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17 6996 0229 87 Issue A – 05/2017 – © Leybold
Figure 6 – Flow diagram - OP150, OP300 Dry claw overpressure pumps
Over pressure Pump
Air comes in through air inlet filter and silencer. The air flows through the non-return valve which
prevents reverse flow of air to the inlet. The air is compressed in the element and exhausted at
pressure through the pressure port.
Ensure that the safety valve at the outlet is correctly installed and adjusted.