Vacuum pumps are essential equipment in many industries such as food processing, pharmaceuticals, and electronics. To optimize operating costs, businesses need to select high-quality vacuum pumps that offer stable performance, energy efficiency, and long service life.

With more than 20 years of experience supplying world-leading vacuum pump brands such as Travaini (Italy) and Atlas Copco (Belgium), Tân Long provides in-depth technical consultation to help customers choose the most suitable and efficient vacuum solutions for their applications.

Vacuum Pump Overheating? Causes and Solutions

Main Causes of Vacuum Pump Overheating

• Insufficient or poor-quality oil: Inadequate oil level or incorrect oil type increases friction, causing the pump to overheat rapidly.
• Faulty temperature sensors or control systems: Malfunctioning sensors or unstable controls may allow temperature to rise excessively while the pump continues running.
• Damaged thermostat valve or oil separator: Component failure can disrupt proper temperature regulation.
• Inefficient cooling system: Dust-clogged or jammed cooling fans, or insufficient water flow in liquid-cooled systems, can lead to overheating.
• Clogged oil filters: Blocked oil filters reduce lubrication and cooling of bearings, screws (in screw vacuum pumps), vanes, and other rotating parts.
• Overloaded operation: Continuous operation at vacuum levels beyond recommended limits causes abnormal heat buildup.
• Mechanical wear or damage: Worn vanes or damaged bearings increase friction and operating temperature.

Corrective Actions

• Regular oil inspection and replacement: Maintain proper oil level and use specialized vacuum pump oil as recommended.
• Clean or replace filters: Regularly service oil filters, inlet filters, and oil separators.
• Check the cooling system: Ensure cooling fans operate properly; for liquid ring pumps, optimize cooling water flow rate and temperature.
• Inspect and replace sensors, thermostat valves, membranes, and related components if any signs of malfunction are detected.

Tips to Minimize Vacuum Pump Operating Costs

Choose Energy-Efficient Technologies

• VSD+ Technology (Atlas Copco GHS VSD+): Variable Speed Drive automatically adjusts pump speed according to actual demand. The pump consumes power only when load varies and switches to standby mode when no vacuum is required, significantly reducing energy consumption compared to fixed-speed pumps.
• Optimized Design (Travaini TRMX): An advanced design that increases efficiency by approximately 10% and reduces sealing liquid consumption by up to 40%, helping optimize operating costs for liquid ring vacuum pumps.

Regular Maintenance & Genuine Spare Parts

• Timely oil and filter replacement: Use genuine spare parts (oil filters, inlet filters, oil separators, and vacuum oil) and follow manufacturer-recommended service intervals based on actual operating conditions (standard, medium, or harsh environments). Proper maintenance extends pump life, reduces downtime, and significantly lowers repair and operational costs.
• Leak inspection: Regularly check joints, pipelines, gaskets, and seals to ensure system tightness, preventing continuous compensating operation that wastes energy.

How to Reduce Noise in Vacuum Pump Systems

Excessive noise from vacuum pumps is not only disruptive but also a sign of abnormal operation. Consider the following solutions:

• Install an Anti-Cavitation Valve (for liquid ring vacuum pumps):
  This is the most effective solution. Installing the valve helps eliminate noise caused by vaporization of sealing water, which creates bubbles that collide with the impeller—leading to noise, vibration, reduced efficiency, and shorter pump lifespan.
• Optimize installation: Mount the pump on a flat surface and use vibration isolators or specialized rubber pads to absorb vibrations and reduce structure-borne noise.
• Use soundproof enclosures: A comprehensive solution—enclosing the pump with acoustic insulation effectively absorbs sound waves, ideal for noise-sensitive environments.
• Regular maintenance: Mechanical noise is often caused by worn components (vanes, bearings) or imbalance. Periodic inspection and replacement of worn parts are critical.

Maximizing Capacity: Best Practices for Efficient Vacuum Pump Operation

Standard Operating Procedures

• Pre-start inspection: Check oil level, power supply, and pipeline tightness to prevent leaks and efficiency loss.
• Startup and monitoring: Start the pump, open the suction valve, and monitor vacuum pressure and operating temperature.

Proper Pump Sizing Matters

• Undersized pumps: Continuous operation, frequent overload, higher energy consumption, and reduced service life.
• Oversized pumps: Higher initial investment and unnecessary energy waste at low demand.

Tân Long provides optimized solutions tailored to each application—from Travaini liquid ring vacuum pumps (TRS, TRM, TRMX) for heavy-duty environments to Atlas Copco dry vacuum pumps for food and pharmaceutical industries requiring clean, oil-free vacuum.

Conclusion

To ensure maximum efficiency, durability, and energy savings, choosing a reliable supplier is crucial. Tân Long is proud to be the official distributor of world-leading vacuum pump brands such as Travaini (Italy) and Atlas Copco (Belgium), committed to delivering comprehensive vacuum solutions with superior quality and professional maintenance services.

TÂN LONG ENGINEERING SOLUTIONS CO., LTD
Hotline: 0909 091 789
Website: www.tanlongvietnam.com
Email: sales@tanlongvietnam.com

Head Office: 146/18 Nguyen Huu Tho, Nha Be District, Ho Chi Minh City
Representative Office: 10th Floor, TRICO Building – 548 Nguyen Van Cu, Bo De Ward, Hanoi
Factory: 39 Ngo Quang Tham, Hiep Phuoc, Ho Chi Minh City