02/0

7- 2014

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

2

www.koboldusa.com No responsibility taken for errors;

subject to change without prior notice.

Differential Pressure Flowmeters Model RCD

Durchfluss

Venturidüse

Faltenbalg

Magnet

Bewegung

V2 > V1 => P1

> P2

V1

Gehäuse

V2

P1

P1

P2

P2Housing

Flow

Force

Magnet

Bellows

Orifi ce

Description

The 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 Application

Machinery and Equipment Manufacturing

Chemical and Pharmaceutical Industries

Heavy Industry

Beverage and Food Industry

Technical Details

Measuring Accuracy: 3 % of Full Scale

Repeatability: 1 % of Full Scale

Process Temperature: Mechanical Display: 32...212 °F

Electronic Display: 32...176 °F

Ambient Temperature: Max. 176 °F

Max. Pressure: 360 PSIG

(RCD-11 Connection: 3" NPT)

580 PSIG (All Others)

Pressure Loss: Approx. 5 PSI

Minimum Pressure: 10 PSIG

Protection: IP 65

Materials 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 Ω

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. RangeWater*(GPM)

Orifi ceØ

(mm)

Model / Body MaterialConnection

BronzeStainless

Steel

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

..N4.. = ½" 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.. = ½" NPT

..N5.. = ¾" 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.. = ½" NPT

..N5.. = ¾" NPT

..N6.. = 1" NPT

1.0...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.. = ¾" 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.. =1½" 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 ½" NPT

..N9.. = 2" NPT

15...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 ceØ

(mm)

Model / Body MaterialConnection

BronzeStainless

Steel

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

..N4.. = ½" 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.. = ½" NPT

..N5.. = ¾" 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.. = ½" NPT

..N5.. = ¾" NPT

..N6.. = 1" NPT

5.0...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.. = ¾" 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.. =1½ 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 ½" NPT

..N9.. = 2" NPT

40...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 <0.95 or >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 V

DC807.007

Compact Electronic

Compact Electronic**

Indication Supply Output/Contacts

..0R = 2x Open Collector, PNP

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

DC

..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

4

www.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 ØMin. 5 X

Pipe Ø

RCD Head Loss vs. Flow Rate

RCD Installation Piping Requirements

In order to guarantee accurate readings, the RCD series

must be installed with a minimum of 10 diameters of

straight piping at the inlet and 5 diameters of straight

pipinig at the outlet. This straight piping must be the

same diameter as the fl owmeter fi ttings and should have

no bends, elbows, tees, or valves.

5

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

Differential Pressure Flowmeters Model RCD

7070

40403030

l/minl/min

2020

1010

5050

6060

117 91

116

A

AnschlussB connection

4.61" 3.58"

4.5

7"

Gewinde

51

D

B

Ø 44,5

thread

Ø 1.75"

2.01"

117 127

116

C

45,5

A

Gew

ind

e

B

S 1 S2

ADI-1P

OBOLD

thre

ad

4.61" 5.00"

4.5

7"

1.79"

C Connection A B

(mm)D Weight

1/2" NPT 7.52" 3.07" SW 27 5.63" 4.41 lb

3/4" NPT 7.52" 3.07" SW 41 5.63" 5.07 lb

1" NPT 7.52" 3.07" SW 41 5.63" 4.85 lb

1-1/2" NPT 8.11" 3.07" SW 55 6.22" 5.73 lb

2" NPT 8.03" 3.14" SW 70 6.14" 6.17 lb

3" NPT 8.70" 4.17" SW 100 6.81" 11.54 lb

C Connection A B

(mm)D Weight

1/2" NPT 7.52" 3.07" SW 27 5.63" 4.63 lb

3/4" NPT 7.52" 3.07" SW 41 5.63" 5.29 lb

1" NPT 7.52" 3.07" SW 41 5.63" 4.85 lb

1-1/2" NPT 8.11" 3.07" SW 55 6.22" 5.73 lb

2" NPT 8.03" 3.14" SW 70 6.14" 6.39 lb

3" NPT 8.70" 4.17" SW 100 6.81" 11.46 lb

C Connection A B

(mm)D Weight

1/2" NPT 7.52" 3.07" SW 27 5.63" 7.50 lb

3/4" NPT 7.52" 3.07" SW 41 5.63" 8.16 lb

1" NPT 7.52" 3.07" SW 41 5.63" 7.94 lb

1-1/2" NPT 8.11" 3.07" SW 55 6.22" 8.60 lb

2" NPT 8.03" 3.14" SW 70 6.14" 9.26 lb

3" NPT 8.70" 4.17" SW 100 6.81" 14.30 lb

RCD...C with Compact Electronics

RCD...K with ADI-Electronics

RCD...Z with Mechanical Indicator

Dimensions

6

www.koboldusa.com No responsibility taken for errors;

subject to change without prior notice.

Differential Pressure Flowmeters Model RCD

1. RCD-Z: Mechanical Indicator

2. RCD-C: Compact Electronics

2 PNP Switches 2 NPN Switches 4-20 mA, 1 PNP 4-20 mA, 1 NPN

3. RCD-K: Digital Display/Controller

Input Power: 100-230 Vac/dc 18-30 Vac/10-40 Vdc

Output: None 4-20 mA

Relays: 2 SPDT Relays Standard

Customer Name:________________________________________________

Company Name:________________________________________________

Phone:_________________________________________________________

Fax:___________________________________________________________

E-mail:_________________________________________________________

Date:__________________________________________________________

Please Fax to:KOBOLD Instruments Inc.US: 412-788-4890Canada: 514-428-8899

* Accurate process information is essential to ensure proper

operation. Please fi ll out form completely. Please retain the

completed form and submit it with your order.

General Conditions

1. Pressure: Maximum ____________ PSIG

2. Temperature: Maximum ____________ °F

Liquid Flow Applications

1. Liquid Type:___________________________________________

2. Normal Operating Temperature:_________________________°F

3. Viscosity at Normal Operating Temperature:________________

4. Specifi c Gravity at Normal Oper. Temp:____________________

5. Desired Measuring Range and Units:______________________

Note: Items 3 and 4 are not required for water fl ow.

Indicator Options

Flowmeter Options

1. Body Material:

2. Fitting Size:

3. Flow Direction:

Bronze with NBR Seal 316L SS with FKM Seal

1/2" NPT 3/4" NPT 1" NPT 1-1/2" NPT 2" NPT 3" NPT

Left to Right Right to Left Flow Up, Dial on Right Flow Up, Dial on Left

Flow Down, Dial on Right Flow Down, Dial on Left

Gas Flow Applications

1. Type of Gas:___________________________________________

2. Normal Operating Temperature:_________________________°F

3. Normal Pressure at Outlet Fitting:_________________________

4. Specifi c Gravity (for Gas Mixes Only):______________________

5. Desired Measuring Range and Units:______________________

Note: The calibration pressure required is the pressure that the

meter sees at its outlet fi tting.

Calibration Conditions (Accurate data is required for factory calibration to ensure accurate readings at normal operating conditions.)