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138 For further information, visit www.norgren.com and use the new improved search function. If you cannot see the option you require please contact us. 3 SWITCHES AND SENSORS 1 2 3 p Port size Type Pressure range psi (bar) Switching pressure difference psi* (bar) Sealing Model lower range upper range 1/4 NPT Female -14 – 0 (-1 – 0) 2 (0.15) 3 (0.18) FPM 0880120000000000 – Flange -14 – 0 (-1 – 0) 2 (0.15) 3 (0.18) FPM 0881100000000000 1/4 NPT Female 3 – 30 (0.2 – 2) 2 (0.15) 4 (0.27 FPM 0880220000000000 – Flange 3 – 30 (0.2 – 2) 2 (0.15) 4 (0.27) NBR 0881200000000000 1/4 NPT Female 7 – 120 (0.5 – 8) 4 (0.2) 9 (0.65) NBR 0880320000000000 – Flange 7 – 120 (0.5 – 8) 4 (0.2) 9 (0.65) NBR 0881300000000000 1/4 NPT Female 15 – 230 (1 – 16) 4 (0.2) 13 (0.90) NBR 0880420000000000 – Flange 15 – 230 (1 – 16) 4 (0.2) 13 (0.90) NBR 0881400000000000 1/4 NPT Female 15 – 435 (1 – 30) 15 (1.0) 75 (5.0) NBR 0880620000000000 » Adjustable setpoint » Gold-plated contacts » Vibration resistant to 15 g » Microswitch approved by UL and CSA Technical Data Viscosity Up to 1000 mm 2 /s (±450 ssu). Repeatability + /- 3% for vacuum +/- 4% of final value (depending on regulating pressure) Electrical connection DIN 43650 Switching element Microswitch with gold plated contacts Degree of protection IP 65 Weight .4 lbs (0.2 kg) Materials Housing: aluminum Seals: NBR, FPM 'O'-ring: NBR Medium Neutral, gaseous and liquid fluids Operation Diaphragm Mounting position Optional Operating pressure Vac to 435 psi Over pressure 1150 psi Ambient temperature 14°F to 185°F (-10°C to 85°C) (NBR) 32°F to 175°F (0°C to 80°C) (FPM) Fluid temperature 14°F to 185°F (-10°C to 85°C) (NBR) 32°F to 175°F (0°C to 80°C) (FPM) Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C) Model numbers - pneumatic/lubrication applications 18D PNEUMATIC PRESSURE SWITCHES (DIAPHRAGM TYPE) VAC - 435 PSI Note: Switches are supplied with DIN 43650 mating connector. * Switching pressure difference (hysteresis) is not adjustable. Typical valves are shown. Caution: Observe switching range. Do not subject switch to maximum allowable pressure during normal operation. Even short pressure peaks must not exceed this value. More info and CAD available online at: norgren.com