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09-12-2021, 08:53 PM #1
screw compressor oil safety switches
On screw compressors with none pumped oil feeds relying on discharge pressure only, other than oil flow switches, what other safety devices have you come across? Mainly thinking about when theres no or little oil in the seperater.
CheersLast edited by seanf; 10-12-2021 at 06:15 PM.
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09-12-2021, 09:14 PM #2
Re: screw compressor oil safety switches
Seanf,
Oil level switch, no oil level then no oil.
oil flow switch,
discharge to suction differential,
discharge to oil header differential,
cold start valve to build up differential quickly,
discharge temperature as no oil for cooling cuts out pretty quickly.
low oil filter differential pressure
high oil filter differential
A lot of combinations can be used, but oil level pretty important.
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10-12-2021, 06:14 PM #3
Re: screw compressor oil safety switches
Cheers Ranger.
Should have said, mainly thinking in terms of when theres no or little oil in the seperater.
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10-12-2021, 06:28 PM #4