Liquid Ring Vacuum Pump

Leveraging nearly two decades of industry experience from its core technical team, Boke Vacuum has developed corrosion protection solutions tailored to diverse operating scenarios and requirements.

1. Liquid ring vacuum pumps for medium and large gas flow adopt a fully covered sleeve design, which reduces contact between the shaft and process medium and extends shaft service life.

2. Corrosion occurring during liquid ring vacuum pump operation falls into four categories: chemical corrosion, galvanic corrosion, cavitation-corrosion synergy, and erosion corrosion. Drawing on years of experience, we apply a combined strategy of pump head material selection and sealing configuration to resist corrosion from inlet media. Available materials include cast iron, stainless steel, duplex stainless steel, titanium alloy, Hastelloy alloy, and PTFE lining for corrosion resistance. Our sealing options comprise packing seals, single cartridge and non-cartridge mechanical seals, double cartridge and non-cartridge mechanical seals, as well as dry gas seals. Based on our experience, we rationally combine materials and mechanical seal types to minimize medium-induced corrosion on the pump head and maximize the service life of liquid ring vacuum pumps.

 

Wastewater Treatment

As liquid ring vacuum pumps use water or other liquids as the working fluid, and an eccentric liquid ring formed by impeller agitation achieves gas sealing, compression and cooling, the working fluid may react with the pumped gas during operation and generate environmentally hazardous wastewater. Therefore, treatment of such wastewater is necessary.

Boke Vacuum can design and manufacture closed-loop liquid ring vacuum pump units for wastewater treatment according to customer requirements. The closed-loop unit consists of a liquid ring vacuum pump, gas-liquid separator, heat exchanger, frame, internal piping and base plate. The complete unit can be supplied as skid-mounted equipment to facilitate customer installation.

Introduction to Custom Liquid Ring Vacuum Systems by Boke Vacuum: The main pumps can be configured as standalone single units or in a 1-operating-1-standby arrangement, sharing working fluid circulation components such as heat exchangers and separators. The system integrates electrical instrumentation and automatic control, supporting remote DCS control. Functions include automatic working fluid makeup and drain, inlet and outlet pressure monitoring, exhaust temperature monitoring, working fluid circulation flow monitoring, and automatic regulation of inlet and outlet pressure. Unattended remote operation is available. Custom design can be implemented for materials, seals and flushing plans according to site operating conditions.

1. What are the flow rate, vacuum level and material options of your liquid ring vacuum pumps?

Liquid ring vacuum pumps of different models deliver different flow rates. You may refer to our product detail pages for each series for flow rate reference. The ultimate vacuum of the 2BE1 series liquid ring vacuum pumps can reach 33 mbar (A), while the 2BE3 series can achieve 160 mbar (A). Two-stage liquid ring vacuum pumps can reach an ultimate vacuum of 20 mbar (A). If you require a certain pumping capacity at a relatively low vacuum level, an atmospheric ejector can be additionally installed. Our available materials include cast iron, carbon steel, stainless steel, duplex stainless steel and titanium. Final selection is determined by the operating pressure, flow requirement, gas composition, inlet gas temperature and cooling water conditions of your working process.

2. What configurations are available for your liquid ring vacuum pumps and systems?

We can supply manual, semi-manual, automatic and semi-automatic operation configurations according to customer requirements. The specific unit configuration depends mainly on site operating conditions.

3. What circulation modes are available for your liquid ring vacuum pumps?

We can provide open circulation and closed circulation as requested. Closed circulation helps reduce the environmental burden from wastewater and conserve water resources.

4. What after-sales services do you provide?

We offer commissioning, maintenance, spare parts and other related services

5. What should I do if the vacuum level of the liquid ring vacuum pump fails to rise?

Low vacuum level of a liquid ring vacuum pump can be attributed to various factors. Possible causes: 1. Undersized pump; 2. Insufficient working fluid flow rate; 3. Excessively high working fluid temperature; 4. Erosion; 5. Minor system leakage; 6. Seal leakage. Solutions: 1. Replace the pump; 2. Increase working fluid flow rate; 3. Cool down the working fluid and increase its flow rate; 4. Replace worn components; 5. Repair leakage points; 6. Inspect the seals.

6. What should I do if the pumping capacity of the liquid ring vacuum pump is insufficient?

7. What should I do if solids/liquids enter the liquid ring vacuum pump through the inlet?

8. Install a filter device at the pump inlet; 2. Replace the working fluid regularly.

If you need liquid ring vacuum pumps, kindly share your operating conditions and we will provide pump selection support and quotation.

As one of the most professional liquid ring vacuum pump manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized liquid ring vacuum pump made in China here from our factory.