable surface near the central duct or ventilation control area while protecting it from direct water spray, mechanical impact and unnecessary vibration. Select pressure sampling points that accurately represent the pressure conditions required by the ventilation design. Route pressure tubes carefully and avoid sharp bends, crushing, blockage or locations where condensate may accumulate. The positive and negative pressure ports must be connected according to the required measurement direction. Electrical wiring should comply with the selected livestock climate controller and project electrical drawings. Routine maintenance should include inspection of pressure tubing, sampling points, electrical connections and sensor mounting. Dust, insects, moisture or other obstructions in the pressure tubes should be removed. Sensor zero or calibration should be checked according to the applicable controller and sensor maintenance procedure.
Project Cases	Typical installations include centralized exhaust systems serving multiple pig-house sections, ducted ventilation systems with variable-speed fans, filtered-air pig farms and exhaust-air cleaning projects. In large-scale pig farm construction, the pressure sensor can form part of an integrated climate-control package together with fan groups, duct dampers, air inlets, environmental sensors and central controllers. In renovation projects, it can also be used when upgrading existing ventilation equipment to pressure-based automatic control.
Product FAQ	Q1: What does a central duct differential pressure sensor measure? It measures the pressure difference between two selected locations, such as a central ventilation duct and a reference pressure point. Q2: Why is differential pressure monitoring important in a central exhaust duct? Pressure feedback helps the climate controller maintain stable ventilation performance as fan capacity, airflow demand and system resistance change. Q3: Can the sensor be used with an air cleaning system? Yes. Differential pressure sensing is commonly applicable to centralized ducts associated with livestock air cleaning and exhaust treatment installations. Q4: Can it control ventilation equipment automatically? When connected to a compatible control system, the pressure signal can be used to regulate fans, dampers or other ventilation equipment according to the programmed strategy. Q5: Is the pressure range customizable? Yes. Measurement range and electrical configuration can be selected according to project requirements. Q6: What information should be supplied for project selection? Recommended information includes livestock house dimensions, central duct dimensions, ventilation capacity, controller model, required pressure range, electrical signal requirements and system layout.
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