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

2 PSIG5000OB26 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.

5 Theassembly is non-electric, using only airor inert gas in the switch assembly consists of two compo-nents, a switch unit and a transducerunit. 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.

6 002 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).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).

7 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