http://www.pipesupports.com/sites/default/files/PS-snubbers-catalogue-METRIC.pdfIn the above doc, page 6/126 bottom, special hydraulic snubber with bypass eliminated to hold PSV thrust force for prolonged duration has been discussed.
It is risky to volunteer using such a device on a safety valve in a real plant. It will require manual bypassing of snubber before steam piping cools down; otherwise, safety valve neck may break.
reg,
sam
Previous Topic
Index
