Pneumatic Pressure Switches - okcc.com

1 BOX Q TRUMBULL, CT 06611 CT PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 1997 ALL RIGHTS RESERVED e-mail website Pressure SPECIFICATIONS SWITCH UNITPRESSURE TRANSDUCER UNITP olyester WithAdjustableRatedAluminumThreadedBrass 316 Brass Insert &&&AllRange(PSIG) SwitchSwitchBuna "N"Buna "N"Buna "N"Viton316 0 - 30" Hg (VAC)50OB36 AOB31 BKRV34A11 KRV34A21 KRV34A32 30" Hg (V) - 14 PSIG50OB26 AOB21 BKRV24A11 KRV24A21 KRV24A32 0 - 4 PSIG60OB46 AOB41 BKRD40A11 KRD40A71 KRD40A21 KRD40A42 0 - 9 PSIG60OB36 AOB31 BKRD30A11 KRD30A71 KRD30A21 KRD30A42 2 - 18 PSIG60OB26 AOB21 BKRD20A11 KRD20A71 KRD20A21 KRD20A42 2 - 18 PSIG100OB36 AOB31B KRE30A444 - 36 PSIG150OB26 AOB21 BKRE20A11 KRE20A71 KRE20A21 KRE20A42 KRE20A446 - 60 PSIG150OB16 AOB11 BKRE10A11 KRE10A71 KRE10A21 KRE10A42 KRE10A4410 - 100 PSIG200 OB16 AOB11 BKRF10A11 KRF10A71 KRF10A21 KRF10A42 KRF10A4420 - 200 PSIG400 OB16 AOB11 BKRG10A11 KRG10A71 KRG10A21 KRG10A42 KRG10A4430 - 300 PSIG450OB16 AOB11 BKRH10A11 KRH10A21 KRH10A42 KRH10A4440 - 400 PSIG500OB16 AOB11 BKRJ10A11 KRJ10A21 KRJ10A42 KRJ10A4460 - 600 PSIG2000OB26 AOB21B KRL20A21 KRL20A42_100 - 1000 PSIG2000OB16 AOB11B KRL10A21 KRL10A42 160 - 1650 PSIG5000OB26

2 AOB21B KRN20B21 KRN20B42 270 - 2700 PSIG5000OB16 AOB11B KRN10B21 KRN10B42 600 - 6000 PSIG9000OB16 AOB11B KRQ10B42 NON-ELECTRICP neumatic Pressure SwitchesDescriptionThe Pneumatic Pressure switch combinesa Pressure sensing element and a spoolvalve to produce a switching device withan adjustable setpoint. The assembly isnon-electric, using only air or inert gas inthe switch assembly consists of two components,a switch unit and a transducer unit. Theswitch unit contains a mechanically actu-ated, five ported spool valve which pro-vides the output signals. The transducerunit senses the Pressure of a wide varietyof liquids or gases and transmits a me-chanical movement, at the preset pressurelevel, to the switch Pneumatic Pressure switch ported four way valve is actuated bytransducer mechanical displacement whenpressure exceeds adjustable set point.

3 Shownwith optional barb connectors Pressure switch has gasketedenclosure. Adjusting nut sets Pressure at whichpneumatic valve is actuated. Shown withoptional barb connectors VALVE5 ported, 4 way10-32 threaded female connectionsOperating Pressure of 5 working ports vacuum to 100 psigWorking Fluid Clean Dry Air or In-ert GasAir Usage Leakage to atmosphereapproximately .002 SCFM at 100 psigCv .12 Flow Capacity SCFM at 100 psigPRESSURE TRANSDUCERW etted Materials See chartConnection 1/4" NPTR ange Vacuum to 6000 psigDeadband less than 15% of range (316 SSdiaphragm less than 25% of range)Repeatability 2% of rangeTEMPERATURE RATINGSA mbient-4 F to 122 FBuna-N-4 F to 180 FViton-4 F to 250 F316SS-50 F to 300 FPolyester-4 F to 130 FOrdering InformationA Pressure switch assembly consists of aswitch unit and a Pressure transducer Example.

4 OB46A/KRD40A32 Switch UnitTransducer UnitTo select an assembly refer to specifica-tions chart Determine the Pressure range Check that rated overrange pressurerating is Read across and select a switch unitwith the type of enclosure Continue across the same line and se-lect a transducer compatible with theliquid or gas Rated overange Pressure on KRF10A71 is 150 PSIG and on KRG10A71 is 300 PSIGR equest form OK-043 for more BOX Q TRUMBULL, CT 06611 CT PHONE (203) 261-6711 TOLL FREE PHONE (800) 533-3285 FAX (203) 261-8331 O'KEEFE CONTROLS CO. 1997 ALL RIGHTS RESERVED e-mail website Pneumatic temperature switch com-bines a temperature sensing element anda spool valve to produce a switchingdevice with an adjustable setpoint. Theassembly is non-electric, using only airor inert gas in the switch assembly consists of two compo-nents, a switch unit and a transducerunit.

5 The switch unit contains a me-chanically actuated, five ported spoolvalve which provides the output transducer unit senses the tempera-ture of a wide variety of liquids or gasesand transmits a mechanical movement,at the preset temperature, to the temperature switch with direct mounttransducer unit. Open switch unit Temperature SwitchesPneumatic temperature switch with capillary andbulb transducer unit. Enclosed switch unit VALVE5 ported, 4 way10-32 threaded female connectionsOperating Pressure of 5 working ports vacuum to 100 psigWorking Fluid Clean Dry Air or In-ert GasAir Usage Leakage to atmosphereapproximately .002 SCFM at 100 psigCv .12 Flow Capacity SCFM at 100 psigAmbient Temperature minus 4 Fto plus 122 FTEMPERATURE TRANSDUCERS ensor Materials Sensing bulb avail-able in copper or 316 SSDirect Mount Connection 1/2" NPTC apillary and Bulb Connection Fitsinto thermal well or union is 3/8" Range minus 60 F to plus510 FDeadband 8 F or lessOrdering InformationA temperature switch assembly consistsof a switch unit and a temperature trans-ducer Example:OB16A/OKF11A1 Open Frame6' Capillary (Cu)Switch UnitTransducer UnitRange 50-160 FTo select an assembly refer to specifi-cations chart Determine the adjustable tempera-ture range required (left column).

6 2. Check that rated overrange tempera-ture is sufficient for the Read across and select either an openframe or enclosed switch unit(OB16A or OB11B).4. Continue across the same line andselect the required direct mount orcapillary and bulb transducer NumbersRequest form OK-088 for more information.* C = ( F -32) X 5/9 **Rated overrange temperatures are limited as follows: For copper capillary units -550 F. For direct mount units -260 SPECIFICATIONSSWITCH UNITTEMPERATURE TRANSDUCER UNITA djustableRated**6' Capillary12' CapillaryOperatingOverrangeDirect MountAnd BulbAnd BulbRangeTemperatureOpenEnclosed F* F*SwitchSwitchCopper316 SSCopper316 SSCopper316 SS 30 - 60250OB16 AOB11 BOKB10A1 OKB10A4 OKB11A1 OKB11A4 OKB11A1 DOKB11A4D0 - 90300OB16 AOB11 BOKD10A1 OKD10A4 OKD11A1 OKD11A4 OKD11A1 DOKD11A4D50 - 160350OB16 AOB11 BOKF10A1 OKF10A4 OKF11A1 OKF11A4 OKF11A1 DOKF11A4D100 - 220450OB16 AOB11 BOKJ10A1 OKJ10A4 OKJ11A1 OKJ11A4 OKJ11A1 DOKJ11A4D160 - 260500OB16 AOB11 BOKL10A1 OKL10A4 OKL11A1 OKL11A4 OKL11A1 DOKL11A4D225 - 340600OB16 AOB11B OKN11A1 OKN11A4 OKN11A1 DOKN11A4D300 - 450700OB16 AOB11B OKT11A1 OKT11A4 OKT11A1 DOKT11A4D350 - 510800OB16 AOB11B OKU11A1 OKU11A4 OKU11A1 DOKU11A4D