Spirax Sarco Safety Valve SV60H

Check material suitability, pressure and temperature

Determine the correct installation situation and direction of fluid flow

Consider external stresses and take adequate precautions to minimise them

Remove protective covers from all connections and protective film from all nameplates

Ensure safe access and if necessary a safe working platform

Consider what is in the pipeline or what may have been in the pipeline at some previous time

8.1 Once the safety valve has been fitted check that there are no leaks from either the inlet or the outlet connections.

8.2 Test the valve by raising the system pressure. Check that the safety valve operates at the correct set pressure, and that the overpressure is limited to 5% of the set pressure or 10% for SV60H.

8.3 Reduce the system pressure to the normal operating pressure and check that the safety valve reseats.

9.1 It is recommended that the safety valve be tested for correct operation on a regular basis, at least every 12 months as described above in Section 8, as part of a documented and controlled procedure, the frequency of testing is dependant on the application and system conditions and an appropriate test interval must be decided by the user or relevant insurance company.

Note: Use suitable protection against excess heat and noise when testing safety valves.

9.2 Some valves are fitted with standard (open type) or packed easing levers to enable testing for correct operation during use.

Do not operate the easing lever unless the system pressure is at least 85% of the safety valve set pressure.