Kobold RCD Differential

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    RCD

    Measuring Ranges: 0.2...0.88 to 100...600 GPM (Water) 0.3...3.0 to 250...1650 SCFM (Air)

    Accuracy: 3% of Full Scale

    Max. Pressure: 580 PSIG

    1/2" to 3" Line Sizes

    Materials: Bronze and 316L Stainless Steel

    Mechanical Indicator, Digital Indicator, Transmitters, and Switches Available

    Custom Calibrations for Density and Viscosity

    KOBOLD companies worldwide:

    ARGENTINA, AUSTRIA, BELGIUM, BULGARIA, CANADA, CHILE, CHINA, COLOMBIA, CZECH REPUBLIC,EGYPT, FRANCE, GERMANY, GREAT BRITAIN, HUNGARY, INDIA, INDONESIA, ITALY, MALAYSIA, MEXICO,NETHERLANDS, PERU, POLAND, ROMANIA, SINGAPORE, SOUTH KOREA, SPAIN, SWITZERLAND, TAIWAN, THAILAND, TUNISIA, TURKEY, USA, VIETNAM

    KOBOLD Instruments, Inc.1801 Parkway View DrivePittsburgh, PA 15205

    Main Offi ce: 1.800.998.1020

    1.412.788.4890 info@koboldusa.com www.koboldusa.com

    measuring

    monitoring

    analyzing

    Differential Pressure Flowmetersfor Liquids or Gases

  • 2www.koboldusa.com No responsibility taken for errors;

    subject to change without prior notice.

    Differential Pressure Flowmeters Model RCD

    Durchfluss

    Venturidse

    Faltenbalg

    Magnet

    Bewegung

    V2 > V1 => P1 > P2

    V1

    Gehuse

    V2

    P1

    P1

    P2

    P2Housing

    Flow

    Force

    Magnet

    Bellows

    Orifi ce

    DescriptionThe RCD series differential pressure fl owmeter measures fl ows of liquids and compressed gases using the orifi ce principle. The orifi ce, located in the fl ow body, generates a differential pressure which varies with the rate of fl ow. The differential pressure is applied to a measuring bellows. This is then linked either to a mechanical indicator or a Hall effect sensor, which is input to a compact or full featured electronic display and controller. This unique design, using a single measuring bellows, enables the accuracy to be unaffected by fl uctuations in pressure. The meter movement is a single fulcrum lever design, with a minimal number of wear components, that is simple and reliable. It is available with bronze or 316L stainless steel bodies ranging in size from 1/2" NPT to 3" NPT. The various electronic displays and control units offer a variety of options such as digital or bargraph displays, adjustable switches, and fl ow transmitters. Special scales are available for all media at any pressure and any temperature.

    Areas of ApplicationMachinery and Equipment ManufacturingChemical and Pharmaceutical IndustriesHeavy IndustryBeverage and Food Industry

    Technical Details

    Measuring Accuracy: 3 % of Full ScaleRepeatability: 1 % of Full ScaleProcess Temperature: Mechanical Display: 32...212 F Electronic Display: 32...176 FAmbient Temperature: Max. 176 FMax. Pressure: 360 PSIG (RCD-11 Connection: 3" NPT) 580 PSIG (All Others)Pressure Loss: Approx. 5 PSIMinimum Pressure: 10 PSIGProtection: IP 65Materials Display Case: Cast Aluminum Front Cover: Polycarbonate Body: RCD-x1..: Bronze RCD-x2..: 316L Stainless Steel Differential Pressure Housing: RCD-x1..: Bronze RCD-x2..: 316L Stainless Steel Pressure Meas. Cell: 316L Stainless Steel Orifi ce: 316L Stainless Steel Seals: RCD-x1..: NBR RCD-x2..: FKM

    Display/Electronics:

    Mechanical Pointer Indicator: RCD-Z Display: 270 Option: Special Scales for Other Gases and Liquids. Please Specify Media, Density, Viscosity, Operating Pressure and Temperature Compact Electronics: RCD-C Display: 3-Digit LED Analog Output: 4...20 mA Adjustable, Max. 500 Switching Outputs: 1 (2) Semiconductor PNP or NPN, Factory Set Contact Operation: N/C / N/O Contact Programmable Setting: Via 2 Buttons Supply: 24 VDC 20%, 3-wire, Approx. 100 mA Electrical Conn.: Plug Connector M12 x 1 ADI Electronics: RCD-K Display: Bar Graph and 5-Digit Digital Display Analog Output: 4...20 mA, 0-10 VDC 2 Switching Outputs: Relay/Changeover Contact, Max. 250 VAC/5 A Resistive Load, Max. 30 VDC / 5 A Setting: Via 4 Buttons Supply: 100 ... 240 VAC 10 % or 18 ... 30VAC / 10 ... 40 VDC Electr. Connection: Pluggable Terminal Block Via Cable Gland

  • 3 No responsibility taken for errors; www.koboldusa.comsubject to change without prior notice.

    Differential Pressure Flowmeters Model RCD

    Order Details for Liquids: (Example: RCD 1106G N5 C34P)Meas. Range

    Water*(GPM)

    Orifi ce

    (mm)

    Model / Body MaterialConnection

    BronzeStainless

    Steel

    0.2...0.88 2.80 RCD 1195G.. RCD 1295G..

    ..N4.. = " NPT

    0.2...1.1 3.15 RCD 1100G.. RCD 1200G..0.2...1.3 3.50 RCD 1190G.. RCD 1290G..0.3...1.8 4.00 RCD 1191G.. RCD 1291G..0.3..2.2 4.50 RCD 1101G.. RCD 1201G..0.3...2.8 5.00 RCD 1192G.. RCD 1292G..0.5...3.5 5.60 RCD 1102G.. RCD 1202G..

    ..N4.. = " NPT

    ..N5.. = " NPT0.5...4.4 6.30 RCD 1103G.. RCD 1203G..1.0...5.6 7.10 RCD 1104G.. RCD 1204G..1.0...7.0 8.00 RCD 1106G.. RCD 1206G.. ..N4.. = " NPT

    ..N5.. = " NPT

    ..N6.. = 1" NPT1.0...9.0 9.00 RCD 1109G.. RCD 1209G..2.0...11 10.00 RCD 1110G.. RCD 1210G..2.0...15 11.20 RCD 1114G.. RCD 1214G..

    ..N5.. = " NPT

    ..N6.. = 1" NPT3.0...17 12.50 RCD 1115G.. RCD 1215G..3.0...22 14.00 RCD 1116G.. RCD 1216G..4.0...30 16.00 RCD 1117G.. RCD 1217G..

    ..N6.. = 1" NPT

    ..N8.. =1" NPT5.0...35 17.50 RCD 1125G.. RCD 1225G..5.0...44 19.20 RCD 1130G.. RCD 1230G10...70 26.00 RCD 1135G.. RCD 1235G..

    ..N8.. = 1 " NPT

    ..N9.. = 2" NPT15...90 28.00 RCD 1137G.. RCD 1237G..

    20...110 31.00 RCD 1139G.. RCD 1239G..20...140 33.50 RCD 1141G.. RCD 1241G..30...180 40.00 RCD 1145G.. RCD 1245G.. ..N9.. = 2" NPT

    ..NB.. = 3" NPT30...240 43.50 RCD 1150G.. RCD 1250G..30...280 51.00 RCD 1155G.. RCD 1255G..

    ..NB.. = 3" NPT50...400 60.00 RCD 1160G.. RCD 1260G..100...600 67.00 RCD 1165G.. RCD 1265G..

    Order Details for Gases: (Example: RCD 1106S N5 C34P)

    Meas. RangeAir*

    (SCFM)

    Orifi ce

    (mm)

    Model / Body MaterialConnection

    BronzeStainless

    Steel

    0.3...3.0 2.80 RCD 1195S.. RCD 1295S..

    ..N4.. = " NPT

    0.5...4.0 3.15 RCD 1100S.. RCD 1200S..0.5...5.0 3.50 RCD 1190S.. RCD 1290S..1.0...6.5 4.00 RCD 1191S.. RCD 1291S..1.0...8.0 4.50 RCD 1101S.. RCD 1201S..1.0...10 5.00 RCD 1192S.. RCD 1292S..2.0...12 5.60 RCD 1102S.. RCD 1202S..

    ..N4.. = " NPT

    ..N5.. = " NPT2.0...16 6.30 RCD 1103S.. RCD 1203S..3.0...20 7.10 RCD 1104S.. RCD 1204S..3.0...25 8.00 RCD 1106S.. RCD 1206S.. ..N4.. = " NPT

    ..N5.. = " NPT

    ..N6.. = 1" NPT5.0...33 9.00 RCD 1109S.. RCD 1209S..5.0...40 10.00 RCD 1110S.. RCD 1210S..7.0...45 11.20 RCD 1114S.. RCD 1214S..

    ..N5.. = " NPT

    ..N6.. = 1" NPT10...55 12.50 RCD 1115S.. RCD 1215S..10....70 14.00 RCD 1116S.. RCD 1216S..15...95 16.00 RCD 1117S.. RCD 1217S..

    ..N6.. = 1" NPT

    ..N8.. =1 NPT20...110 17.50 RCD 1125S.. RCD 1225S..25...130 19.20 RCD 1130S.. RCD 1230S..30...220 26.00 RCD 1135S.. RCD 1235S..

    ..N8.. = 1 " NPT

    ..N9.. = 2" NPT40...300 28.00 RCD 1137S.. RCD 1237S..50...380 31.00 RCD 1139S.. RCD 1239S..50...410 33.50 RCD 1141S.. RCD 1241S..

    100...540 40.00 RCD 1145S.. RCD 1245S.. ..N9.. = 2" NPT ..NB.. = 3" NPT100...700 43.50 RCD 1150S.. RCD 1250S..

    125...800 51.00 RCD 1155S.. RCD 1255S....NB.. = 3" NPT200...1200 60.00 RCD 1160S.. RCD 1260S..

    250...1650 67.00 RCD 1165S.. RCD 1265S..

    Indicator Options Calibration

    Mechanical Pointer Indication Calibration for S.G other than Water-C

    Location of Indi- (Required if S.G. is 1.05)Indication Flow Direction cation Calibration for Viscous Liquids

    -V(Required if S.G. is >10 cSt)..L = Left

    ..L.. = From Left..R = Right Note for Liquids: Measuring ranges are listed for water. Calibrations

    ..Z.. = Pointer Indicator, 270 ..R.. = From Right for S.G. and/or viscosity may result in a slightly different fi nal calibrated ..T = Top measuring range/fi tting size. Consult the factory to determine the

    ..B.. = From Bottom calibrated range/fi tting size for the specifi ed operating conditions...B = Bottom

    Note for Gases: Ranges are listed for air 0 PSIG at 70 F. Calibration Full Size Display/Controller** for compressed gases will result in a different fi nal calibrated measuring

    range and/or fi tting size. Consult the factory to determine the calibrated Indication Power Supply Output Switches

    range/fi tting size for the specifi ed operating conditions.

    ..K.. = Bargraph/ ..0.. = 100-230 V ..0.. = NoneAC/DC Digital Accessory..3.. = 18-30 V ..2 = 2 SPDT Relays LED AC, ..4.. = 4-20 mA, Mating Micro-DC plug with 6 ft. Cable for 10-40 V Display DC 0-10 VDC 807.007 Compact Electronic

    Compact Electronic**

    Indication Supply Output/Contacts

    ..0R = 2x Open Collector, PNP

    ..0M = 2x Open Collector, NPN..C.. = Digital ..3.. = 24 VDC

    ..4P = 4-20 mA, 1x Open Collector, PNP

    ..4N = 4-20 mA; 1x Open Collector, NPN

    * See Calibration Table above for Details about other Liquids and Gases.** Please Specify Flow Direction in the Order (Except from Top to Bottom)

    Order Details: Continued for Both Liquids and Gases

  • 4www.koboldusa.com No responsibility taken for errors;

    subject to change without prior notice.

    Differential Pressure Flowmeters Model RCD

    Net Pressure Drop (PSI)

    Across Meter

    Percent of Rated Flow

    Min. 10 X Pipe Min. 5 X Pipe

    RCD Head Loss vs. Flow Rate

    RCD Installation Piping Requirements

    In order to guarantee accurate readings, the RCD series mu