The basic activityof join stock company is disigning and manufacturing of bellows and expansion joints. Our production is established and during 25 years succesfully exploited at all nuclear stations of Russia, CIS and abroad.

The basic activityof join stock company is disigning and manufacturing of bellows and expansion joints. Our production is established and during 25 years succesfully exploited at all nuclear stations of Russia, CIS and abroad.
Our production is used in following branches:
- petrolium natural gas industry;
- chemical, petrochemical and petroleum-refining industry;
- energy industries;
- shipbuilding;
- motor-car construction;
- construction industry;
- military-industrial and aerospace complex;
- nuclear industry.
Typical expansion-joints with nominal diameter nominal diameter from 150 up to 1600 mm, calculated under pressure of operating environment from vacuum up to 4 MPa (40 kgs / cm2) and temperature of a working environment from-50 up to 500C are intended for pipelines with liquid and fluid working environments. Our company has experience of manufacturing of expansion-joints applied in cryogenic technology for work at temperature =-280C, working internal pressure = 20 MPa and trial pressure 28 MPa.