Integrated dry vacuum pump

Uniform Pitch Screw Vacuum Pump DSUP Series

Dry Screw Vacuum Pump is composed of a pair of meshing screw rotors which rotate in the opposite direction and synchronous way at a high speed in the pump cavity. Without any lubricants or sealing liquid in the pump cavity, screw vacuum pumps can be used to recycle many condensable gases.

Features Specifications Application

1、Screw rotors with high-precision dynamic balance--- smooth operation, lower noise, smaller vibration and longer service life.
2、No contact and friction between screw rotors--- no oil in the pump cavity and zero-discharge of sewage.
3、High strength and stable performance screw rotor made of nodular cast iron.
4、Easy cleaning with nitrogen purging --- simple operation and convenient maintenance.
5、Wide pumping rate range and high ultimate vacuum of 5Pa.

Specification	Unit	DSUP-35	DSUP-70	DSUP-150	DSUP-280	DSUP-390	DSUP-550	DSUP-650	DSUP-800	DSUP-1100
Nominal displacement capacity	M³/h	35	70	150	280	390	550	650	800	1100
Nominal displacement capacity	L/S	10	19	42	78	92	153	167	220	306
Ultimate pressure	Torr	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.04	0.04
Ultimate pressure	Pa	4	4	4	4	4	4	4	5	5
Power	Kw	2.2	4	5.5	7.5	11	15	22	30	37
Rotational speed	RPM	2900	2900	2900	2900	2900	2900	2900	2900	2900
Inlet & Outlet Port	DN mm	40/25	40/30	40/30	80/40	80/40	100/50	100/65	100/65	125/80
Cooling water	L/min	4	4	6	6	6	8	8	8	8
Weight	kg	160	195	230	253	450	523	650	1050	1500
Dimension	mm	745450550	953520600	973600680	1123640680	1357640680	1516780800	169078080	1786840930	22508801100
Noise	db	≤70	≤70	≤75	≤75	≤75	≤80	≤80	≤85	≤85

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