Two Stage 2XZ-2 Rotary Vane Vacuum Pump

• Bearings on both sides of the rotor.
• High efficiency.
• Low noise level.
• Easy servicing and operation.
• Combine high performance, low vibration, and low noise.
• Gas ballasting for solvent vapor removal.

The two most common types are rotary vane or diaphragm pumps – but what do these mean and what is the difference?

Rotary Vane Pumps

Rotary Vane pumps use moving vanes to move volumes of gas through the system and out of the outflow. The stages of operation are shown in the diagram below;

This mode of operation means that they require oil in the system, to lubricate the moving parts and to create a seal so the gases are isolated. As such Rotary Vane pumps do require more regular maintenance such as changing the oil. Many models feature a sight glass to quickly view the oil and gauge when it needs changing.

Rotary Vane pumps can achieve much lower vacuums than diaphragm pumps, so are often used in more demanding applications such as with glove boxes or freeze dryers.

Diaphragm Pumps

Diaphragm pumps are usually oil-free and low maintenance. They work by moving a flexible diaphragm which forces air in through one side and out the other by control valves, as shown below;

This operation does not require oil so there is less maintenance required. The diaphragm may need replacing annually or even less often depending on usage.

Diaphragm pumps do not achieve as low vacuums as Rotary Vane pumps but are a popular choice for everyday use with filtrations, desiccators, and aspiration of waste liquid in microbiology. More massive diaphragm pumps are also available to use with rotary evaporators or vacuum ovens.

Care should be taken when choosing a Diaphragm Pump on the diaphragm material – those with PTFE seals have better chemical resistance and can be used even when acidic or solvent vapors are present – they are often called “chemical duty” pumps. Some more basic models are only suitable for working with aqueous (water-based) vapors, these are commonly used for essential filtration work

Packaging
-Export plywood case or carton.
-Both neutral and customized packaging are available.
Shipping
-Usually, we ship the goods by International Express such as DHL, TNT, EMS, FedEx and UPS for small volume goods, and ship the big volume goods by air or ocean.

Guangzhou Fan Bo Lun Import and Export Trade CO., LTD.  Is collection research and development, production, sales, experimental instruments and equipment of private enterprise, with solid strength, reasonable prices, excellent service and many enterprises established long-term relations of cooperation. first-class highly professional team, technical team, facilities, and a meticulous quality control system, committed to being the respected leading enterprise in chemical instruments provide more efficient, energy saving. Good quality, customer trust, we always follow the principle of service.
Our flagship product
rotary evaporator, jacketed glass reactor, single layer glass reactor, circulating water vacuum pump, cooling chiller), vacuum drying oven (8l small lab  mini drying oven. vacuum drying oven ), blast drying oven, high-pressure reaction kettle, freeze dryer(lyophilizer), rotary vane vacuum pump, hydrothermal synthesis reactor, etc.

1. What's the minimum order quantity?
One set at present.
2. When can the goods be delivered?
2-5 working days after payment for regular models and 5-10 working days for a customized model.
3. Can you accept OEM or ODM?
Yes, we can.
4. How to choose suitable equipment?
Tell us your requirements, our professional sales will introduce you to the most suitable model.