Best-selling expansion joints                                                 

 Technical Data Sheet

Design Pressure≤0.75Mpa     Design Temperature-35~150

Axial Movement-20mm~20mm  Lateral Movement-10mm~10mm

Medium Sulfur Hexafluoride Gas or other gas arc extinction and insulation.     

Cycle Life:Above 10000 times

Pressure vessel:

As  the holder of the composite apparatus cant bear much pressure,so the structure should be designed to Pressure Balance Type so that the expansion joints can balance the force produced by inside pressure rely on the elastic force of the disc spring to reduce the pressure on the holder.The composite apparatus arefull of expensive media of SF6 gas,annual air leakage≤1,or it will lower the reliability of the products when it operating,if seriously,it will lead to the power cut and the overhaul of the whole system,so the require to the gas tightness is pretty high.

This expansion joint sued as an electric elements,require the inner surface is very smooth and no cusp,or there maybe electric discharge,incluence the insulating property of the products.

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