|Load at Full Flat||22600 N|
A simple solution is to install a heavy duty conical spring between nut and structure. the conical spring is to be totally flattened. the conical spring will completely prevent loosening of nut under vibration, impact and thermal expansion. unlike spring washers conical springs exert uniform load and the load capacity is 5-10 times of spring washers.
4 moc: spring steel for temp up to 150 Degree C, chrome vanadium steel for temp. up to 250 Degree C. each spring is coated for marine grade corrosion resistance. these conical springs can be reused any number of times, thus they are a one-time investmentNotes :
- We recommend you use a minimum of 8.8 grade (high tensile) fasteners to use conical springs.
- Apply a small amount of grease to nut/bolt before tightening.
- In many applications, chrome vanadium conical springs can eliminate hot bolting in flanges, heat exchangers & valve bonnets, etc.
If you install a heavy duty conical spring between the nut and bolt below the structure it ensures the nut is under constant tension thus preventing it from loosening. in many countries, these springs are therefore called tension spring. the conical spring is to be fully flattened. the conical spring Will adjust itself against thermal expansion but ensures that bolt/nut assembly does not get loosened. no need for frequent tightening. the conical spring is made from high-grade spring steel, heat treated and coated with special corrosion resistant powder coating (96 hours salt spray test). you can retighten it any number of times (in case the equipment is sent for maintenance or overhaul.) the conical spring thus has a life of several years.