Processing Magazine

High-Flow Direct Mount Valve Built for Long-Life Applications

April 26, 2010
The high flow solenoid valve product line provides new, cost-effective solutions for general-purpose valve actuator applications including water and sewage, pulp and paper, food and beverage, pharmaceutical, powder-dosing machines, powder transportation, process industry, and twin-tower air dryers. Compact in its design, the valve features a NAMUR mounting pattern and high-flow rates from 1.2 to 3.0 Cv. A spring return allows fail-safe operation in the event of a power loss, and a screened exhaust nut protects valve function during outdoor use. Additionally, the O-ring seal design increases sealing force at higher pressures and offers less breakaway resistance at lower pressures. With a long life expectancy of up to 5 million cycles, the high flow valve has the potential to reduce maintenance needs, according to the manufacturer. The high flow NAMUR valve is built with an anodized aluminum body and a stainless steel spool, as well as internal parts made of brass. It is designed for direct mounting in any position on a NAMUR interface. The valve operates from a pressure range of 30 – 150 psi. The valves are offered with class F DIN and Class H hazardous location coils, operating at fluid temperature ranging from 32 – 122 degrees F. Hazardous coil enclosures meet FM and CSA agency approvals for Class 1: Groups A – D and Class II: Groups E - G.