KNF Diaphragm Pump Technology a Key Component in Coffee Machines

Diaphragm Gas Pumps Essential for Optimal Milk Frothing and Dispensing

Coffee machines have continued to evolve, offering more options than ever before. New super automatic machines test the limits of what kinds of drinks are possible while also allowing for placement in just about any environment. Many of these machines are responsible for creating hundreds, or even thousands, of cups of coffee every day. Most, if not all, of these machines need to froth or dispense milk in some capacity.

Many coffee machines have some sort of apparatus for frothing milk. Typically, these systems combine steam and induced air into a vessel containing the milk until it is at the correct temperature and consistency. Even for drinks that don’t require frothing, machines still need to be able to properly transport and add milk to drinks in appropriate amounts. 

Strict Requirements for Coffee Machine Components

While performance is important, it is also critical that pumps in coffee machines are made with appropriate materials. This is especially true of components that are in direct contact with food or beverages. Use of food grade materials is often required in beverage applications, and coffee machines are no exception. The pumps must also be reliable to maintain consistent and continuous operations.

NMP 830, NPK 04 are Strong Choices for Coffee Machines

KNF’s NMP 830 is a customizable diaphragm gas pump with proven success in coffee machine applications. It offers a maximum flow rate of 3.1 l/min with maximum pressure of 1.4 bar (rel.). It is available with a PTFE coated diaphragm, making it appropriate for use in food and beverage applications. The NMP 830 offers quiet operation, excellent reliability and provides the long service life demanded by coffee machines.

For milk dispensing operations, the NPK 04 is an outstanding option available with a PTFE piston sealing. It delivers a maximum flow rate of 3.3 l/min while offering maximum pressure of 2.8 bar (rel.). This NSF certified pump offers optimal performance and excellent reliability in compact size. Its contamination free transfer ensures that there is no unwanted mixing. The NPK 04 is available with a variety of customization options.