Pharmacy - Pressure Calibrator, Pressure Test

The role of transmitters in pharmaceutical hygiene

As a leader in the pharmaceutical and hygiene sector, where accurate pressure measurement is essential to ensure process safety, efficiency and product quality, Aripy has won wide recognition in the domestic and international markets for its specialized manufacturing of high-end differential pressure transmitters.

In the pharmaceutical industry, especially in the production of biopharmaceuticals and aseptic preparations, there are extremely strict requirements for cleanliness and aseptic operation of the production environment. Differential pressure transmitters can be installed in air pressure control systems in critical areas such as clean rooms, laminar flow hoods, biological safety cabinets, RABS and isolators to monitor positive or negative pressure values in real time, ensuring a constant and appropriate pressure difference between the clean area and the outside environment, preventing the intrusion of external contaminants and maintaining the aseptic conditions required by the production process.

Various filters are used to remove impurities and microorganisms in the purification of APIs, air and water purification. Differential pressure transmitters are connected upstream and downstream of the filter to monitor the pressure difference between the two sides of the cartridge. When the filter media is clogged or nearing saturation, the differential pressure increases and the transmitter issues an alarm, prompting the operator to replace the filter cartridge, ensuring filtration and product quality, and avoiding the risk of contamination due to filter failure.

Application Scenarios and Measurement Elements

CIP/SIP System Control
Pharmaceutical equipment such as fermentation tanks, dispensing tanks, filling machines, etc. need to be cleaned in place (CIP) and sterilized in place (SIP) on a regular basis. Differential pressure transmitters are used to monitor the flow rate, pressure or level of the cleaning solution or steam to ensure that the cleaning agent circulates adequately, the spray pressure is up to standard, and the temperature and pressure conditions for steam sterilization meet the set requirements, thus effectively removing residues and killing microorganisms in the equipment.

Level Measurement and Control
Liquid level monitoring is essential in pharmaceutical manufacturing processes. Differential pressure transmitters can accurately calculate the level of liquid in storage tanks, dosing tanks, buffer tanks and other containers by measuring the pressure difference between the bottom and top of the container (or reference point), ensuring that the level of liquid in the process of material storage and transfer is within a safe range, preventing overflowing or running with empty tanks, and helping to maintain the stability of the continuous production process and the accuracy of material management.

Flow Measurement and Regulation
In raw material transfer, solution mixing and filling, precise control of flow is essential to ensure the correct proportion of drug ingredients and filling accuracy is up to standard. Differential pressure transmitters are used in conjunction with flow meters to measure the pressure difference before and after throttling devices (e.g., orifice plates, venturi tubes, etc.) in the pipeline, calculate the flow rate based on Bernoulli’s equation, and realize real-time flow monitoring and automatic adjustment to ensure the accuracy and stability of process parameters.

Compliance and validation support
GMP-compliant differential pressure transmitters can provide the necessary data logging and alarm functions to support pharmaceutical companies in equipment performance verification, process validation and routine preventive maintenance activities. Their high accuracy, stability and data traceability help to meet stringent regulatory requirements and ensure compliance throughout the pharmaceutical manufacturing process.