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Bladder Integrity Systems

Bladder integrity System

The HYDAC Bladder Integrity System, or BIS for short, consists of BIS bladder, BIS adapter and electronic component BIS 1000.

The BIS detects the penetration of fluid within the bladder and transmits a signal. Therefore, there is a detection of a split in the bladder. In addition, it is possible to electrically monitor the temperature and pressure (current loop/HART). The BIS is available together with a bladder accumulator as initial equipment. Plus, the BIS-bladder, a retrofit version, is also available.


– Identifies defective bladder during operation. It leads to planned repair/maintenance intervals and therefore, reduces down times.

– Integrated pressure and temperature measurement. It leads to the pressure and temperature monitoring of the accumulator during operation. Therefore, it give an accurate adjustment of p0 and simultaneous temperature indication.


  • Hydraulic accumulators with an emergency function such as mechanical seals, davits, unmanned plants like remotely monitored oil fields, etc…


3829214Bladder 10L 7/8_VG5 NBR20/1.4313 BIS
3859585Bladder 20L 7/8_VG5 NBR20/1.4313 BIS
3859625 Bladder 32L 7/8_VG5 NBR20/1.4313 BIS
3906226Bladder 32L M22x1,5 NBR20/1.4462 BIS
3859628Bladder 50L M50_VG5 NBR20/1.4313 BIS
3905725Bladder 50L M50x2/M22 NBR20/1.4462 BIS
3802556Adapter FPS 7/8-14UNF
923742BIS 1326-F21-0400-000
924351BIS 132Q-F21-0400-DS-000
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HYDAC Australia

HYDAC New Zealand

AUSTRALIA 1300 449 322

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