6.3 SPRING
The correct operation of a pressure relief valve depends upon its spring characteristics, resilience, and compression.
Good pressure relief valve operation requires:
• Effective and accurate lift
• Sufficient flow rating
• Quick closing (no damping effect when reseating)
The adjustment range of the spring must be within ± 5 % of the nominal value
Spring data should be obtained from Trillium Flow Technologies
TM
’s Sarasin-RSBD
TM
Aftersales Department. When requesting information,
please quote the serial number which is shown on the valve identification plate. Without this number,
it may not be possible to identify the original valve
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6.4 STORAGE
ATTENTION
ATTENTION
Never lift the valve
horizontally, or hook to the
lifting lever or the spring.
Always lift by using the lifting
eyes or sling.
Make sure the valve is not
dropped and does not receive
strikes.
Safety valves may be received several months before an actual plant start-up date. In order that the valve performance is not
adversely affected, it is important to follow some clear rules concerning storage and handling prior to installation.
• It is recommended that the safety valves are stored in a clean and dry environment, protected from weather conditions,
the ingress of sand, dust, or any other solid particles or foreign matter.
• Wherever possible, the valves should be stored in their original packaging.
• Blanking plugs, thread protectors and plastic covers should only be removed at the point of installation of the valve.
• Special attention should be given to flange gasket contact surfaces and machined threads. Impact on these areas
should be avoided.
• The valve must remain vertical, always laying on the inlet end (never on the outlet end).
STARFLOW V
™
PRESSURE RELIEF VALVE
SARASIN-RSBD
™
