Performance:
Capacity (m³/min):13.7 ～753
Pressure Rise (kPa):9.8 ～ 68.6
Rotary Speed (r/min): 490 ～1450
Motor Power (kW): 7.5 ～500

L series Roots type blower/vacuum pump is the new type energy-saving product designed by National UnionAssociated Design Team.  After being restructured many times complying with the market information and customer'sfeedback, L series Roots type blower has acquired some advantages such as good performance, reliable running and the ability of fulfilling varied need of conditions and medium.
Features:
•Pressure changes automatically when system resistance changes.
•Flow changes a little when pressure changes.
•Medium is free of oil.
•The flow range is wide and can be chosen conveniently by users.
•Different seal type is to meet the requirements of varied medium.
•Specifications are various such as verticality, horizontal, positive pressure, and negative pressure.
•Advanced structure ensuring reliable running, long life time, easy operation and maintenance.