Pre-load Disc Spring
Pre-load Disc Spring has superior temperature compensation function, can compensate for thermal expansion and contraction caused by repeated changes so that ensure there is no slack bolts at high temperature and low temperature,then remained the pre-tighten purpose stable, and can effectively absorb mechanical vibrations, avoid loose bolts caused by mechanical vibrations, ensure seal durable and reliable, prevent bolt fatigue and gasket failure.
Suitable for all kinds of flange bolt pre-tightening in high temperature. Such as various pipe flange, valves, heat exchanger, reactors, mixer, pumps, centrifuge and others flange bolt pre-tightening. Especially the bolt connection positions of the temperature difference more than 100℃.
common specifications M8 ~ M72, also can be manufactured according to user requirements.
Optional material temperature range is -240 ~ + 750 ℃.