Which series of liquid ring vacuum pump can not do double mechanical seal ?
The model from 2BV2 060 to model 2BV2-071 monoblock type liquid ring vacuum pumps can not do double mechanical seal, even changed to 2BV6 series ( the model from 2BV6 060 to model 2BV6-071 liquid ring vacuum pumps ) which still is not available. For 2BV5 series liquid ring vacuum pumps also are not available, but you can consider the 2BV6 series (the model from 2BV6-100 to model 2BV6-161).
The two stage liquid ring vacuum pump for model DLV 110-140-180 can not do double mechanical seal, the reason is the space which to install the double mechanical seal is not enough. Above the model DLV 300 type are all no problem.
For 2BE series single stage liquid ring vacuum pumps are all no problem do install the double mechanical seal.
