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IC.PB.200.D1.02 / 520B2632 Produced by Danfoss Danfoss A/S, DK-6430 Nordborg, Denmark, Tel. +45 7488 2222, Fax +45 7488 5757, www.danfoss.com INDUSTRIAL AUTOMATION Selection Guide Solenoid valves MAKING MODERN LIVING POSSIBLE Making modern living possible The Danfoss Group is a leader in development and production of mechanical and electronic products and controls. Our products help to heat and cool homes and offices, refrigerate food and control production lines. In short, Danfoss contributes to the conveniences of modern life as well as to a safer and cleaner environment. Our wide product range goes beyond the product mentioned here, so be sure to pay our website www.danfoss.com a visit to explore our product line breadth. Industrial valves In general valves are usually a small but crucial part of a design, and not always easy to specify. But by working in partnership with Danfoss, you can get precisely the valve needed for your application as quickly and inexpensively as possible. Our range of solenoid valves are accompanied by externally and thermostatically operated valves to complete a high-quality programme. Temperature monitoring & control Danfoss offers you tailor-made solutions to even the toughest of applications, like the MBC block-type switch series. From controlling room temperature to measuring hot exhausts, you’ll find Danfoss components are trusted day and night to deliver accuracy and durability. Pressure monitoring & control Danfoss has been into industrial pressure applications for more than 50 years and today offers one of the widest switch and transmitter range of any manufacturer. Accurate, robust and built for long life, they perform flawlessly day after day, even under the harshest conditions. Pressure monitoring & control Temperature monitoring & control Industrial valves Matchmaking the easy way Creating Customer Value At Danfoss Industrial Automation, we combine uncompromising product quality and extreme reliability with a single-minded focus on customer needs. Danfoss expertise builds on more than 60 years of creating value for customers around the world. Our extensive product range includes best-in-class temperature controls, industrial valves, pressure switches and transmitters. This handy Selection Guide makes it easier than ever to find and order the Danfoss product that fits your needs – and to create value for your customers. Where to use Danfoss solenoid valves provide high quality balanced with cost efficiency, thus making them the first choice in a wide range of industrial applications. The solenoid valves shown in this guide represent the most commonly used products in our extensive range. Danfoss EV210B and EV250B valves are suitable for use in applications with either limited or no differential pressure, such as closed-loop circulating systems or tank-fed drain applications. EV220B valves use system pressure to open or close, and thus require a differential pressure drop across the valve of minimum 0.3 bar to operate. EV220B valves are therefore suitable for use in open- loop systems, such as irrigation and supply of tap water. EV225B are solenoid valves designed for use with steam at temperatures up to 185 °C. The products chosen for this guide are a small selection of the total Danfoss valve range, which includes: • Normally open valves • High pressure valves • Externally operated valves • Thermostatically operated valves for control of cooling and heating • Stainless steel valves for use with aggressive media • Flange valves up to 4 inches • Proportional control valves • 3-way valves • A wide variety of seal materials Technology Danfoss solenoid valves are available as direct-operated (EV210B), servo-operated (EV220B and EV225B) and assisted lift (EV250B) and are suitable for use with media with limited dirt content - such as potable water, gas or vapour. Danfoss solenoid valve features include: • Limitation of liquid hammer effects which is achieved by optimising the shape of the diaphragm to provide a controlled closing action. • Integrated self cleaning mesh filter in EV220 15-50 range providing resistance to dirt contamination. • Unique Armature design in EV210B direct acting valves to prevent sticking caused by particulate contamination and aid flushing of contaminants from within the armature tube. • Enhanced design of EPDM diaphragms to extend the temperature range capability across the range -30 °C to +140 °C. The valves are therefore suitable for both low pressure steam and Glycol coolant applications. • A wide range of Solenoid Coil voltages are available in Ingress Protection grades IP65 and IP67, enabling installation in wet and aggressive environments. • Steam Valve EV225B employs a innovative PTFE ‘floating disk’ diaphragm design which not only provides high temperature capability (185 °C) but also a good resistance to surface adhesion. Due to the highly corrosive nature of steam the valve body is constructed in DZR Brass with an AISI 316 stainless steel valve seat which provides long life and superior sealing integrity. Installation Solenoid valves should be mounted in a horizontal orientation with the coil positioned above the valve body. While mounting valves with coils in other positions is possible, special care must be taken to ensure that there are no contaminants in the medium. For further information, please contact your local Danfoss sales office for a copy of the handy guide “How to Use Solenoid Valves”. Maintenance Virtually maintenance free, Danfoss solenoid valves are designed to provide years of reliable service. Should the equalising orifice of servo-operated valves become blocked by dirt build-up, this can easily be removed and cleaned with compressed air. Should the same thing happen with direct-operated valves, simply dismount the armature and clean the inner parts of the valve. Spare parts kits are available for most valve types. The extensive, worldwide network of Danfoss offices and distributor partners provides easy access to Danfoss products, coils, valve bodies, parts and accessories.
