Posted to News on 14th Nov 2019, 09:55
Versatile pressure switches operate with most liquids and gases
Aimed at industrial pressure switching applications for air, water, hydraulic fluid, other oil-based and liquid mediums, Variohm EuroSensor's EPS series includes three different environment-matched models, each competitively priced for pressure ranges from 0.3 to 350 bar.
For general-purpose, low-pressure switching, the EPS-01 series includes a sealed brass housing with an IP65 rating and features silver plated microswitch contacts, NBR diaphragm and a G 1/8 pressure port (with other port thread types on request). Two models offer pressure ranges 0.3-2bar and 1-10bar with switch-point setting via a set-screw.
For pressure switching tasks where the external environment requires a more resilient housing material, the EPS-02 series offers similar specifications and pressure range options as the EPS-01 series but is housed in a VA 1.4305 stainless steel. Additionally the EPS-02 offers a choice of silver or gold microswitch contacts. Both models offer a 100 VA switch breaking capacity with electrical connection via flat pins and a switch-back difference accuracy of under 10 per cent. With a generous 20 bar overpressure limit, design options available for the EPS-01 and EPS-02 include a Viton diaphragm where increased switching resilience is needed.
For higher pressure switching or for greater application flexibility, the EPS-03 series covers five model types as a spring loaded diaphragm design for pressures from 0.5 to 10bar or a spring loaded piston design for pressures to 350bar - with nitrile diaphragm/piston as standard or optional Viton on request. Generous working and overpressure limits provide safety and reliable use. A durable galvanised steel housing offers an IP65 rating and is complete with a PG9 electrical connection for switch breaking capacity that suits AC-12 and DC12 resistance loads or AC-14 and DC-13 inductive loads. Where lower switched voltages can be accommodated (42V), an M12x1 round connector is optionally available. With set-screw adjustment and switch back difference of 15-30 per cent, application suitability and price flexibility is safeguarded with silver-plated contact micro switches as standard or gold-plated contacts on request. Additionally, a wide choice of pressure ports covers G1/8, G1/4, M10x1 and M12x1.5.
Throughout the EPS range, media temperature range is -25 to +85degC, with higher temperatures on request, while reliability and performance is ensured with a mechanical life of over 1 million cycles and a switching frequency of 200/min.
Learn more about the EPS series industrial pressure switches at www.variohm.com.
