Dry Screw Vacuum Pump

Short Description:

Kaishan dry screw vacuum pumps utilize advanced constant-pitch or variable-pitch rotor technology, requiring no sealing oil or water in the compression chamber, thus achieving truly media-free operation. They are the ideal solution for replacing water ring pumps and oil pumps in demanding processes such as semiconductor manufacturing, chemical recovery, vacuum drying, and pharmaceutical distillation.

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KVSP-H series variable-pitch dry screw vacuum pumps

Vacuum Pump Model		Unit	KVSP200-H	KVSP300-H	KVSP600-H
Maximum pumping speed		m³/h	180	280	560
Extreme pressure		Pa	≤1
Motor parameters	Frequency	Hz	frequency conversion
	Rated Frequency	kW	4	5.5	11
	Extreme Pressure Frequency	kW	2.5	3.5	6.5
Interface Dimensions	Air Intake	DN	ISO63		ISO80
	Exhaust Outlet	DN	NW40		ISO63
	Water Inlet	Rp	3/8		1/2
	Water Return Outlet	Rp	3/8		1/2
Cooling Water	Cooling water consumption	L/min	5~10		8~15
	Inlet and outlet pressure difference	kg/cm²	≥1
	Inlet water temperature	°C	10~32
Purge Gas (nitrogen)	Sealing flow rate (continuous)	L/min	≤5
	Purge flow rate (intermittent)	L/min	20~40		30~50
	Gas source pressure	kg/cm²	2~10
	Interface	Rp	1/4
Lubricant Quantity		L	0.75		1.5
Noise (with silencer)		dB（A）	＜69	＜69	＜
Operating Environment Temperature		°C	5~40
Maximum Poster Height Aallowed		m	1500
Weight		kg	300		480
Dimension		mm	1100450813		13806001098

KVSP-H series variable pitch dry screw vacuum pump unit

Vacuum Pump Model		Unit	KVSP300/1600-H	KVSP600/3800-H	KVSP720/4200-H
Maximum pumping speed		m³/h	1600	3450	3800
Extreme pressure		Pa	≤0.01
Motor parameters	Frequency	Hz	frequency conversion
	Rated Frequency	kW	5.5+5.5	11+7.5	15+7.5
	Extreme Pressure Frequency	kW	5	9.5	12
Interface Dimensions	Air Intake	DN	ISO63	ISO250	ISO250
	Exhaust Outlet	DN	NW40	ISO63	ISO63
	Water Inlet	Rp	3/8	1/2	1/2
	Water Return Outlet	Rp	3/8	1/2	1/2
Cooling Water	Cooling water consumption	L/min	8~15	10~12	8~15
	Inlet and outlet pressure difference	kg/cm²	≥1
	Inlet water temperature	°C	10~32
Purge Gas (nitrogen)	Sealing flow rate (continuous)	L/min	≤5		20
	Purge flow rate (intermittent)	L/min	20~40	30~50	40~60
	Gas source pressure	kg/cm²	2~10
	Interface	Rp	1/4
Lubricant Quantity		L	1.5	3	3.6
Noise (with silencer)		dB（A）	＜72	＜72	＜72
Operating Environment Temperature		°C	5~40
Maximum Poster Height Aallowed		m	1500
Weight		kg	450	630	1250
Dimension		mm	11504501013	14506001600	16706801465

KVSP series variable pitch dry screw vacuum pump

Vacuum Pump Model		Unit	KVSP360	KVSP540	KVSP720	KVSP1000
Maximum pumping speed		m³/h	360	540	720	1150
Extreme pressure		Pa	≤1
Motor parameters	Frequency	Hz	50Hz/frequency conversion
	Rated Frequency	kW	7.5	11	15	22
	Extreme Pressure Frequency	kW	5.5	8	9	13
Interface Dimensions	Air Intake	DN	ISO63	ISO80		ISO125
	Exhaust Outlet	DN	NW50	ISO63		ISO80
	Water Inlet	Rp	3/8	1/2		3/4
	Water Return Outlet	Rp	3/8	1/2		3/4
Cooling Water	Cooling water consumption	L/min	7~15	10~20		15~25
	Inlet and outlet pressure difference	kg/cm²	≥1
	Inlet water temperature	°C	10~32
Purge Gas (nitrogen)	Sealing flow rate (continuous)	L/min	15	20		20
	Purge flow rate (intermittent)	L/min	20~30	40~60		60~80
	Gas source pressure	kg/cm²	2~10
	Interface	Rp	1/4
Lubricant Quantity		L	1.8	3		6.5
Noise (with silencer)		dB（A）	＜76
Operating Environment Temperature		°C	5~40
Maximum Poster Height Aallowed		m	1500
Weight		kg	710	880		1200
Dimension		mm	15507001063	19008101143		20308001143

KVSP series variable pitch dry screw vacuum pump units

Vacuum Pump Model		Unit	KVSP360/1200	KVSP360/2400	KVSP720/2400	KVSP1200/4000
Maximum pumping speed		m³/h	1080	2160	2160	4320
Extreme pressure		Pa	≤0.01
Motor parameters	Frequency	Hz	50Hz/frequency conversion
	Rated Frequency	kW	7.5+4	7.5+7.5	15+7.5	22+11
	Extreme Pressure Frequency	kW	7	8	11.5	17
Interface Dimensions	Air Intake	DN	ISO160	ISO200	ISO200	ISO250
	Exhaust Outlet	DN	NW50	NW50	ISO63	ISO80
	Water Inlet	Rp	3/8	3/8	1/2	3/4
	Water Return Outlet	Rp	3/8	3/8	1/2	3/4
Cooling Water	Cooling water consumption	L/min	7~15	7~15	10~20	15~25
	Inlet and outlet pressure difference	kg/cm²	≥1
	Inlet water temperature	°C	10~32
Purge Gas (nitrogen)	Sealing flow rate (continuous)	L/min	15	15	20	20
	Purge flow rate (intermittent)	L/min	20~30	20~30	40~60	60~80
	Gas source pressure	kg/cm²	2~10
	Interface	Rp	1/4
Lubricant Quantity		L	3.5	4	5	9
Noise (with silencer)		dB（A）	＜76
Operating Environment Temperature		°C	5~40
Maximum Poster Height Aallowed		m	1500
Weight		kg	1200	1400	1700	2200
Dimension		mm	181010101600	181010101600	200011801700	230013601850

Core Technological Advantages:

Completely oil-free: The pump chamber contains no lubricating oil, ensuring that process exhaust gases are not contaminated and emissions are clean, significantly reducing the difficulty and cost of solvent recovery.
Excellent resistance to condensation and dust: The screw-type structure has strong “liquid handling” capabilities, smoothly discharging small amounts of liquid or fine particles generated during the process, preventing pump seizure.
High vacuum and stable pumping speed: Utilizing a two-stage or multi-stage compression design, the ultimate pressure can reach below 1 Pa, maintaining a stable pumping speed across the entire pressure range.
Corrosion-resistant design: For the chemical industry, the rotor can be customized with nickel-phosphorus alloy or Teflon coating, combined with all stainless steel flow-through components, making it impervious to corrosive gases.

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dry screw vacuum pump