This edition differs from the previous one in that this has been expanded with more dimensions, no 35 and no 40. Section 2.1.2 - ”Construction requirements” have been added. New material designations and standard references have been introduced. Pressure spring according to this standard are used as elements for spring support SSG 7050.
Spring made by spirally wound spring wire.
Springs must retain their spring constant during the piping system's calculated life cycle with an age-related deviation that does not exceed ± 2.5 % of the pre-tension load.
Pressure spring SSG 7051 - No. 1,5