The complex is used to measure the amount of gas SG-TK in accordance with GOST 5542-87 in units of volume (quantity) reduced to standard conditions through automatic electronic correction of readings of a rotary meter type RVG, turbine gas meters type SG, TRZ, diaphragm gas meter type VK for temperature and fixed values of pressure and gas compressibility coefficient.
The SG-TK complex can also be used to measure the volume of other non-aggressive, purified and dry gases (air, nitrogen, argon, etc., excluding oxygen).
The scope of application of the SG-TK complex is flow control and commercial metering of gas volume in pipelines at gas distribution points and stations (GRP, GDS), oil refining facilities, thermal power plants, petrochemical industry and other technological facilities in various industries.
The complex can be used in explosive areas of premises and outdoor installations in accordance with the requirements of Chapter 7.3 PUE, GOST R51330.0, GOST R51330.10, GOST 12.2.007.0 and has explosion protection marking “1ExibIIВT4”.
To ensure operation on gas containing mechanical impurities, gas filters must be installed in front of the complex.
Specifications
b) gas meter depending on the design, maximum permissible operating pressure and highest flow rate:
- — turbine gas meter SG (SG-TK-T1), TRZ (SG-TK-T2);
- — rotary gas meter RVG or RABO - (SG-TK-R);
- — diaphragm gas meter BK - (SG-TK-D).
Basic specifications:
Operating cost range:
- for modifications SG-TK-T based on the SG meter: from 8 m³/h to 4000 m³/h (operating flow range Qmin/Qmax up to 1:20);
for modifications SG-TK-T based on the TRZ meter: from 5 m³/h to 6500 m³/h (operating flow range Qmin/Qmax up to 1:30);
for modifications SG-TK-R based on the RVG meter: from 0.6 m³/h to 650 m³/h (operating flow range Qmin/Qmax up to 1:160);
for modifications SG-TK-R based on the RABO meter: from 0.4 m³/h to 400 m³/h (operating flow range Qmin/Qmax up to 1:250);
for modifications SG-TK-D: from 0.016 m³/h to 160 m³/h (operating flow range Qmin/Qmax 1:160).
Measurement error of the complex version SG-TK-T based on meters SG, TRZ and version SG-TK-R based on the meter RVG, RABO:
modifications SG-TK-T based on meters TRZ version “2U”, SG-TK-R based on RABO meters version “2U” (in the range of volumetric flow rates under operating conditions from Qmin to Qmax: ±1.0%);
modifications SG-TK-T, SG-TK-R based on RVG, SG meters and TRZ, RABO meters of other designs (in the range of volumetric flow rates under operating conditions from Qmin to Qt: ±2.1%; in the range of volumetric flow rates under operating conditions conditions from Qt to Qmax: ±1.1%)
Measurement error of the SG-TK-D design complex based on the VK meter:
flow range from 0.1 Qnom to Qmax: ±1.6%;
flow range from Qmin to 0.1 Qnom: ± 2.2%.
Substitution value of working pressure (excessive) depending on the design of the complex:
for version SG-TK-D (with gas meter type VK): up to 0.05 MPa;
for versions SG-TK-R(-T) with gas meters such as RVG, RABO (TRZ, SG): up to 0.1 MPa.
Temperature range environment SG-TK complex: from −30°C to +60°C.
Interverification interval is 5 years.
Explosion protection:
The SG-TK complex is approved for installation in hazardous areas and has explosion protection marking “1 Ex ib IIB T4”.
Interface
The complexes have an optical local access interface.
The SG-TK complex additionally has a remote access interface RS232/RS485, as well as the ability to connect external source nutrition direct current+5…9V, which allows it to be used in automated system commercial gas metering (ASKUG).
Functions of the measuring complex:
Programming and reading information from the corrector using the optical port installed on the front panel of the device.
Display of current measured and calculated parameters and archive data.
Formation of an archive with a volume of more than 2200 records with intervals of an hour, day or month for the working and standard volume of gas, substitution pressure, gas temperature, correction factor. Values are recorded in the archive after the end of the measurement period, as well as in the event of emergency situation(exceeding the limit values of the measured parameters) or in case of changes in the corrector settings.
Programming of 2 digital outputs for transmitting gas volume values in the form of pulses and/or transmitting error messages.
Alarm about emergency situations (unauthorized intervention, violation of the boundaries of measured parameters, etc.).
Remote access interface - RS232/RS485;
Remote transfer of archive and process data using the software package "SODEK TS", "SODEK Standard" or "SODEK Extra";
Possibility of connecting telemetry modules BP-EK-03/T, BPEK-04/TS;
Transmission of SMS messages.
When ordering, you must indicate the direction of gas flow relative to the operator. The operator is positioned facing the meter's counting mechanism and the corrector display, and the direction of gas flow can be from right to left or left to right.
If the corrector is installed on a wall, the cable lengths of the temperature converter (no more than 0.9 m) and the temperature sensor must be matched when ordering.
The SG-TK complex is equipped with a PS232/RS485 remote access interface, as well as the ability to connect an external DC power supply +5...9V, which allows it to be used in an automated commercial gas metering system (ASKUG).
The inter-verification interval is 5 years.
Additional devices (not included in delivery):
- external power supply and communication modules of the BPEK series (BPEK-03, BPEK-03/T, BPEK-03/Sh, BPEK-03/TSh, BPEK-04/TS);
- MP260 functional expansion module;
- software and hardware complex for reading data AS-300.
Attention! Additional devices must be installed outside the hazardous area.
If the location of the temperature transducer sleeve is placed on the pipeline, as agreed with the Customer, a set of mounting parts is supplied.
Software (not included):
- WinPADS - a software tool for configuring (parameterizing) the corrector.
- SODEK is a software package for reading archives and maintaining a database on a PC.
By agreement with the Customer, it is possible to supply the following equipment:
- gas filter FG16, which is installed in front of the SG-TK complexes;
- a set of straight sections of the KPU for the SG-TK complexes for the installation of gas meters used in the complex in accordance with the requirements of the operational documentation for the gas meter and the requirements of PR50.2.019-2006. The control unit has pressure tapping points to control the pressure drop across the gas meter with which the complex is equipped.
SG-TK complexes depending on the type of meters and various options versions have different technical characteristics.
Designs of complexes, ranges of measured flow rates, nominal diameters and maximum operating pressures correspond to the data in Table 2.
| Volume flow measurement range | m 3 / h |
| based on VK counter | 0,016 - 160 |
| based on SG meter | 10 - 2500 |
| based on TRZ meter | 5 - 6500 |
| based on RVG meter | 0,6 - 650 |
Options for the SG-TK complex with a gas meter VK, SG, TRZ, RVG
Specifications
| Option for the complex with a VK gas meter | Standard size | Volume flow measurement range at P work | ||
|---|---|---|---|---|
| Qmax, m³/h | Q nom, m³/h | Qmin, m³/h | ||
| SG-TK-D-2.5 | G1.6 | 2,5 | 1,6 | 0,016 |
| SG-TK-D-4 | G2.5 | 4 | 2,5 | 0,025 |
| SG-TK-D-6 | G4 | 6 | 4 | 0,04 |
| SG-TK-D-10 | G6 | 10 | 6 | 0,06 |
| SG-TK-D-16 | G10 | 16 | 10 | 0,1 |
| SG-TK-D-25 | G16 | 25 | 16 | 0,16 |
| SG-TK-D-40 | G25 | 40 | 25 | 0,25 |
| SG-TK-D-65 | G40 | 65 | 40 | 0,4 |
| SG-TK-D-100 | G65 | 100 | 65 | 0,65 |
| SG-TK-D-160 | G100 | 160 | 100 | 1 |
Designs of complexes, ranges of measured flow rates, nominal diameters and maximum operating pressures correspond to the data in the tables below.
Table. Technical characteristics of complexes with SG gas turbine meters, version T.
| Execution of the complex | Nominal diameter DN | Volume flow measurement range at Рrab | ||
| Qmax | Qmin | |||
| measurement range | ||||
| 1:10 | 1:20 | |||
| mm | m3/h | m3/h | m3/h | |
| SG-TK-T-100 | 50 | 100 | 10 | - |
| SG-TK-T-250 | 80 | 250 | 25 | 13 |
| SG-TK-T-400 | 100 | 400 | 40 | 20 |
| SG-TK-T-650 | 100 | 650 | 65 | 32,5 |
| SG-TK-T-800 | 150 | 800 | 80 | 40 |
| SG-TK-T-1000 | 150 | 1000 | 100 | 50 |
| SG-TK-T-1600 | 200 | 1600 | 160 | 80 |
| SG-TK-T-2500 | 200 | 2500 | 250 | 125 |
Table. With corrector TS220 and gas meters SG-250...2500 (flange version)
| Designation | Rice. | Gas meter type | Duh, mm |
D, mm |
D1, mm |
n, PC |
A, mm |
B, mm |
K, mm |
Weight, kg |
| SG-TK-T-250 | 5 | SG16MT-250 | 80 | 195 | 160 | 8 | 240 | 415 | 320 | 14 |
| SG-TK-T-400 SG-TK-T-650 |
5 | SG16MT-400 SG16MT-650 |
100 | 215 | 180 | 300 | 435 | 332 | 18 | |
| SG-TK-T-800 SG-TK-T-1000 |
5 | SG16MT-800 SG16MT-1000 |
150 | 280 | 240 | 8 | 450 | 490 | 360 | 33 |
| SG-TK-T-1600 SG-TK-T-2500 |
5 | SG16MT-1600 SG16MT-2500 |
200 | 335 | 295 | 12 | 550 | 385 | 47 | |
Table. This table shows the technical characteristics of complexes with turbine meters TRZ version T.
Execution of the complex |
Nominal diameter, DN |
Meter size |
Volume flow measurement range at Рrab |
||
| measurement range | |||||
| 1:20 | 1:30 | ||||
| mm | m 3 / h | m 3 / h | m 3 / h | ||
| SG-TK-T-100 | 50 | G65 | 100 | 5 | - |
| SG-TK-T-250 | 80 | G160 | 250 | 13 | - |
| SG-TK-T-400 | 80 | G250 | 400 | 20 | 13 |
| SG-TK-T-400 | 100 | G250 | 400 | 20 | - |
| SG-TK-T-650 | 100 | G400 | 650 | 32 | 20 |
| SG-TK-T-650 | 150 | G400 | 650 | 32 | - |
| SG-TK-T-1000 | 150 | G650 | 1000 | 50 | 32 |
| SG-TK-T-1600 | 150 | G1000 | 1600 | 80 | 50 |
| SG-TK-T-1600 | 200 | G1000 | 1600 | 80 | - |
| SG-TK-T-2500 | 200 | G1600 | 2500 | 130 | 80 |
| SG-TK-T-2500 | 250 | G1600 | 2500 | 125 | - |
| SG-TK-T-4000 | 250 | G2500 | 4000 | 200 | 130 |
| SG-TK-T-4000 | 300 | G2500 | 4000 | 200 | - |
| SG-TK-T-6500 | 300 | G4000 | 6500 | 320 | 200 |
Table. With corrector TC220 and gas meters TRZ G160-G4000.
| Designation | Rice. | Gas meter size TRZ | RU MPa |
Duh, mm |
A, mm |
IN, mm |
TO, mm |
N, mm |
D, mm |
D1, mm |
d, mm |
n, PC |
Weight, kg |
| SG-TK-T-250 SG-TK-T-400 |
1 | G160, G250 | 1,6 | 80 | 240 | 456 | 356 | 26 | 200 | 160 | 18 | 8 | 22 |
| SG-TK-T-400 SG-TK-T-650 |
1 | G250, G400 | 1,6 | 100 | 300 | 491 | 381 | 28 | 220 | 180 | 18 | 8 | 29 |
| SG-TK-T-650 SG-TK-T-1000 SG-TK-T-1600 |
1 | G400, G650, G1000 | 1,6 | 150 | 450 | 581 | 438,5 | 30 | 285 | 240 | 22 | 8 | 56 |
| SG-TK-T-1600 SG-TK-T-2500 |
1 | G1000, G1600 | 1,6 | 200 | 600 | 620 | 460 | 30 | 335 | 295 | 22 | 12 | 101 |
Table. Technical characteristics of complexes with rotary gas meters RVG.
| Execution of the complex | Nominal diameter DN | Meter size | Range of operating costs (at Рrab) | |||||||
| Qmax | Qmin | |||||||||
| measurement range | ||||||||||
| 1:20 | 1:30 | 1:50 | 1:65 | 1:80 | 1:100 | 1:160 | ||||
| mm | m3/h | m3/h | m3/h | m3/h | m3/h | m3/h | m3/h | m3/h | ||
| SG-TK-P-25 | 50 | G16 | 25 | 1,3 | 0,8 | - | - | - | - | - |
| SG-TK-P-40 | 50 | G25 | 40 | 2,0 | 1,3 | 0,8 | 0,6 | - | - | - |
| SG-TK-P-65 | 50 | G40 | 65 | 3,0 | 2,0 | 1,3 | 1,0 | 0,8 | - | - |
| SG-TK-P-100 | 50 | G65 | 100 | 5,0 | 3,0 | 2,0 | 1,6 | 1,3 | 1,0 | 0,6 |
| SG-TK-P-160 | 80 | G100 | 160 | 8,0 | 5,0 | 3,0 | 2,5 | 2,0 | 1,6 | 1,0 |
| SG-TK-P-250 | 80 | G160 | 250 | 13,0 | 8,0 | 5,0 | 4,0 | 3,0 | 2,5 | 1,6 |
| SG-TK-P-400 | 100 | G250 | 400 | 20,0 | 13,0 | 8,0 | 6,0 | 5,0 | 4,0 | 2,5 |
| SG-TK-P-650 | 100 | G400 | 650 | 32,5 | 20,0 | 13,0 | 10,0 | 8,0 | 6,5 | 4,0 |
| SG-TK-P-650 | 150 | G400 | 650 | 32,5 | 20,0 | 13,0 | 10,0 | 8,0 | 6,5 | 4,0 |
Table. With TC220 corrector based on RVG-16 - RVG-400 counters
| Designation | Rice. | Standard size of gas meter RVG | Du mm |
D, mm |
A, mm |
IN, mm |
E, mm |
F, mm |
K, mm |
d, mm |
n, PC |
Weight, kg |
| SG-TK-R-25...100 | 3 | G16-G25 | 50 | 125 | 335 | 390 | 115 | 171 | 297 | M16 | 4 | 14 |
| SG-TK-R-160 | 3 | G100 | 80 | 160 | 435 | 390 | 165 | 171 | 297 | M16 | 8 | 18 |
| SG-TK-R-250 | 3 | G160 | 80 | 160 | 469 | 441 | 189 | 241 | 324 | M16 | 8 | 35 |
| SG-TK-R-400 | 3 | G250 | 100 | 180 | 529 | 441 | 219 | 241 | 324 | M16 | 8 | 41 |
| SG-TK-R-650 | 3 | G400 | 100 | 180 | 660 | 464 | 290 | 260 | 324 | M16 | 8 | 52 |
| SG-TK-R-650 | 3 | G400 | 150 | 240 | 660 | 464 | 290 | 260 | 324 | M20 | 8 | 58 |
Fig. 1. Gas flow direction - from left to right
Fig 2. Gas flow direction - from right to left
Fig 3. Gas flow direction - from left to right
Fig 4. Gas flow direction - from right to left
Fig 5. Gas flow direction - from left to right
Figure 6. Gas flow direction - from right to left
Fig. 7. Installation of the SG-TK complex with a TS220 corrector with a place for measuring gas temperature on the pipeline
Schemes SG-TK
Options for the complex with a VK gas meter
Find out prices or buy SG-TK possible through price request form or equipment order form. Expert advice can be obtained by phone 8-800-555-7654 . The call is free to all regions.
Basic information:
Based on the counter: TRZ, SG, RVG, VK
Gas volume corrector: TS220
Throughput, m3/h: from 5 to 6500; from 0.016 to 160
Price on request
Purpose:
SG-TK complexes are designed to measure the volume of natural gas in accordance with GOST 5542 and other non-aggressive, dry and purified, single- and multi-component gases in units of volume (quantity) reduced to standard conditions through automatic electronic correction of turbine (TRZ, SG), rotary ( RVG), diaphragm (VC) gas meters for temperature and at fixed values of pressure and gas compressibility coefficient.
The SG-TK complex consists of a gas volume corrector TS220 and a gas meter.
Depending on the type of gas meter used, the SG-TK complex has the following versions:
- version of the SG-TK-T complex - with a turbine gas meter TRZ Ru16 or SG16MT-R;
- version of the SG-TK-R complex - with a rotary gas meter RVG;
- version of the SG-TK-D complex - with a BK diaphragm gas meter.
Principle of operation:
The principle of operation of the SG-TK complex is based on the simultaneous measurement of the volume of gas (under operating conditions) passed through the meter and the temperature of the gas, followed by calculation, processing and archiving of the volume of gas reduced to standard conditions, taking into account conditionally constant (substitution) values of pressure and compressibility coefficient gas using the gas volume corrector TC220.
Functions performed:
- Programming and reading information from the corrector using the optical port installed on the front panel of the device.
- Display of current measured and calculated parameters and archive data.
- Formation of an archive with a volume of more than 2200 records with intervals of an hour, day or month for the working and standard volume of gas, substitution pressure, gas temperature, correction factor. Values are recorded in the archive after the measurement period has expired, as well as in the event of an emergency (exceeding the limit values of the measured parameters) or in the event of changes in the corrector settings.
- Programming of 2 digital outputs for transmitting gas volume values in the form of pulses and/or transmitting error messages.
- Alarm about emergency situations (unauthorized intervention, violation of the boundaries of measured parameters, etc.).
- Remote access interface - RS232/RS485;
- Remote transfer of archive and process data using software SODEC;
- Possibility of connecting telemetry modules BP-EK-03/T, BPEK-04/TS;
- Transmission of SMS messages.
Main characteristics:
- Operating flow range: for modifications SG-TK-T based on the SG meter: from 8 m 3 /h to 4000 m 3 /h (operating flow range Qmin/Qmax up to 1:20);
for modifications SG-TK-T based on the TRZ meter: from 5 m 3 / h to 6500 m 3 / h (operating flow range Qmin/Qmax up to 1:30);
for modifications SG-TK-R: from 0.6 m 3 / h to 650 m 3 / h (range of operating flow rates Qmin/Qmax up to 1:160);
for modifications SG-TK-D: from 0.016 m 3 / h to 160 m 3 / h (range of operating flow rates Qmin/Qmax up to 1:160).
- Measurement error of the SG-TK-T version based on SG, TRZ meters and the SG-TK-R version based on the RVG meter:
Flow range from Qt to Qmax; ± 1.2%;
-flow range from Qmin to Qt; ± 2.2%,
where Qt is the transition point (flow rate at which the error changes from one value to another):
Version SG-EK-T-100 based on the meter SG16MT-100-R (-R-1): 0.2Qmax;
Version SG-EK-T based on the meter SG16MT-250…4000-R-2: 0.1Qmax;
Version SG-EK-T based on the meter SG16MT-250…4000-R-3: 0.05Qmax;
Version SG-EK-T-250...6500 based on the TRZ G100...G4000 meter: 0.1Qmax;
Version SG-EK-T-100 based on the TRZ G65 meter: 0.2Qmax;
Version SG-EK-R based on the RVG meter of the main version: 0.1Qmax;
Version SG-EK-R based on the RVG meter, additional version “U”: 0.05Qmax.
- Measurement error of the SG-TK-D design complex based on the VK meter:
Flow range from 0.1 Qnom to Qmax; ±1.7%;
- flow range from Qmin to 0.1 Qnom ± 3.2%.
- Nominal diameter DN, mm:
SG-TK-T based on the SG meter: Du50...Du200
SG-TK-T based on TRZ meter: DN50...DN300
SG-TK-R: DN50...DN150 - Substitution value of working pressure (excessive) depending on the design of the complex:
for version SG-TK-D (with gas meter type VK): up to 0.05 MPa;
for versions SG-TK-R(-T) with gas meters type RVG (TRZ, SG): up to 0.1 MPa. - Ambient temperature range of the SG-TK complex: from -30 0 C to +60 0 C.
- Interverification interval is 5 years.
- Explosion protection:
The SG-TK complex is approved for installation in hazardous areas and has explosion protection marking “1 Ex ib IIB T4”.
Interface
The complexes have an optical local access interface.
The SG-TK complex additionally has a remote access interface RS232/RS485, as well as the ability to connect an external DC power supply +5...9V, which allows it to be used in an automated commercial gas metering system (ASKUG).
Optional equipment:
Additional devices (not included in delivery):
- external power supply and communication modules of the BPEK series (BPEK-03, BPEK-03/T, BPEK-03/Sh, BPEK-03/TSh, BPEK-04/TS);
- MP260 functional expansion module;
- hardware and software complex for reading data AS-300.
Attention! Additional devices must be installed outside the hazardous area.
Software (not included):
- Software package "SODEK ® Standard™" version 6.x - designed for collecting data from non- large quantity TC220 in interactive mode with a direct connection or remotely (including via GSM channel).
- The software and hardware complex “SODEK ® Extra™” is designed to collect data from a large number of TC220 correctors in automatic mode with a direct connection or remotely (including via GSM / GPRS channels).
By agreement with the Customer, it is possible to supply the following equipment:
- gas filter FG16, which is installed in front of the SG-TK complexes;
- a set of straight sections of the KPU for the SG-TK complexes for the installation of gas meters used in the complex in accordance with the requirements of the operational documentation for the gas meter and the requirements of GOST R 8.740-2011. The control unit has pressure tapping points to control the pressure drop across the gas meter used in the equipment of the complex.
- SG-TK can be supplied as part of gas metering and reduction points of the PUG, PURDG series.
Selection of measuring complex
Online application
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Description:Gas metering complex SG-TK2-D-4 is designed for commercial metering of the amount of gas consumed in public utilities. Created on the basis of and (temperature correction). Qmax=4 m3/h; installation of a corrector on the wall, a temperature sensor in the inlet (outlet) pipe of the gas meter.
Purpose: commercial accounting of the volume of gas consumed in municipal and household services.
Medium: natural gas, propane-butane, inert gases.
Application area: accounting for the volume of gas in individual houses, in small enterprises equipped gas stoves, heating boilers and columns.
The principle of operation of the SG-TK complex is based on the simultaneous measurement of the volume of gas (under operating conditions) passed through and the temperature of the gas, followed by calculation, processing and archiving of the volume of gas reduced to standard conditions, taking into account conditionally constant (substitution) values of pressure and gas compressibility coefficient by using .
Functions performed:
- Programming and reading information from the corrector using the optical port installed on the front panel of the device.
- Display of current measured and calculated parameters and archive data.
- Formation of an archive of more than 500 records with intervals of an hour, day or month on the working and standard volume of gas, substitution pressure, gas temperature, correction factor. Values are recorded in the archive after the measurement period has expired, as well as in the event of an emergency (exceeding the limit values of the measured parameters) or in the event of changes in the corrector settings.
- Programming of 2 digital outputs for transmitting gas volume values in the form of pulses and/or transmitting error messages.
- Alarm about emergency situations (unauthorized intervention, violation of the boundaries of measured parameters, etc.).
Execution option: mounting the corrector on the wall
Corrector TC 220 (1) can be used with gas meters BK (4). To do this, a set of mounting parts (2) is installed on the inlet pipe of the meter, which is equipped with a temperature sensor sleeve for installing a corrector and a union nut for attaching to the meter. The free end of the mounting kit is connected to the gas pipeline. The TC 220 corrector is installed in the temperature sensor sleeve and secured with a locking screw. To transmit pulses directly proportional to gas flow to the input of the corrector, an IN-Z31 pulse generator (“reed switch”) (3) is used, which is attached to the meter reading device using a special clamp. Pulses are transmitted via the cable included in the IN-Z31 kit.
Specifications:
| Nominal flow Qnom. | 10 | ||
| Maximum flow Qmax. | 16 | ||
| Minimum flow rate Qmin. | 0.10 | ||
| Relative error in flow rate. | |||
| From Qmin. up to 0.1 Qnom. % | +/-3 | ||
| Over 0.1 Qnom. up to Qmax. % | +/- 1,5 | ||
| Maximum working pressure kPa | 50 | ||
| Ambient temperature C | -30...+60 | ||
| Weight | 5,7 | ||
| Interverification interval, years. | 10 | ||
| Center distance, mm. | 280 | ||
| dimensions | 405*234*330 | ||
| Du, mm | 50 | ||
Documentation:
- RE. Complex for measuring the amount of gas SG-TK
- Permission to use Complexes for measuring the amount of gas SG-EK and SG-TK
- Certificate of conformity. Complex for measuring the amount of gas SG-TK
- MVI of natural gas volume using the SG-TK complex and diaphragm gas meters of the VK type with correctors of the TS series
Purpose:
Commercial and technological accounting of the working volume of natural gas and other non-aggressive, dry and purified, single- and multi-component gases at gas distribution points and stations (gas fracturing, gas distribution stations), thermal power plants, oil refining, petrochemical industry facilities and other technological facilities in various industries and municipal services.
Compound:
The SG-TK complex consists of a gas volume corrector and a gas meter.
Depending on the type of gas volume corrector used, the SG-TK complex has the following versions:
- version SG-TK with gas volume corrector TS220;
Depending on the type of gas meter used, the SG-TK complex has the following versions:
- version of the SG-TKn*-T1 complex - with a SG turbine gas meter;
- version of the SG-TKn-T2 complex - with a TRZ turbine gas meter;
- version of the SG-TKn-R complex - with a rotary gas meter RVG;
- version of the SG-TKn-D complex - with a BK diaphragm gas meter.
Operating principle:
The principle of operation of the SG-TK complex is based on the simultaneous measurement of the volume of gas (under operating conditions) passed through the meter and the temperature of the gas, followed by calculation, processing and archiving of the volume of gas reduced to standard conditions, taking into account conditionally constant (substitution) values of pressure and compressibility coefficient gas with using gas volume corrector TC220
Functions performed:
- Programming and reading information from the corrector using the optical port installed on the front panel of the device.
- Display of current measured and calculated parameters and archive data.
- Formation of an archive of more than 500 records with intervals of an hour, day or month on the working and standard volume of gas, substitution pressure, gas temperature, correction factor. Values are recorded in the archive after the measurement period has expired, as well as in the event of an emergency (exceeding the limit values of the measured parameters) or in the event of changes in the corrector settings.
- Programming of 2 digital outputs for transmitting gas volume values in the form of pulses and/or transmitting error messages.
- Alarm about emergency situations (unauthorized intervention, violation of the boundaries of measured parameters, etc.).
- Remote access interface - RS232 (SG-TK2 complex based on TS220);
- Remote transmission of archive and process data using SODEC software (SG-TK2 complex based on TS220);
- Possibility of connecting a modem (SG-TK2 complex based on TS220).
Main characteristics:
- Operating flow range: for modifications SG-TKn*-T1: from 10 m 3 /h to 2500 m 3 /h (operating flow range Qmin/Qmax up to 1:20);
for modifications SG-TKn-T2: from 5 m 3 / h to 6500 m 3 / h (range of operating flow rates Qmin/Qmax up to 1:30);
for modifications SG-TKn-R: from 0.8 m 3 / h to 650 m 3 / h (range of operating flow rates Qmin/Qmax up to 1:160);
for modifications SG-TKn-D: from 0.016 m 3 / h to 160 m 3 / h (range of operating flow rates Qmin/Qmax up to 1:160).
- Measurement error depending on the design of the complex:
version SG-TKn*-T1 (based on the SG meter):
-flow range from 0.2 Qmax to Qmax; ± 1.2%;
-flow range from Qmin to 0.2Qmax; ± 2.2%.
version SG-TKn-T2-250...6500 (based on the TRZ G160 ... G4000 meter):
- flow range from 0.1 Qmax to Qmax; ± 1.2%;
- flow range from Qmin to 0.1Qmax; ± 2.2%.
version SG-TKn-T2-100 (based on the TRZ G65 meter):
- flow range from 0.2 Qmax to Qmax; ± 1.2%;
- flow range from Qmin to 0.2 Qmax; ± 2.2%.
version SG-TKn-R (based on the RVG meter):
- flow range from 0.1 Qmax to Qmax; ± 1.2%;
- flow range from Qmin to 0.1 Qmax. ± 2.2%.
version SG-TKn-D (based on the VK meter):
- flow range from 0.1 Qnom to Qmax; ±1.7%;
- flow range from Qmin to 0.1 Qnom ± 3.2%.
- Nominal diameter DN, mm: SG-TKn-T1: DN50...DN200
SG-TKn-T2: DN50...DN300
SG-TKn-R: DN50...DN150
- Substitution value of working pressure (excessive) depending on the design of the complex:
for version SG-TKn*-D (with gas meter type VK): up to 0.05 MPa;
for versions SG-TKn*-T1(-T2, -P) with gas meters type SG (TRZ, RVG): up to 0.1 MPa.
- Ambient temperature range of the SG-TK complex: from -30 0 C to +60 0 C.
- interverification interval is 5 years.
- Explosion protection:
The SG-TK2 complex (based on the TS220 gas volume corrector) is designed for installation outside a hazardous area. - Interface
The complexes have an optical local access interface.
The SG-TK2 complex (based on the TS220 gas volume corrector) additionally has an RS232 remote access interface and the ability to connect an external +5...9V DC power supply, which allows it to be used in an automated commercial gas metering system (ASCG).
Specifications.
| Options | SG-TK1-D65 | ||
| Nominal flow Qnom. | 40 | ||
| Maximum flow Qmax. | 65 | ||
| Minimum flow rate Qmin. | 0,40 | ||
| Relative error in flow rate. | |||
| From Qmin. up to 0.1 Qnom. % | +/-3 | ||
| Over 0.1 Qnom. up to Qmax. % | +/- 1,5 | ||
| Maximum working pressure kPa | 50 | ||
| Ambient temperature C | -40...+55 | ||
| Weight | 28 | ||
| Interverification interval, years. | 10 | ||
| Center distance, mm. | --- | ||
| dimensions | 570*392*403 | ||
| Du, mm | 80 | ||
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