screw vacuum pump

LGB70 Dry Screw Vacuum Pump - Oil-Free Industrial Vacuum Solution

Discover the LGB70 dry screw vacuum pump - a 100% oil-free industrial vacuum solution with remote monitoring capabilities. Perfect replacement for water ring and reciprocating pumps, delivering superior vacuum performance with minimal maintenance.

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Product Details

Description

This comprehensive guide covers the LGB70 dry screw vacuum pump's oil-free technology, technical specifications, industry applications, and answers to 10 critical FAQs about installation, operation and maintenance in industrial environments.

Product Introduction: LGB70 Dry Screw Vacuum Pump

The LGB70 dry screw vacuum pump represents cutting-edge oil-free vacuum technology, designed to meet the demanding requirements of modern industrial applications while eliminating contamination risks.

Key Advantages

✔ 100% oil-free operation - No process contamination or oil mist emissions
✔ High vacuum performance - Achieves 0.1mbar ultimate vacuum
✔ Energy efficient design - 30-50% less power than conventional pumps
✔ Smart monitoring - IoT-enabled for predictive maintenance
✔ Low maintenance - Only two wearing parts for reduced downtime

性能参数表 Performance parameter table
性能参数表 Performance parameter table
常规螺杆真空泵推荐Conventional screw vacuum pump recommended		型号 Model	LG30	LGB50	LGB70E	LGB110E	LGB150E	LGB180E	LGB230E	LGB300	LGB360	LGB400	LGB500
抽气速率(50Hz) Pumping rate (50Hz)		L/s	30	50	70	110	150	180	230	300	360	400	500
抽气速率(50Hz) Pumping rate (50Hz)		m³/h	108	180	250	400	540	650	828	1080	1300	1440	1800
极限全压力(50Hz) Ultimate full pressure (50Hz)		Pa	5	5	5	5	5	5	5	5	5	50	50
最大排气压力 Maximum exhaust pressure		bar	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
配用电机功率(50Hz) With motor power (50Hz)		kW	4	4	7.5	11	15	15	18.5	30	30	37	45
转速(50Hz) Speed (50Hz)		rpm	2880	2880	2900	2900	2940	2940	2950	2950	2950	2950	2950
连接进气口径 Connect the intake calibers		mm	50	50	65	65	100	100	100	150	150	150	150
连接排气口径 Connected exhaust diameter		mm	40	40	65	65	80	80	80	100	100	100	100
冷却水 Cooling water	流量 Flow rate	L/min	≥10	≥10	≥12	≥12	≥15	≥15	≥15	≥20	≥20	≥22	≥22
	压力 stress	MPa	0.2~0.35
	出水温度 Effluent temperature	℃	≤40
	接口 port		G3/8"	G3/8"	G1/2"	G1/2"	G1/2"	G1/2"	G1/2"	G1/2"	G1/2"	G1/2"	G1/2"
噪音 Nois		dB(A)	≤76	≤76	≤76	≤78	≤78	≤78	≤80	≤85	≤85	≤85	≤85
润滑脂进气端 Grease intake end		L	0.2	0.2	0.3	0.3	0.3	0.3	0.3	0.5	0.5	0.5	0.5
润滑脂排气端 Grease exhaust en		L	0.8	0.8	1.2	1.2	1.8	1.8	1.8	3.4	3.4	3.4	3.4
氮气系统 Nitrogen system	压力stress	Mpa	0.05	0.05	0.05	0.05	0.06	0.06	0.06	0.07	0.07	0.07	0.07
氮气系统 Nitrogen system	流量 Flow rate	L/min	25-30	25-30	30-35	30-35	35-40	35-40	35-40	40-45	40-45	40-45	40-45
重量(包括排气罐) Weight (including exhaust tank)		kg	310	310	450	540	800	800	880	1250	1400	1400	1490

Industry Application Cases

Case 1: Chemical Processing Plant

Replaced water ring pumps to achieve:

45% reduction in energy consumption
Zero wastewater generation
99.9% solvent recovery rate
Remote monitoring reduced staffing needs

Case 2: Pharmaceutical Freeze Drying

Performance highlights:

Met strict FDA GMP requirements
24/7 continuous operation reliability
75% reduction in maintenance costs

Case 3: Electronics Manufacturing

Key results:

Eliminated oil contamination in cleanrooms
Maintained stable 0.5 mbar process pressure
3-year maintenance-free operation

LGB70 Dry Screw Vacuum Pump FAQs

1. How does dry screw technology differ from oil-lubricated pumps?

Uses precisely machined intermeshing screws that operate without lubrication, eliminating oil contamination risks.

2. What maintenance is required?

Annual inspection of bearings and rotors
Biennial clearance verification
No fluid changes or filter replacements

3. Can it handle corrosive process gases?

Optional 316L stainless steel construction available for corrosive applications.

4. What's the expected service life?

7-10 years in typical industrial applications with proper maintenance.

5. Is cooling water required?

Standard models are air-cooled; water-cooled versions available for high-temperature environments.

6. How does the remote monitoring system work?

Standard 4-20mA outputs with optional IoT connectivity for real-time performance tracking and predictive maintenance.

7. Can it directly replace our existing water ring pumps?

Yes, with proper sizing - typically provides equivalent vacuum with 30-50% energy savings.

8. What safety features are included?

Vibration monitoring sensors
Thermal overload protection
Phase sequence monitoring
Emergency stop function

9. Is variable speed operation available?

Yes, VFD control options can reduce energy consumption by up to 40% at partial loads.

10. What warranty coverage is provided?

2 years on pump mechanical components, 1 year on electrical/control systems.

Conclusion

The LGB70 dry screw vacuum pump delivers a revolutionary oil-free solution for industrial vacuum applications, combining high performance with clean operation and smart monitoring capabilities. Its ability to replace traditional water ring and reciprocating pumps while reducing energy consumption and maintenance requirements makes it an ideal choice for modern manufacturing facilities.

For operations seeking to upgrade their vacuum systems with clean, efficient technology, the LGB70 offers significant operational advantages. Our vacuum specialists are available to provide application-specific recommendations and system integration support. Contact us today to discuss how the LGB70 can optimize your vacuum processes.

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