KURBO

Pressure Balanced rubber expansion joints are designed to absorb compression, lateral and angular movements while restraining the pressure thrust force. The arrangement consists of two or three rubber expansion joints and interconnecting hardware, attached to the external or internal interconnecting hardware. Two types of pressure balanced rubber expansion joints are used according to installation location.

Type 20PB-I is designed to function in a straight pipeline with no provision for anchors and absorbs large axial movements while restraining the pressure thrust. It is commonly used when the support structure or adjacent equipment have load limitations. This type requires a lot fewer guides, anchors and supports and it can be installed in a limited space, thus more economical. The balancing expansion joint needs to be twice the effective area as the main(line) expansion joint.

Type 20PB-E is designed to function with incorporation of an elbow and absorbs axial and lateral movements while restraining the pressure thrust. It is commonly used when the support structure or adjacent equipment have load limitations. This type requires a lot fewer guides, anchors and supports and it can be installed in a limited space, thus more economical.
The balancing expansion joint can be the same effective area as the main(line) expansion joint.