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Under Pressure? No Problem! Pressure equalisation valves


Atmospheric pressure differences between the containers and the external atmosphere are brought about by air transports and temperature fluctuations on the ground. Pressure equalisation valves are used to prevent damage to the transported goods or storage containers due to internal or external overpressure. Pressure equalisation valves are set to any desired pressure differences and are available in a variety of designs. They are offered as 1- and 2-way valves, as well as with or without manual discharge.

The pressure equalisation valves comply with the requirements of the International Air Transport Association (IATA) and the Society of Automotive Engineers (SAE).


Pressure equalisation valves

Fig. No. Typ Throughflow rate max. Containervol. Comments
1 TA 292-R 14 l/min 100 l  
2 TA 294-R 28 l/min 200 l  
3 TA 238-R 100 l/min 1000 l  
4 TA 240-R 100 l/min 1000 l  
5 TA 340-R 85 l/min 700 l with humidity indicators for 20,40,60% RH
6 TA 440-R 100 l/min 1000 l with humidity indicators for 20,40,50% RH
7 TA 330 100 l/min 1000 l  
8 TA 333-R 100 l/min 1000 l screened
9 TA 770-R 700 l/min 6000 l screened


Fig. No. Typ Throughflow rate max. Container Vol. Comments
10 BLD 6637 100l/min 1000 l  
11 BLD 7047 100l/min 1000 l FDA
12 BLD 9314 14l/min 100 l  
13 BLD 9629 14l/min 100 l  
14 BLD 8555 7 l/min 50 l with humidity indicator
15 BLD 9156 4200 l/min 30000 l  
16 BLD 10705 54000 l/min 35 0000l suitable for rapid decompression





Pressure equalisation / breather

Further pressure equalisation elements

Open pressure equalisation elements for protection against dust and spray. Unlike valves, however, these elements permit the passage of water vapour.

Fig. No. Typ Throughflow rate Comment
1 BLD 9975 0,03 l/min Spray-protected
2 BLD 6343 0,15 l/min Spray-protected
3 BLD 9290 0,6 l/min Spray-protected
4 BLD 10518 0,6 l/min Spray-protected
5 BLD 6693 0,1 l/min Spray-protected
6 BLD 9036 0,6 l/min Spray-protected