Roots vacuum pumps series HV/BP complete with bypass valve are mainly used coupled to our lubricated vacuum pumps to speed up pumping down times and to achieve vacuum level up to 0,01 mbar abs.
Bypass valve allows to start the Roots pump at the same time as the vane vacuum pump, protecting the Roots pump from any operation at high pressure.
COMPARATIVE TECHNICAL TABLE OF THE MODELS AVAILABLE
|Ultimate pressure (abs.)
|Technical data sheet|
|GMa 11.3 HV/BP||50/60||500/600||1x10-2|
|GMa 11.4 HV/BP||50/60||730/880||1x10-2|
|GMa 12.5 HV/BP||50/60||1000/1200||1x10-2|
|GMa 12.6 HV/BP||50/60||1400/1700||1x10-2|
|GMa 13.f7 HV/BP||50/60||2000/2420||1x10-2|
|GMa 13.8 HV/BP||50/60||2840/3420||1x10-2|
* Backing pump ultimate pressure 0.5 mbar (abs.)