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	ZGP Vacuum Drier
	JTZ Series Vibration Drier
	ZF series Vacuum Generator Equipment
	QSC Series Wind Power Transport Equipment
	JZJ Series Vacuum Pump Units
	2-Stage Liquid Vacuum Pumps Series 2SK
	Liquid Vacuum Pumps and Compressors Series SK, SZ
	liquid Vacuum Pumps

Products

ZJP Roots Vacuum Pumps

APPLICATIONS & FEATURES
a.Low noise
b.Overflow valve for preventing thermal overloading.
c.High pumping speed in the wide pressure range.
d.Gas protection device for evacuating high-boiling working media
e.Checking is convenient.
f.Insensitive to the dust and water vapour contained in pumped gas
g.Low drive power
h.They find wide application in the fields of metaliurg， chemical， textile and electronics industries.

TECHNICAL DATA

Item/Model	Unit	ZJP-30	ZJP-70	ZJP-150	ZJP-300	ZJP-600	ZJP-1200
Nominal volume flow rate	L/S	30	70	150	300	600	1200
Max.volume flow rate	L/S	35	80	172	340	700	1280
Ultimate pressure	Pa	5×10-2	5×10-2	5×10-2	5×10-2	5×10-2	5×10-2
Max. permissiable oressure difference	Pa	8×103	6×103	5×103	4\×103	3×103	3×103
Compression ratio at zero flow.		25	25	30	30	35	35
Starting pressure	Pa	1×103	1×103	1×103	1×103	1×103	1×103
Noise (LW)	dB(A)	72	75	78	80	82	85
Motor power	Kw	0.55	1.1	2.2	4	5.5	11
rotating speed.	r/min	2825	2825	2840	2890	2900	2930
Lubricant oil filling.	L	2.0	2.5	2.8	4.0	4.0	5
Weight	Kg	130	150	175	315	465	750
Recommended backing pump		2X-8	2X-15	2X-30	2X-70	ZJ-150+2X-30	ZJ-300+2X-70

Performance curves