In a clean room environment, pressure difference control is a key step in ensuring air cleanliness and preventing cross contamination. Air always flows from high-pressure areas to low-pressure areas, and once the pressure difference loses control, the clean area may be irreversibly polluted. How to achieve stable and reliable pressure difference monitoring and control? The GTI brand differential pressure testing product is an ideal tool designed to solve this problem.

What is the "pressure difference" in the clean area?

As we all know, 'people move upwards, water flows downwards', and the air in nature also flows with the wind. In fact, the movement of this fluid cannot be separated from the effect of' pressure difference '.

In the clean area, the pressure difference between each room and the outdoor atmosphere is called the "absolute pressure difference".

The pressure difference between each adjacent room and area is called "relative pressure difference", abbreviated as "pressure difference".

The term 'pressure difference' commonly used in daily life refers to these two types. Maintaining a reasonable pressure gradient is the foundation for ensuring that high cleanliness areas are not contaminated by low-level areas.

Why is PART02 differential pressure control so important?

In the clean area environment, pressure difference control is a key link to ensure product quality, and its importance is mainly reflected in the following three aspects:

01 Establish a directional airflow barrier

By maintaining a stable pressure gradient, it ensures that air always flows from areas with high cleanliness to areas with low cleanliness, forming an effective air barrier.

02 Preventing cross contamination

The production or experimental activities conducted in clean rooms have environmental requirements. Unbalanced pressure difference can cause pollutants to diffuse with the airflow, which may result in serious consequences such as product contamination and batch scrapping.

03 Meet relevant regulations

GMP and other regulations require that the pressure difference between clean and non clean areas, as well as between different levels of clean areas, should not be less than 10 pascals. This is a basic standard that pharmaceutical companies must comply with.

PART03 GTI differential pressure testing equipment: precise monitoring, intelligent control

01 Handheld Micro Differential Pressure Gauge GTI113/115

GTI113/115 are two portable micro differential pressure gauges with high measurement accuracy, which can be used for non corrosive gas pitot tube anemometers. Suitable for measuring wind speed values such as high-efficiency air outlets and pipeline air outlets, it is an ideal instrument for gas pressure testing or calibration in hospitals, clean rooms, laboratories, HVAC systems, and wall mounted boilers.

02 Micro differential pressure transmitter GTI131

The GTI 131 series products have multiple output types and ranges for customers to choose from, making it more convenient to use. It has the characteristics of high precision, fast response, and ultra-low range. Fully meeting the requirements of industry applications, it is an ideal choice for pharmaceutical factories, infectious disease wards, electronic clean rooms, and dust-free laboratories.

03 Pressure sensor GTI150

The GTI150 pressure sensor is a device that can sense pressure signals and convert them into electrical signals according to the law. It is widely used in various industrial integrated automation environments, involving electronic equipment, water conservancy and hydropower, production automation, aerospace and many other industries.

Conclusion

In clean environment management, pressure difference is not a static parameter, but a key indicator that requires continuous monitoring and dynamic regulation. GTI brand differential pressure testing products provide you with a full process solution from monitoring to control, helping to achieve high-precision and high stability clean area differential pressure management.