Dynaset HKR 2000 - Oil Non-Return Valve; Picture 12: Operating Principle of Oil Non-Return Valve

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Dynaset Oy | Menotie 3, FI-33470 Ylöjärvi, Finland | tel: +358 3 3488 200 | info@dynaset.com | www.dynaset.com
HYDRAULIC SCREW COMPRESSORS
OPERATING PRINCIPLES
3.6. OIL NONRETURN VALVE
The oil non-return valve prevents oil flooding from air-oil separating element(s).
The oil tend to flow from air-oil separating element(s) to screw compressor due
to the pressure difference in the system when the screw compressor system is
switched off.
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HKR 500 - 7500
Picture 12: Operating principle of oil non-return valve
1. Screw plug
2. Return line for oil separation
3. Non-return valve