CHINA FACTORY ZJ SERIES ROOTS VACUUM PUMP

ZJ Roots Vacuum Pump is vacuum pump without internal compression. It has high pumping speed, equipped with small motor, the pre-stage pump is required. After achieving the specified vacuum degree, the Roots vacuum pump started to increase pumping speed and the vacuum degree.

With similar structure and working principle with roots blower, during operation, the ZJ Roots Vacuum Pump is connected with the main vacuum pump of the vacuum system. There is no contact between rotor and rotor, the rotor and the pump casing, this required high machining accuracy for key parts.

ZJ Roots Vacuum Pump has been proved for long-term operation in different application including petroleum, chemical, plastics, pesticides, turbine rotor dynamic balance, aerospace simulation. It is also widely used in petroleum, chemical, metallurgical, textile and other industries.

ZJB70,ZJB150,ZJB300,ZJB600,ZJ1200, ZJ2500,ZJ3750,ZJ5000 AND ZJ10000

Model		ZJ-150	ZJ-300	ZJ-600	ZJ-1200
Pumping speed（L/s）		150	300	600	1200
Ultimate pressure （Pa）	1stage piston pump as backing pump	5×10-2
	2 stage piston pump as backing pump	1×10-1
Max. allowable diff. pressure（Pa）		8×103		5×103
Motor rotary speed（RPM）		3000
Suitable motor power（kW）		2.2	4	7.5	11
Flange size	Inlet（mm）	100	150	200	250
	outlet（mm）	100	150	200	200
Cooling water consumption（L/h）		120		150
Allowable temperature（℃）		100
Vacuum pump oil		100#
Weight(without motor)（kg）		195	250	760	860