What is the maximum load for variable and constant supports during hydrostatic testing?

Details of allowable load for hydrostatic test are as follows:
For constant effort supports: 2 x support load.
For variable effort supports: 2 x maximum load for the spring.

If the hydrostatic test load is greater than this, this must be specified on the enquiry and order. PSL will then design special spring housings to accommodate the high test load. Alternatively, additional temporary supports are sometimes used during hydrotest.