Laminar Flow Systems
Application: sterile filling of liquid or solid forms and for low particle environments for different industries (pharmaceutics, chemistry, electronics, medical products, food, space industry, etc.).Our laminar flow working places are designed to create a purity class A according to GMP, resp. class 5 according to ISO 14644-1. This complies with an air exchange rate of >800.
The working resp. protection area which needs to be protected is completely equipped with a high performance particle filters. The filters must be installed at the end in the air exit; generally, a fine mesh polyester fabric is installed in the air exit for optimum air distribution. This fabric is also called CG distributor (CG: was first used by Ciba-Geygi) or laminarizator. Alternatively it is also possible to use a stainless steel perforated plate.
Due to the long-term experience and trials it revealed that best results are attained within a sterile zone with an average air speed of 0.45 m/s.
Due to the complete laminar flow all floating particles and particles which are freed during operation are safely collected, pressed downward and flushed out of the sterile zone via defined openings. Since this air is emitted to the environment it is forbidden to process substances which are hazardous to health.
In order to avoid penetration of soilings in the protected area it is necessary to delimit this area by means of a physical barrier: clean room walls, glazing made of mineral glass or plastic material or transparent films – or strip curtains
Laminar flow working places for occupational safety and product protection
Application: sterile filling of liquid or solid forms and for low particle environments for different industries (pharmaceutics, chemistry, electronics, medical products, food, space industry, etc.).
Additionally the system provides operators and environmental protection, application: batch sampling, sample-taking, weighing/detailed work
Laminar vertical air flow in the working area according to the above description.
The whole air quantity is sucked in via the return air duct (passing F9 and H14 filters) and supplied to the recirculation air cycle. These systems are working with a supply and exhaust air portion of about 20%. Due to the exhaust air quantity which is filtered with two H14 filters and transferred to the installation room or to the room exhaust air system a slight vacuum is created in the protected area which avoids that particles escape from the working area to the outside. The filters in the return air duct can be replaced low-contamination.
Due to the air circulation cycle the air in the protected area is heated up, it is optionally possible to integrate coolers contamination-free.
The operators are in the clean air flow filtered with two H14 filters.