June 2019

HYDRAULICS Fluid care sampling kits from Hydac The condition of the fluid in systems is crucial for optimum machine performance. Hydac comments that it is committed to assisting companies in identifying the cause of any problems in their system through fluid analysis. The team in Hydac’s UK fluid care laboratory can assist you with concerns raised from your analysis and advise of measures that can be put in place to extend the lifetime of your system’s components and fluid. The company has recently introduced the new Hydac fluid care sampling kits. The new kit is designed to make sampling as easy as possible, all the equipment needed to take quality samples is included in a convenient and recyclable cardboard carry case. Every kit purchased includes basic oil analysis for 12 x 250ml samples. Hydac’s basic oil analysis package consists of: Microscopic contamination analysis Gravimetric content Particle distribution measurement Water content Conductivity Additional testing can be arranged in advanced or added once the initial results have been received. With Hydac’s experience and expertise, it can help identify further testing requirements or conditioning solutions if needed. Hydac added: “Oil sampling is essential to gain a better understanding of a system’s health, and our lab experts are on hand to guide you along the way, improving system uptime and maintenance.” www.fluidcarelab.hydac.com Atos has launched safety valves supplied with electric on-off monitoring of the spool or poppet position indicating the valve’s hydraulic status. The valves are TÜV-certified in accordance with the safety requirements of Machine Directive 2006/42/EC. They are available in two different execution: /FV with inductive position switch – reliable solution with double contact NO and NC /FI with inductive proximity sensor – compact & competitive solution with NO or NC contact Atos range of safety valves includes: Directional control valves, sizes 6 to 25 – with single and double solenoids ISO 7368 cartridge valves, standard and active execution – sizes 16 to 100 ISO 17209 screw in cartridge valves – sizes 3/4”-16UNF to 1 5/16”-12UNF Max pressure 350bar, flow up to 5000 l/min. Atos has also introduced new all-purpose ZE proportionals for open-loop electrohydraulic systems. Features include: Competitive price for high serial applications Threaded solenoid cURus certified ECP (Enhanced Corrosion Protection) to withstand > 200 h in salt spray Optional mobile connectors with IP67 protection Spools with linear, progressive or differential regulation Temperature range -20degC ÷ +70degC (-40degC ÷ +60degC for/BT low temperature execution) Sizes 06, 10 direct operated directional controls Size 06 direct operated pressure relief & reducing controls Atos comments that its ZE proportionals perform best if coupled with E-MI-AS digital plug-in drivers with infrared software setting of bias, scale, dither and linearisation. www.atos.com New safety valves and all-purpose ZE proportionals from Atos ABOVE: Hydac’s UK fluid care laboratory. BELOW: Hydac sampling box. 22 HYDRAULICS & PNEUMATICS June 2019 www.hpmag.co.uk