Results 1 to 50 of 57
Thread: Single screw compressor
Threaded View
-
16-12-2007, 02:58 AM #22
Re: Single screw compressor
Having used both single and twin rotor machines, each has a place. In GENERAL, the single rotor machines do better on high evaporator temps or lower pressure ratio jobs and the power is better than a twin rotor.
A twin rotor machine will typically do better on a low temp evaporator of higher pressure ratios.
I certainly hope that the single rotor machines have the star seals and bearing problems solved which I suffered through.
As for twin rotor machines, I have seen a pair of small Fricks that had close to 90,000 hours on them...R22 service, evap condenser on a large cooler. The only repairs were on the oil pumps and each had a shaft seal.
Seen plenty with 50,000 hours plus in a well designed system.
It all boils down to the fact that you can put the best compressor built in a poor system and it will not do well. Put a poorly built compressor in a well designed system and it will do OK, maybe not well though. So for the best, design your system properly and use a well proven compressor.
For the money, I'll still stick to a twin rotor machine...be it GEA, Frick, Mycom or Howden. I tend to shy away from the other brands.
Ken
Similar Threads
-
Experience with a specific screw compressor
By TXiceman in forum CommercialReplies: 17Last Post: 07-04-2009, 07:00 AM -
do u have any data on comparison of single screw and twin screw?
By vuputuri in forum Technical SpeculationsReplies: 5Last Post: 22-02-2008, 03:52 PM -
single stage screw compressor
By murugan in forum Trouble ShootingReplies: 0Last Post: 18-05-2006, 01:27 PM -
Screw compressor vibration
By jpumarada in forum Industrial CompressorsReplies: 14Last Post: 26-04-2006, 01:43 PM -
screw compressor failure
By aygul in forum Trouble ShootingReplies: 23Last Post: 09-12-2004, 09:09 AM