Overall dimensions and technical information are provided solely for informative purposes and may be modified without notice “NAMUR” valves and solenoid valves Series 514 High Performance 1 Air distribution 1 | 254 Series 514 High Performance NAMUR valves are 5/2 and 4/2 valves and electrovalves, piloted electrically or pneumatically, utilised primarily to operate rotary actuators and wherever there is a NAMUR standard installation plan. The product is classified for use in potentially explosive atmospheres (Directive 2014/34/EU). NAMUR valves have been developed using the latest, technical design solutions which guarantee flexibility and an increased flow rate capacity exceeding that of traditional, spool valves. Innovative materials guarantee high performances also in critical environment conditions. Available NPT and BSPT connections. The solenoid valves are available with protection classes for zones 2-22, 1-21 solenoids Ex ec, Ex mb, Ex ia, international approvals IECEx, FM and CSA. Note: "Although accurately described, the 4/2 valve actually functions as a 3/2 normally closed valve and should be used as such." “NAMUR” interface dimensions: according to standard (VDI/VDE 3847 July 2003) Construction characteristics Body Aluminium Spacers Technopolymer Seals Nitrile rubber Springs Stainless Steel Operators Technopolymer Spools Steel Screws Zinc coated Steel / Stainless steel
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