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6-9
INLET SECTION
Operation
The inlet section contains the pump inlet connection and main relief valve.
P
T
P
T
190bar
INLET
3)
(1)
22B7HS09
Operation of relief valve at setting pressure
When the pressure at inlet reaches to setting pressure, the pilot poppet which is in the main relief
valve is opened by pressure. At this condition the flow divert from the pump directly to the outlet
tank.
(2)
P
T
190bar
P
T
22B7HS10