HOUSINGS FOR OPEN / CLOSED ROTATIVE VALVE POSITION INDICATION IN THE FOLLOWING SERIES:
Housing with visible valve position indicator with GO-SWITCH sensors and terminal board mounted inside. Certification accordingly to NEMA 4, 4X (safe area), 7 and 9 (hazardous area)
Housing designed to allow the max. space, time and costs saving, particularly suitable for the use with the following field BUS:
Housing with visible valve position indicator with possibility of inside mounting of GO-SWITCH type, mechanical type, inductive type and reed type sensors, the whole complete with terminal board. Explosion-proof certification accordingly to CENELEC / ATEX Norms (EEX-d IIC T5/T6 - IP66)
Here are listed the available options or the certifications which can be required for special applications. The safety requirements and the machinery requirements on which the limit switch must be used, or the type of the operation environments, play a specific role in the determination of the type of necessary certification. The Corporations which have certified the products are listed as follows:
Underwriters Laboratories (UL)
Mine Safety and Health Administration (MSHA)
Factory Mutual (FM)
Canadian Standard Association (CSA)
Centro Elettronico Sperimentale Italiano for certifications in compliance with European norms
NEMA - for the definition of industrial standard for U.S.A.
CENELEC / ATEX - for the definition of industrial standards for Europe
CE - (Comunità Europea - European Community) it certifies that the equipment meet the technical requirements of European Community. The approval is defined accordingly to specific norms.