Breather vent plug as exhaust port filters
For oil tanks, hydraulic cylinders and hydraulic systems
Hydraulic cylinders designed for many years of service must not have their function impaired. In non-pressurised hydraulic cylinder chambers or oil tanks, there is a risk that foreign bodies can enter the interior of hydraulic systems through incoming air. These are quite capable of causing major damage.
This can be prevented with air filters: one of the typical Hänchen developments that has now become a general Hänchen quality standard. The exhaust port filters are suitable for filtering flowing air or flowing gases and can be used up to a maximum temperature of 100 °C.
Properties of the breather vent plug:
- Version as exhaust port filters
- High dirt separation capacity
- Incl. sealing edge, no sealing elements required
- Working pressure up to 10 bar
- Temperature up to 100 °C
- Fluid: air, gases, vapours (bronze compatible)
- Available from stock
Function of the exhaust port filters
Filter air, gases and vapours
Hänchen exhaust port filters consist of a sintered bronze element embedded in a galvanised steel body. They are used for the venting of low pressure areas, such as on oil tanks or unpressurised chambers in hydraulic cylinders and hydraulic systems. The breather vent plug prevent the ingress of foreign bodies in the incoming air, thus preventing damage. They are used as breather vent plug and exhaust port filters. The exhaust port filters are characterised by high dirt separation and long service life and are particularly suitable for filtering flowing air and gases.
Cleaning the exhaust port filters
Visible contamination of the filter element can be removed in counterflow with air. Contamination inside the air filter, such as oil, can be removed with solvents.
Technical data of breather vent plugs and exhaust port filters
| Threaded type |
b |
c |
L |
SW |
Article no. |
Airflow rate in [l/min] at dp=0.25 bar |
| G 1/8 | 8 | 14 | 18 | 17 | 0300700A | 50 |
| G 1/4 | 10 | 19 | 18 | 22 | 0300800A | 100 |
| G 3/8 | 12 | 23 | 20 | 24 | 0300900A | 130 |
| G 1/2 | 14 | 26 | 23 | 27 | 0301000A | 160 |
| G 3/4 | 16 | 32 | 25 | 32 | 0301100A | 220 |
| G 1 | 18 | 39 | 30 | 41 | 0301200A | 400 |
| M 10 x 1 | 8 | 14 | 18 | 17 | 0301300A | 50 |
| M 12 x 1.5 | 10 | 17 | 18 | 22 | 0301400A | 100 |
| M 18 x 1.5 | 10 | 23 | 20 | 24 | 0301500A | 130 |
| M 22 x 1.5 | 14 | 16 | 23 | 27 | 0301600A | 160 |
| M 27 x 2 | 26 | 32 | 25 | 32 | 0301700A | 220 |
| M 33 x 2 | 18 | 39 | 30 | 41 | 0301800A | 400 |
