General Specifications

Transcription

1 General Specifications Model RAGK Rotameter This type of Rotameter is designed for measurement of liquids and gases. The conical glass metering tube has a free rotating float. This float is mounted in a vertical pipeline with flow direction upwards. The flow is indicated by the top of the float and can be read from the standard scale on the metering tube or from a connected scale. When the process conditions are changed the scale needs to be replaced by a new one of which the values should be calculated. FEATURES Large selection of measuring ranges High accuracy by free rotating float even at low flow rates Low pressure loss Visual check of the medium Non-powered local indication Large selection of scales Optional built-in valve Exact scale calculation at changed process conditions according to VDE/VDI guidelines 3513 with the use of the flow table (option /PT) STANDARD SPECIFICATIONS Measurable flow rates - Water (20 C) : l/h to 600 l/h - Air (20 C ; 1 bar abs.) : 0.2 l/h to l/h Measuring range : 10:1 (20:1) Metering tubes : M3; K6; M6; K7; M7 Accuracy Metering Length Accuracy acc. tube VDE/VDI 3513 Bl.2 K 75 mm 4 (für ball 6) M 150 mm 2.5 Max. temperature - Standard : 100 C - with option /MV : 130 C (not for PP Rotameter) Max. pressure : 16 bar Material process connection - Inner thread : PP or (for optional controller: brass or ) - Cutting ring : or steel - Nozzle : ; steel - Swageloc-Connection : Holder material : Polypropylene; (gaskets Buna; Viton) Design (valve) : with or without optional built-in valve Length approx. Weight : 90 mm; 165 mm or 175 mm : depending on design 0.3 to 1.2 kg (without footstand and without controller) YOKOGAWA ROTA YOKOGAWA 3rd edition

2 2 TECHNICAL SPECIFICATIONS OF OPTIONS LIMIT SWITCH (OPTIONCODE: /GI1 TO /GI4) (Not for metering tube M3. For floats of Mumetal or PVDF with an Fe-core only and Qmin > l/h water or 0.3 l/h air) Type : Bistable inductive ring initiator acc. DIN (NAMUR) Power supply : 4.5 V to 13 V DC Consumption : For floats below ring initiator: < 1mA over ring initiator: > 2,2 ma Temperature range : -25 C to +70 C Protection : IP 67 acc. DIN Electrical connection : 1 x 0.14 mm 2, with shielding 0.4 mm 2 ; 2 m long max. capacity of the connection < 200 µf POWER SUPPLY FOR LIMIT SWITCHES (OPTION CODE: /WXX) Type : Transistor relay acc. DIN (NAMUR) Power supply : 230 V AC + 10%/-15%, 50/60 Hz (/W2A,/W2B) 24 V DC ± 20% (/W4A,/W4B) Relay output : 1 potential-free changeover contact (/W2A, /W4A) 2 potential-free changeover contacts (/W2B, /W4B) Switching capacity : Max. 250 V AC; max. 2 A Control circuit Entity parameters : Intrinsically safe [EEx ia] IIC : acc. certificate of conformity PTB Nr. Ex-94.C2086 CONTROLLER (OPTIONCODE: /R1 TO /R4) (not for metering tube M3) Differential pressure controller for a constant flow at fluctuations of the process pressure. Controller /R1 and /R2 for liquids with variable inlet or outlet pressure and for gases with variable inlet pressure and constant back pressure. Controller /R3 and /R4 for gases with fluctuations of the back pressure. Max. liquid flow : 100 l/h Max. gas flow : 3000 l/h Max. pressure : 40 bar Recommended differential pressure : > 400 mbar Materials Housing Membrane Springs CrNi-Stahl PTFE CrNi steel Brass Buna CrNi steel Control characteristics l/h air at 20 C, bar abs. : See diagram The curves V1 to V6 indicate how the flow depends on the inlet pressure for different valve settings. The back pressure at the outlet (ambient pressure) is 1 bar. LIMIT SWITCH (OPTIONCODE: /GM1 AND /GM2) (For metering tube M3 and floats with magnet only) Type : Reed conact with bistable switching Max. switching voltage : 230 V Max. switching current : 0,6 A Max. switching capacity : 12 VA or 12 W Temperature range : -10 C to +70 C Protection : IP 65 Internal capacity : 0 nf Internal inductivity : 0 mh Electrical connection : LIYY 2x 0,34; 1m long Weight : 35 g Inlet pressure Control characteristics diagram

3 3 MODEL SPECIFICATIONS Process connection Model Code proces connection Material Material Design Metering Inner Cutting Nozzle Swage- process holder tube lenght/ thread ring loc connection (valve) diam. Code Code Code Code Code Code Code Code Code 1/4 inch RAGK41 TO PP 1) PP RAGK53 CO SS;ST PP 6 mm RAGK53 PO SS PP RAGK53 WO SS PP 8 mm RAGK54 CO PO SS;ST PP K6; K7; RAGK54 WO SS PP M6; M7 10 mm RAGK55 CO SS;ST PP RAGK55 WO SS PP 12 mm RAGK56 CO SS;ST PP 1/4 inch RAGK41 TO SS SS 6 mm RAGK53 CO PO WO SS SS 8 mm RAGK54 CO PO WO SS SS 10 mm RAGK55 CO WO SS SS 12 mm RAGK56 CO WO SS SS 3/8 inch RAGK42 TO PP PP RAGK42 PO ST PP 10 mm RAGK55 CO SS;ST PP 12 mm RAGK56 CO SS;ST PP 3/8 inch RAGK42 TO SS SS 10 mm RAGK55 CO SS SS 12 mm RAGK56 CO SS SS Proces conn.: Inner thread NPT... -TO Cutting ring... -CO Nozzle... -PO Swageloc-connection... -WO Material process connection: Polypropylene... PP 1) SS Steel... ST Material holder: Polypropylene... -PP SS Design: without valve... NNN For tube metering K6, K7, M6, M7 with valve in gasket valve pos. input Buna Silver... SAE input Viton Silver... SBE output Buna Silver... SAA output Viton Silver... SBA For metering tube M3 with valve in gasket valve pos. input Buna PTFE... GDE input Viton PTFE... GEE output Buna PTFE... GDA output Viton PTFE... GEA The suffix code of the metering tube - float combination can be read from the flow tables Style (constant)... *A Options (see separate tables)... / 1) Options /R2 and /R4 have brass process connections.

4 4 FLOW TABLES WITH METERING TUBE - FLOAT COMBINATIONS FOR WATER/LIQUIDS Flow table Suffix code metering tube - float combination Water/liquids 20 C Metering tube Float Recommended comb. Altemative comb. - - Row 1 Row 2 Max. Pressure Max. Pressure Length Diam. Metering Scale Material Diam. Flow- Ins. flow drop * ) flow drop * ) tube cone mark [l/h] [mbar] [l/h] [mbar] Code Code Code Code Code Code Code Code 1 1,5 K ,5 3 K K 6 34 B 6 8 K 6 37 Row K 7 41 SS;MU 1) 15 4 K 7 42 C 26 5 K K K 7 47 D K 7 51 L N 0, ,04 1,5 M 6 13 Row 1 0, ,1 3 M 6 17 TT;KR A 0,16 3 0,25 4 M 6 22 Row 2 SS;MU 1) 0,4 1 0,8 2,5 M 6 24 Row M 6 31 TT;KR;PD 1) B 1,6 3 2,8 3,5 M , M 6 33 G; Row 2 3, M 6 35 A; SS;MU 1) 4 2 6,3 4 M 7 34 N 6, ,5 M 7 37 Row M 7 41 TT;KR;PD 1) C M M 7 43 Row M 7 44 SS;MU 1) D M M 3 52 PP;PF 1 N M 3 52 Row 1 Row M 3 53 SS 3 3 M 2) M 3 54 Row 2 Row 2 N M 3 57 PP;PF 2 Description Metering tube length 75 mm... K (type) 150 mm... M Metering tube diameter 10 mm; 17 mm and 28 mm... Metering tube cone See flow table... Metering tube medium- Scale on metering tube and mm division 3 )... G scale Connection scale and mm division (recommended)... A Metering tube with mm division only... N Float material SS Titanium... TT Mumetal (for limit switches /Gl1; /Gl2 and /Gl4)... MU Polypropylene... PP PTFE... PF PVDF (Dyflor) (for limit switches /Gl2 to /Gl4)... PD Corundum... KR Float diameter 1,6 mm to 15,7 mm... Flow mark Liquid... L Factor 0,4 (water)... 1 Factor 0,63 (water)... 2 Factor 1 (water)... 3 Float insertion With magnet... M 2) Without magnet... N 1) For optional limit switches /GI1 to /GI4 2 For optional limit switches /GM1 to /GM2 3) Option /MM is indicated in case no mm division is desired. * ) The indicated pressure drop is a pilot value which may deviate depending on the flowmeter. Other metering tube - float combinations with other float materials and a variety of measuring ranges are available on request.

5 5 FLOW TABLES WITH METERING TUBE - FLOAT COMBINATIONS FOR AIR/GASES Flow table Suffix code metering tube - float combination Air/gas 20 C, 1 bar absolute Metering tube Float Recommended comb. Altemative comb. - - Row 1 Row 2 Max. Pressure Max. Pressure Length Diam. Metering Scale Material Diam. Flow- Ins. flow drop * ) flow drop * ) tube cone mark [l/h] [mbar] [l/h] [mbar] Code Code Code Code Code Code Code Code K K K 6 34 Row 1 B K 6 37 GL K K 7 42 Row 2 C K 7 43 TT;KR;PD 1) K K 7 47 D K K 7 51 SS;MU 1, ,5 M 6 13 Row 1 4, M 6 17 TT;KR A G N M 6 22 Row 2 SS;MU 1) 23 1,5 36 2,5 M M 6 31 Row ,5 M 6 32 G; TT;KR;PD 1) B M 6 33 A; M 6 35 N 180 2, ,5 M , ,5 M 7 37 Row M 7 41 SS;MU 1) M 7 42 C M M M 7 47 D M 3 52 Row 1 4 Row M 3 52 PP Row 1 N M M 3 54 Row 2 Row 2 Row M 3 57 PP 7 M 2),N Description Metering tube length 75 mm... K (type) 150 mm... M Metering tube diameter 10 mm; 17 mm and 28 mm... Metering tube cone See flow table... Measuring tube medium Scale on the metering tube and mm division 3 )... G scale Connected scale and mm division (recommended)... A Metering tube with mm division only... N Float material SS Titanium... TT Mumetal (for limit switches /Gl1; /Gl2 and /Gl4)... MU Polypropylene... PP PVDF (Dyflor) (for limit switches /Gl2 to /Gl4)... PD Corundum... KR Float diameter 1,6 mm to 15,7 mm... Flow mark Gas... G Factor 6,3 (air)... 4 Factor 10 (air)... 5 Factor 25 (air)... 7 Float insertion With magnet... N Without magnet (for limit switches /GM1 and /GM2)... M 2) 1) For optional limit switches /GI1 to /GI4 2) For optional limit switches /GM1 to /GM2 3) Option /MM is indicated in case no mm division is desired. * ) The indicated pressure drop is a pilot value which may deviate depending on the flowmeter used. Other metering tube - float combinations with other float materials and a variety of measuring ranges are available on request.

6 6 OPTIONS Options Suffix code Description Mark /B1 Stainless steel tag plate /BG Customer-specified notes (please specify) Limit Contact Function Application for floats (code) switch /GI1 3) bistable inductive ring initiator -MU A _ N /GI2 3) bistable inductive ring initiator -PD B _ N and -MU B _ N /GI3 3) bistable inductive ring initiator -PD C _ N /GI4 3) bistable inductive ring initiator -MU C _ N; -MU D _ N and -PD D _ N /GM1 MlN-contact mag. switch contact only for floats with magnet /GM2 MAX-contact mag. switch contact (metering tube M3) In case of two limit switches the option for each switch can be indicated. Accessories /MM No unit scale (division 1-10 or mm division) (without calculation table) metering tube /MV Viton gasket (not for plastic Rotameters) (for temperatures > 100 C and <130 C) Tests/ /H1 Certificate of degrease certificates /PT With flow table for recalculation /PP Inspection certificate for pressurised air Accessories /QA For panel mounting /QF Stand panel (only applicable for measuring tube M3) Controller /R1 Input pressure controller of with valve in input only 1) /R2 Input pressure controller of brass with valve in input only 1) /R3 Back pressure controller of with valve in output only 2) /R4 Back pressure controller of bass with valve in output only 2) Additional /W2A Transistor relay KFA6-SR2-Ex1.W/230 V AC; 1-channel, changeover contact instruments /W2B Transistor relay KFA6-SR2-Ex2.W/230 V AC; 2-channel, changeover contacts /W4A Transistor relay KFA6-SR2-Ex1.W/24 V DC; 1-channel, changeover contact /W4B Transistor relay KFA6-SR2-Ex2.W/24 V DC; 2-channel, changeover contacts 1) For gases with variable input and for liquids with variable input or back pressure. Not for metering tube M3. 2) For gases with variable back pressure only. Not for metering tube M3. 3) No connection scale is available for options /Gl1 to /Gl4 (code A). RECOMMENDATIONS FOR DETERMINING THE MODEL CODE Please specify in the following order: - Measuring range for water/liquids or measuring range for air/gas - With or without optional limit switch Select the desired measuring range from the appropriate flow table. Note the required float material for limit switches resp. the insertion (last column) and determine the suffix code for the metering tube - float combination. After the code for metering tube - length - diameter, to be found in the model code, is determined, and the selection with valve or without valve is made, the model code can be completed. Zur Auslegung der Rotameter für andere Medien/Prozeßbedingungen, verwenden Sie bitte das Auslegungsprogramm Durep. V.

7 7 DIMENSIONS WITH METERING TUBES K6; K7; M6; M7 A B B C Fig. 1. Model NNN (without valve) Fig. 2. Models SAE and SBE (with valve in input) Fig. 3. Model SAE and SBE with option /R1 or /R2 (with valve in input and Vordruck controller) Metering tube A B C K6; K7 111 mm 90 mm 121 mm M6; M7 186 mm 165 mm 196 mm DIMENSIONS WITH METERING TUBE M WEIGHT type without with metering tube controller kg controller kg K6; K7 0,3 1 M6; M7 0,4 1,1 M3 1,2 Fig 4. Model NNN (without valve) Fig 5. Models GDE and GEE (with valve in input)

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