English copy version 2010/REV04 PISTON PRESSURE SWITCH DS-117 / DS-112

INTRODUCTION We are known throughout Europe as a leading specialist for piston pressure switches and provide our customers with a broad range of pressure switch designs. CONTENTS Page Technical Data Ordering information Terminal assignment Our pressure switches are distinguished by their durable precision, a broad spectrum of applications and uncompromising reliability. Function Many years of experience with material combinations, processing techniques and production tolerances enable us to meet the most varied requirements in a targeted and flexible manner. Reset differential pressure Dimensions...

TECHNICAL DATA design connection adjusting setting protection installation weight General information piston spring-loaded, mechanical stop prevents compression spring seizing due to excessive turning internal G 1/4 thread or flange surface adjusting screw cover or adjusting knurl fixing cover arbitrary basic type 0,27 kg ø 5 mm ø 4 mm 10-150 bar 5-70 bar 20-350 bar 20-240 bar 400 bar 200 bar 500 bar 500 bar - bar - bar 400 bar 400 bar deviation less than 1% (depending on operating range) - 40 °C to + 90 °C oil, oil-water-emulsion 10 bis 800 mm²/s ≥5x10 6 piston diameter switching pressure ranges...

pmax. standard pmax. special SS seal (several additional details separated by slash) switching pressure ranges Fixed switching points preset by manufacturer: - standard pressure rising / - falling if desired B F B/P90 = pipe installation = flange connection = with 90° elbow connection plate (p max. = 350 bar) adjusting knurl with scale gold on silver palladium brass housing Viton®fluoroelastomers special low-friction seal 4-pole 24 V lamp socket 4-pole socket with LED function display M12x1 (4-pole socket, axial or 90°-version on request) cable socket conforming to EN 175301-803 model type A,...

RESET DIFFERENTIAL PRESSURE 1. Standard seal (normal version): The hysteresis achieved during continuous operation is approx. 7-12 % of the final value at a set pressure of approx. 60-70 % of the max. adjustable switching pressure. Example: In the case of a DS-117-150 pressure switch with a pressure range of 10-150 bar, a hysteresis of approx. 8-15 bar is achieved at a set pressure of 100 bar. 2. Special low-friction seal (SS design) The hysteresis achieved during continuous operation is approx. 3-6 % of the final value at a set pressure of approx. 60-70 % of the max. adjustable switching pressure....

''The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. 1>The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. Required surface quality of unit support surface

The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. The .../B/P90 version is only available up to Pmax. 350 bar erhältlich. version “90°” version “axial” standard version

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