These multi-stage systems combine a Stokes Microvac rotary piston pump (paga 3) with a vacuum blower. They automatically and economically evacuate large ayatems. Equipped with all neces-sary switches and cintrols for automatic or manual operation, the maintain con-stant low pressure even against high gas flow. Customized multi-stage systems are also available to meet your speciflc needs. Features ．Low ultimate blank-off down to 0.1 micron Hg ．Unique oil purification system ．High efficiwncy (80%+)even in the low- micron range ．Automatic operarion from atmos-pheric pressure to bland-off ．Simple design eliminating complex bypass arrangements ．Mnay models abailable with integral by-pass ．Low, simplified maintenance fewer moving parts, less-frequwnt oil chenges then other pumps; no special tools for routine maintenance ．Exclusive Two-Year Limited Warranty Country of Origin：United States of America Competitive Advantages：Well and High Quality Control ,Prompt Delivery ,Competitive Prices ,Small Order Acceptable Sales Method：Wholesale ,OEM/ODM ,Service ,Retail Payment Terms：T/T，L/C
These multi-stage systems combine a Stokes Microvac rotary piston pump (paga 3) with a vacuum blower. They automatically and economically evacuate large ayatems. Equipped with all neces-sary switches and cintrols for automatic or manual operation, the maintain con-stant low pressure even against high gas flow. Customized multi-stage systems are also available to meet your speciflc needs. Features ．Low ultimate blank-off down to 0.1 micron Hg ．Unique oil purification system ．High efficiwncy (80%+)even in the low- micron range ．Automatic operarion from atmos-pheric pressure to bland-off ．Simple design eliminating complex bypass arrangements ．Mnay models abailable with integral by-pass ．Low, simplified maintenance fewer moving parts, less-frequwnt oil chenges then other pumps; no special tools for routine maintenance ．Exclusive Two-Year Limited Warranty Country of Origin：United States of America Competitive Advantages：Well and High Quality Control ,Prompt Delivery ,Competitive Prices ,Small Order Acceptable Sales Method：Wholesale ,OEM/ODM ,Service ,Retail Payment Terms：T/T，L/C
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