Adjustable Pressure Switch simplifies setting of system pressures in the field. New from PVL is an adjustable pressure switch that will simplify the lives of engineers who need to tweak hydraulic, pneumatic or lubrication systems during set up, or who need to monitor system pressures on the fly. The innovative PSK pressure switch provides simple adjustment of system pressures, with two models covering the key ranges of 10-1 O0bar and I 00-36Obar. With its large adjusting knob, easy-to-read graduated pressure scale and fixed hysteresis, the PSK provides simple yet reliable adjustment of system pressure, and has been particularly designed to help engineers monitor and set minimum or maximum pressure in fluid circuits. Once the correct pressure has been established, the device can be locked off via a set-point fastening screw. Whilst the PSK is not intended to provide absolute accuracy, it will prove an immensely useful tool for adjustment in the field, and the accuracy available belies the simplicity of the adjustment mechanism, comments PVL's Steve Moorey. It would be invaluable for hydraulics engineers who need to set pressure relief valve switches, but who don't actually know the required pressures until they get out in the field. The PSK features an SPDT contact rated at 3A, 220V AC or 5A, 125V AC. For operation from 10-1 O0bar, the PSKI 00 features diaphragm execution, with a robust design that will survive over-pressure to 300bar. For operation from 100-36Obar, the PSK360 features piston execution, and will survive over-pressure to 600bar. Rugged and robust, the PSK adjustable pressure switch is constructed from anodised aluminium, and features an aluminium adjusting knob, with the whole construction sealed to 1P65. Mounting options include CETOP manifold or 1/4in BSP pipe fitting, affording high levels of mounting flexibility. Based on proven pressure switch technology, the highly reliable device offers a mechanical life in excess of one million operations. ____________________________________________________ For more information, contact... PVL Limited Unit 9, Lexden Lodge Industrial Estate, CROWBOROUGH TN6 2NQ. UK. Tel : +44(0) 1892 664499 Fax : +44(0) 1892 663690 Email : david.almond@pvl.co.uk Website : www.pvl.co.uk May 2004

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