Your country is not included? Please visit our global website Language Optimum Efficiency and Reliability: Water Cooling for Process Gas Pumps KNF process pumps play a critical role in a variety of industrial operations. To maximize their functionality and extend their life, effective cooling methods can be essential in some applications. Effective cooling methods, such as water cooling, offer significant benefits, especially for diaphragm process pumps exposed to high compression temperatures, helping to protect against overheating and wear, and extending pump life. Advantages of Water Cooling in Large Process Pumps When compressing inert gases such as helium, adequate cooling of the process pumps in use is especially critical. These gases have a high polytropic exponent, a thermodynamic parameter that describes how the temperature of a gas changes when it is compressed or expanded without exchanging heat with the environment. Inert gases such as helium have particularly high exponents, resulting in significant heat generation during compression. Techniques such as water cooling are vital for ensuring the reliable performance and longevity of installed process pumps. For process pumps handling high discharge temperatures, such as KNF N 680.1.2 Ex, channels in the pump head allow for water cooling. The compression process of certain gases generates considerable heat, particularly near the pump's discharge valve where the pressure is highest. To cope with this, KNF process pumps such as the N 680.1.2 Ex are equipped with additional channels in the pump head. These allow water to be directed precisely to the source of the heat generation for targeted cooling. As water flows through the pump head, it dissipates heat, preventing overheating and maintaining optimal operating temperatures. Water flows through the pump head to the areas where compression heat is generated without direct contact with the pumped gas. Reliable Cooling Systems for Optimal Pump Performance By operating independently of the pumping process, the cooling system can provide optimal temperatures without affecting the performance of the process pump. The coolant passing through the pump head is completely isolated from the pumping chamber to prevent contact with the gas or mechanical components. This also maintains the reliability, gas tightness and, where required, explosion-proof characteristics of the installed process pump, ensuring its integrity and safety. Liquid pumps such as the KNF FP 400 maintain a continuous flow of water for efficient cooling of process pumps. Sustainable Heat Management Water cooling of large process pumps offers significant sustainability benefits. Compared to cooling methods that rely on synthetic refrigerants or coolants, using only water eliminates the need for these potentially harmful substances. In addition, water cooling can be designed as a closed-loop system to sustainably absorb and dissipate heat without the need for a continuous supply of fresh water. In dual-head pump systems, cooling systems can be connected in series, requiring only one cooling circuit to cool both pump heads. This provides high efficiency at low cost. Managing High Pressures Safely In hazardous areas, reliable cooling is critical. Water cooling plays a key role because it can dissipate significant compression heat, allowing higher pressures to be safely handled. This increases process performance while also significantly improving safety in demanding, potentially explosive environments. By maintaining optimal temperatures, water cooling helps prevent overheating and the risk of hazards, ensuring both operational efficiency and safety. Seamless Cooling and Tailored Customization KNF process pumps, such as the N 680.1.2 Ex and N 630.15 Ex, come standard with channels specifically designed for the integration of cooling systems to ensure effective temperature control. In addition, all KNF pumps can be extensively customized to meet the unique requirements of each application. From the choice of the right material and motor option to the appropriate mounting and connections, every detail can be customized to ensure seamless compatibility with the customer's system. Find out more about our many customizing options! Contact Us Do you want to find out more about our customized pump solutions and service opportunities? Get in touch with our local sales representatives.