COMMON S.A Gas Meters 2020-09-11T13:41:59+01:00

COMMON S.A Gas Meters (Quantometer, Turbine & Rotary)

common Turbine Gas Meter
cgt02big-300x225

CGT-02 Turbine Gas Meter

The CGT-02 turbine gas meters are flow meters designed to measure quantity of gases. The meters can be used for gas flow ranges from 5 up to 10 000 m3/h. The CGT-02 gas meters are applied in measurement systems where high accuracy is required:

  • Transportation of natural gas
  • Primary and secondary measurements
  • Control metering of the natural gas and non aggressive technical gases in industry
  • Flow measurement for technical purposes

The turbine gas meter measures the quantity of gas basing on the flow principle. The gas flows through an integrated flow conditioner, which distributes the flow proportionally in the annular slot and guides it to the turbine wheel. The wheel is driven by the gas flow, and the angular velocity of the rotation is proportional to the gas flow rate. The energy consumption, perceived as pressure loss, is reduced to absolute feasible minimum due to the application of the flow conditioner, highest precision ball barings, most accurate tolerances of all measuring parts and their proper alignement. The rotary motion of the turbine wheel is transferred mechanically by gear wheels, and the incorporated gas tight and hermetic magnetic coupling, to the index unit, which is mounted on the top of the body, and shows the operating volume on the totalizer.

The basic components of the CGT-02 turbine gas meter are as follows:

  • Pressure resistant meter body
  • Inlet flow conditioner
  • Measuring cartridge with the turbine wheel
  • Magnetic coupling as the transferring element between measuring cartridge and the index
  • Index
  • Lubricating system (some meters are provided with self lubricating bearings)

The meters are mainly used for measurements of combustible and inert gases.

Pressure rating:
PN10 to PN110,
ANSI150 to ANSI600
other rates on request
Nominal diameter:DN50 up to DN400 standard rangeother on request
Meter bodies:ductile iron or steeldetails in table 4
Flow:5 to 10 000 m3/hother on request
Rangeability:
1:20 minimum at atmospheric pressureincreased rangeability on request
Upstream pipe:
minimum 2 x DN; meters meet the requirements of the OIML R32 89 Annex A 
Temperature range:
gas temperature -25°C to +70°C
ambient temperature -25°C to +70°C
 
Allowed medias:see table 2 
Operating position:horizontal or vertical 
Measurement accuracy:
EU requirements and better
guaranteed at least:
0.2 Qmax – Qmax < ± 1%
Qmin – 0.2 Qmax < ± 2%
 

error_curve

Figure 1. Measurement error typical curve at low pressure (average 1 bara) – green curve and at high pressure (over 5 bara) – blue curve

Table 1

DNGMaximum Flow
Qmax [m3/h]
Minimum flow
Qmin [m3/h]
LF Pulse rate
[m3/pulse]
mminch
50 265100510
80310016081
16025013
25040020
1004160250131
25040020
40065032
150 6400650321
650100050
10001600800,1
200 86501000501
10001600800,1
16002500130
2501010001600800,1
16002500130
25004000200
30012160025001300,1
25004000200
40006500320
400 16250040002000,1
40006500320
650010000500

Table 2: Physical properties of most popular gases that may be measured with the CGT turbine gas meters – density at 101,325 kPa and at 20°C

GasChemical symbol (formula)Density ρ [kg/m3]Density related
to air
Gas meter execution
ArgonAr1,661,38standard IIB
ButaneC4H102,532,10standard IIB
Carbon dioxideCO21,841,53standard IIB
Carbon monoxideCO1,160,97standard IIB
EthaneC2H61,271,06standard IIB
EthyleneC2H41,170,98standard IIB
HeliumHe0,170,14standard IIB
MethaneCH40,670,55standard IIB
Natural gas~0,75~0,63standard IIB
NitrogenN21,160,97standard IIB
PropaneC3H81,871,56standard IIB
AcetyleneC2H21,090,91special IIC
HydrogeneH20,0840,07special IIC
Air1,201,00standard IIB

 

PRESSURE AND TEMPERATURE OUTPUTS

The operating pressure (reference pressure) can be taken from the pressure taps, marked pr, located on both sides of the meter body. The meters DN100 and larger can be optionally equipped with two temperature taps for the measurement of the gas temperature.

PULSE SENSORS

The mechanical index unit indicates the actual volume of the measured gas at operating temperature and operating pressure. It can be rotated axially by 350° in order to facilitate the readings and enable easier connection of pulse sensor plugs. The index unit is provided with one low frequency reed contact pulse transmitter (LFK), as a standard. On request the index may be equipped with:

  • LFI – low frequency inductive pulse sensor (NAMUR)
  • HFI – high frequency inductive pulse sensor (NAMUR)

The CGT-02 turbine gas meters may be provided with up to 10 pulse sensors for DN100 – DN400 and up to 8 pulse sensors for DN50 – DN80

  • LFK – low frequency reed contact pulse sensor LFK1, LFK2
  • LFI – low frequency inductive pulse sensor LFI1, LFI2
  • HF – inductive pulse sensor:
    • HF1, HF2 – in the index head
    • HF3, HF4 – over the turbine wheel
    • HF5, HF6 – over the reference wheel
  • AFK – anti-fraud reed contact AFK

The turbine wheel is made of aluminium, as a standard. This allows to provide each turbine gas meters with HF inductive pulse sensors.

DIMENSIONS AND WEIGHTS

CGT-02 Gas Meter - DimensionsCGT-02 Gas Meter - Dimensions

DNLABCE, F*FlangeWeght
ANSIPNcast ironsteel
mminchmmmmmmmmmmkgkg
5021502034258150168,511
150209,510
2263005011,5
6414
60011014
8032402066095146162025
801502019,524,5
2223005027,5
6428
60011032
1004300220101124157162533,5
1502026,534,4
2333005043
6440
60011056
15064502471251801851662,5
155150204862,5
261300504780,5
6484
600110106
20086002702122402021680
1502086
28230050116
64128
600110153
2501075029827033023216142
15020147
30830050190
64206
600110271
3001290032330035025816215
15020235
34530050290
64300
600110360

* size E is valid for meters PN16, PN20 and ANSI 150, size F is valid for meters PN50, PN64, PN110, ANSI300 and ANSI600

INSTALLATION AND OPERATION RECOMMENDATIONS

  • Meters should be shipped in their original package to the place of installation.
  • Meters have to be handled with care and protected against falls, direct infl uence of rain, snow or high humidity.
  • The measured gas should be clean, dry and free from solid impurities. It is recommended that the upstream pipe installation is to be equipped with a filter (10 micron).
  • Prior to putting into operation in new installations, it is recommended to install a temporary cone sieve.
  • Prior to installation the upstream and downstream pipe fl anges should be aligned properly.
  • Flange gaskets are to be installed so as not to disturb the gas flow.
  • The gas flow should be in accordance with the arrow placed on the meter body.
  • The piping should be executed so as to avoid unnecessary stresses acting on the meter.
  • When used outdoors the meter should be protected against direct weather infl uence.
  • When starting the gas flow through the installation, the valves should be opened slowly to ensure a gradual increase of pressure.

ATTENTION! If valves are opened abruptly or pressure increase takes place in a short time it may happen that the measurement cartridge or the turbine wheel get damaged.


ALWAYS REMEMBER TO START UP THE METERS IN A PROPER WAY!

The research and development program is being continued by COMMON S.A. Technical specifications and construction may change due to improvements. 

COMMON Rotary Gas Meter

CGR-FX Rotary Gas Meter

Rotary gas meters are positive displacement meters, designed to measure quantity of gas, for custody transfer or technical measurement applications.
The CGR-FX Meters are applied in measurement systems where high accuracy is required:
• Transportation and distribution of natural gas
• Primary and secondary measurements
• Control metering of natural gas and non aggressive technical gases in industry

The rotary gas meters are positive displacement meters, designed to measure quantity of gas, for custody transfer or technical measurement applications. The devices are mainly applied for gas flow ranges from 0.2 up to 650 m³/h, and the pressure range up to 20 bar.

  • Inline gas meters with wafer connections to suit PN16 flanges, ANSI 150 alternative
  • Fitted with low frequency pulse output as standard
  • Aluminium body, suitable for natural gas and LPG, -20°C to +60°C
  • Nominal rangeability 1:50, Meters read in cubic metres, index can be head rotated through 360°
MWA CodeSizeConnectionsPulse ValuesMax pressureMin
m³/hr
Max
m³/hr
Weight (KG)
CGR40G161½”PN16 flangesPulse output, 1 pulse = 0.01 m³/hr20 bar0.525.010 kg
CGR40G261½”PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar0.840.012 kg
CGR40G401½”PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar1.365.014 kg
CGR50G162½”PN16 flangesPulse output, 1 pulse = 0.01 m³/hr20 bar0.525.010 kg
CGR50G252″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar0.840.012 kg
CGR50G402″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar1.365.014 kg
CGR50G652″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar2.0100.019 kg
CGR80G1003″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar3.0160.024 kg
CGR80G1604″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar5.0250.031 kg
CGR80G2503″PN16 flangesPulse output, 1 pulse = 0.1m³/hr20 bar8.0400.042 kg
CGR100G1004″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar3.0250.024kg
CGR100G1604″PN16 flangesPulse output, 1 pulse = 0.1 m³/hr20 bar5.0250.031 kg
CGR100G2504″PN16 flangesPulse output, 1 pulse = 1 m³/hr20 bar8.0400.042 kg
CGR100G4004″PN16 flangesPulse output, 1 pulse = 1 m³/hr20 bar13650.042 kg

CGR ROTARY GAS METER ANCILLARIES

Description
CGR calibration certificates
CGR Encoder for 4-20 Ma or Mbus output
CGR 6-pin pulse plug and 2 metre lead
CGR high frequency pulse output – external
CGR high frequency pulse output – internal
CGR Remote 6-digit single LCD display Programmable installed in IP67 enclosure
CGR Chatterbox – e.Model unit, battery operated, 4 outputs, Atex IS.
CGR CMK-03 Pressure and Temperature Volume Converter
COMMON Quantometer

CPT-01 Quantometer - FLANGE FITTING

CPT Quantometers have been designed in order to provide our customers with reliable and inexpensive measuring instruments for secondary flow measurements. Our great experience in designing and manufacturing of turbine and rotary gas meters resulted in the development of industrial quantometers. Taking into account our customers’ demands we created the instrument with excellent metrological characteristics and operating performance close to performances of the turbine gas meters designed for custody transfer measurements. Other advantages of the CPT Quantometers are as follows: high quality, easy maintenance, wide range of external devices that can co-operate with the quantometers, e.g. volume correctors, data loggers, data transmission systems. Due to that the CPT Quantometers are well accepted by our domestic and foreign customers.

The basic components of the CPT Quantometer are as follows:

  • pressure resistant meter body
  • inlet flow conditioner
  • measuring cartridge with the turbine wheel
  • magnetic coupling as the transferring elementbetween measuring cartridge and the index
  • index head

MEASUREMENT OUTPUTS

The operating pressure (reference pressure) can be taken from the pressure tap, marked pr, located on one side of the meter body.

PULSE SENSORS

The mechanical index unit indicates the actual volume of the measured gas at operating temperature and operating pressure. It can be rotated axially by 350° in order to facilitate the readings and enable easier connection of pulse sensor plugs. The index unit is provided with one low frequency LFK reed contact pulse transmitter, as a standard. On request the index may be equipped with:

  • LFI inductive pulse sensor (NAMUR)
  • HF inductive pulse sensor (NAMUR)

The CPT Quantometers may be provided with up to 7 pulse sensors:

LFK – low frequency reed contact pulse sensorLFK 1, LFK 2
LFI – low frequency inductive pulse sensorLFI 1, LFI 2
HF – inductive pulse sensor in the index unitHF 1, HF 2
HF – inductive pulse sensor over the turbine wheelHF 3
AFK – anti-fraud reed contact AFK 

The turbine wheel, as a standard, is made of aluminium. This allows to provide each CPT Quantometer with one HF3 inductive pulse sensor. 

CPT Quantometers have been designed in order to provide our customers with reliable and inexpensive measuring instruments for secondary flows.

  • Inline turbine gas meters with wafer connections to suit PN16 flanges
  • Fitted with low frequency pulse output as standard – multiple LF & HF options available
  • Aluminium body, suitable for natural gas and LPG, -20°C to +60°C
  • Biogas option available
  • For horizontal or vertical pipelines with 5 x DN straight lengths of pipe up stream
  • Nominal rangeability 1:20, meters read in cubic metres, index can be head rotated through 350°
MWA CodeSizeConnectionsPulse ValuesMax pressureMin
m³/hr
Max
m³/hr
Weight
CPT50G40*2”PN16 flangesPulse output, 1 pulse = 0.1 m³/hr16 bar6653.6kg
CPT50G65*2”PN16 flangesPulse output, 1 pulse = 0.1 m³/hr16 bar101003.6kg
CPT65G65*2½”PN16 flangesPulse output, 1 pulse = 0.1 m³/hr16 bar81005.3kg
CPT65G1002½”PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar81605.3kg
CPT80G1003″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar81605.3kg
CPT80G1603″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar132505.3kg
CPT80G2503″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar204005.3kg
CPT100G1604″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar132507.4kg
CPT100G2504″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar204007.4kg
CPT100G4004″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar326507.4kg
CPT150G4006″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar3265011.6kg
CPT150G6506″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar50100011.6kg
CPT150G10006″PN16 flangesPulse output, 1 pulse = 10 m³/hr16 bar80160011.6kg
CPT200G6508″PN16 flangesPulse output, 1 pulse = 1 m³/hr16 bar50100051kg
CPT200G10008″PN16 flangesPulse output, 1 pulse = 10 m³/hr16 bar80160051kg
CPT200G16008″PN16 flangesPulse output, 1 pulse = 10 m³/hr16 bar80250051kg

* Rangeability 1:10

OPTIONS

CPT calibration certificates
CPT Encoder 4-20 Ma or Mbus output
CPT 6-pin pulse plug and 2 metre lead
CPT high-frequency pulse output – external
CPT high-frequency pulse output – internal
CPT Remote 6-digit single LCD display Programmable installed in IP67 enclosure
CPT Chatterbox – e.Model unit, battery operated, 4 outputs, Atex IS.
common quantometer screwed

CPT-01 Quantometer - SCREWED FITTING

CPT Quantometers have been designed in order to provide our customers with reliable and inexpensive measuring instruments for secondary flow measurements. Our great experience in designing and manufacturing of turbine and rotary gas meters resulted in the development of industrial quantometers. Taking into account our customers’ demands we created the instrument with excellent metrological characteristics and operating performance close to performances of the turbine gas meters designed for custody transfer measurements. Other advantages of the CPT Quantometers are as follows: high quality, easy maintenance, wide range of external devices that can co-operate with the quantometers, e.g. volume correctors, data loggers, data transmission systems. Due to that the CPT Quantometers are well accepted by our domestic and foreign customers.

CPT Quantometers have been designed in order to provide our customers with reliable and inexpensive measuring instruments for secondary flows.

  • pressure resistant meter body
  • inlet flow conditioner
  • measuring cartridge and index head
  • magnetic coupling as the transferring elementbetween measuring
  • range extended to include 1 inch,1.¼ inch, 1.½ inch, 2 inch screwed options
  • meter for Biogas available
  • Atex approved index head
  • meter tested to 2004/22/EC MID, Annex-MI-002 Class;1.5
MWA CodeSizeConnectionQMin
m³/hr
QMax
m³/hr
CPT25SG1625mmScrewed2.525
CPT25SG2525mmScrewed440
CPT32SG2532mmScrewed440
CPT40SG4040mmScrewed665
CPT40SG6540mmScrewed10100
CPT50SG4050mmScrewed665
CPT50SG6550mmScrewed10100

RECOMMENDED ACCESSORIES

MWA CodeDescription
CPTPLUGCPT Plug and pulse lead (2 meters)
FM2525mm inline filer (50 micron)
FM3232mm inline filer (50 micron)
FM4040mm inline filer (50 micron)
FM5050mm inline filer (50 micron)
common CZAK-03

CZAK-03 Communication and Signalling Barrier

The CZAK-03 Communication and Signalling barrier is device designed for transmitting digital and analogue data as well as for power supplying EX equipment installed within the areas threatened by a risk of explosion. The device may co-operate with majority of “Ex devices” used in the gas industry and many other industry branches.

The CZAK-03 is a intrinsically safe device constructed on the base of micro-controller to cooperation with “Ex devices” generally used in the gas industry such as: electronic volume correctors, data loggers, pressure recoders or other types of  measuring transmitters and transducers.

The main functions of CZAK-03:

  • Power supplying for devices operate in EX Zone
  • Data transmission

The CZAK-03 is provided with two independent transmission channels, which are galvanically isolated one from the other. The communication channels are equipped with interface converter of RS-232/RS485 type, operating with a speed up to 115200 Bauds. Algorithms for eliminating interferences as well as anti-surge protection systems applied in the CZAK-03 ensure increased reliability of data transmissions as well as a failure-free operation of the device.

There are 4 versions of CZAK-03 power supply voltages (12VDC, 24VDC, 110VAC or 230VAC) what allows for flexible usage of this product in different configurations.

COMMON CMB-03

CMB-03 Telemetry Module

CMB-03 Telemetric Module is a universal compact device battery powered with intrinsic safe circuits. Considering the construction CMB-03 Telemetric Module can be directly connected to equipment inside the explosion zone.

Main advantage of the module is its power supply eliminating extra costs related to providing external power line. Standard supply allows to operate for 3 years with scheduled transmissions or for about 2 months with continuous readout.

Main advantage of the module is its power supply eliminating extra costs related to providing external power line. Standard supply allows to operate for 3 years with scheduled transmissions or for about 2 months with continuous readout.

Optionally it is possible to use additional amount of battery packs to increase maintenance-free work time of the device.

A complete CMB-03 Telemetric Module comprises of 2 parts: telemetric module and battery pack. Telemetric module is responsible for communication between the user and the device which is being requested. Transmission is performed via GSM network using CSD or GPRS modes. Transmission type as well as time window are configurable and up to the user. RS-GAZ2 intrinsic safe serial communication port powers the appliance only during transmission. The module has 4 bistable intrinsic safe inputs. All inputs are able to send text messages (in SMS format) with predefined content.

Front panel includes USB diagnostic-communication port and several LED diodes informing about the state of the device. Additional feature is possibility of remote programming of the module followed by remote uploading the firmware.

The CMB-03 Telemetric Module’s battery pack consists of 6 holders for easy-accessible alkaline D-size batteries (also designated R20). Moreover, power unit is equipped with battery status control and fuse with indicator what considerably elevates technical maintenance and diagnostics.

common CTS-04

CTS-04 Data Transmiter

The universal CTS-04 transmitter is a battery-operated telemetry device with a built-in GSM module , which has an explosion-proof structure and can be installed in an explosion hazard zone. The task of the transmitter is to make an autonomous, cyclic reading of data from volume converters, pressure recorders, pulse recorders and other devices equipped with the RS-GAZ2 interface.

cmk-03-800x794

CMK-03 Electronic Volume Corrector

The CMK-03 calculator is a modern, high-class battery-powered measuring and billing device that fully meets the requirements of the MID directive. It combines the unique requirements of the Polish market with experience from the solutions of our devices sold on global markets. The calculator is intended for use in gas measurement, reduction and measurement stations. It can cooperate with any gas meter (e.g. rotor, turbine, ultrasonic) which provides information about the measured volume in the form of pulses. CMK-03 is the main battery-powered calculator with external power supply. Installed batteries ensure continuous, maintenance-free measurement and data recording for a minimum of 6 years.

common CRS-03

CRS-03 Data Logger

The CRS-03 Data Logger is dedicated to work with turbine, rotary and diaphragm gas meters equipped with low frequency reed contact pulse transmitter. Its main task is to record the measured volume of flowing gas in real conditions and assign the “peak hour”, i.e. maximum hourly gas consumption together with the moment of its occurance.

A built-in display, permanently active, enables accesspromptly to the most important information for the user.

Recorded information can be passed on via Text messages (built-in GSM module) as well as via OPTO-GAZ optical connection with a suitable optical interfacewhich additionally enables to configure the device locally.

FEATURES

Nice flexible communication between user and CRS-03 Data Logger assured by:
 LCD display with good visibility in the whole range of temperatures
 Possibility of direct configuration and receiving data via OPTO-GAZ optical connection
 Base softwarewhich enables to read outautomatically the device
Two inputs
 LF low frequency reed contact pulse transmitter connected with Vm (V1) counter (f<10Hz)
  
 LFb two-position, changing of the state on input can cause instantaneous giving an alarm via SMS  (Short Text Message). Used for cooperation with anti-fraud contact, signaling a brokenpulse conduit or detection of eventual manipulation
  
  
Minimum 5 years of work without necessity of battery replacement for standard working conditions
 
Recorded data (every 1 hour) stored for at least 280 days
Changeable reporting period and the time of sending, possibility of sending detailed data “on request”
 
   

COMMUNICATION

Via SMS messages – built-in 900/1800MHz GSM module assures duplex communication via SMS messages between servers and CRS-03 Data Logger  as well as configuration of the CRS-03 Data Logger. Standard message consist of Vm (V1) counter state, increase of reporting period, “rush hour” of reporting period, date and time of reporting period appearance, date and time of sending the report, battery status. On request detailed hour data are sent.
Via OPTO-GAZ which enables to read out the recorded data locally and to configure the device
   

BASE RECEIVING SERVER

GSM Modem
Computer with software which enables to read out and gather information and configure the device. Software provided by COMMON S.A. enables to:
 Configure the device
 Service automatically the CRS-03 Data Loggers (i.e. sending orders to all/chosen group of devices)
 Make reports set by user in requested period of time
DISPLAY
9-digit LCD display with symbols (battery status, OPTO-GAZ, Rx, Tx, GSM signals etc.)
good visibility in the whole range of temperatures
     
DIMENSIONS
110 x 75 x 60 mm without couplings
     
ANTENNA
Internal or external (option)
     
CLOCK
Internal clock synchronized with GSM network  
     
INTRINSIC SAFETY DESIGNATION
II 3G(2)G EEx nA[ia] IIA T4 – guarantees the possibility of mounting  the CRS-03 Data Logger in EX zone in vicinity of the gas meter (container, case etc)
     
WORKING CONDITIONS
Ambient temperature range-25°C ÷ +55°C
Temperature range of the GSM module-20°C ÷ +55°C
IP protectionIP65
     
SUPPLY
Internal lithium battery guarantees 5 years of work without necessity of replacement for standard working conditions
     
OUTPUTS (option)
OUTpulse signaling output informing about exceeding the contractual power (configured by OPTO-GAZ) and LED diode informing about the state of the outputs (excess)
LFOUTpulse output mapping LF internal signal (i.e. for further process in automation devices)
     
MEMORY OF RECORDED DATA
Data about alarms/situations256 logs
Registered data logsMinimum 9 months (recorded every hour)
Daily data logs128 days
Month data logs32 months
  
COMMUNICATION PROTOCOL
GAZ-MODEM 1 
GAZ-SERWIS 
SMS (own format of sending information)

ACCESSORIES

COMMON COGUSB-03

COGUSB-03 Optical Transmission Interface

The COGUSB-03 Optical Transmission Interface is designed to enable data transmission between the device inside the explosion hazard zone (e.g. CMK-02 Volume Corrector) and non-EX device equipped with USB port outside explosion hazard zone (e.g. laptop). Data transmission is based on two infrared diodes, one for sending and the other receiving data. Interface head should be placed on the OPTO-EYE port located in the read out device. Permanent magnet inside the head activates the superior port which allows to perform the transmission.

Transmission speed is up to 38400 baud. The interface consists of three parts:

  • Head (aluminium casing) with OPTO-GAZ port and permanent magnet
  • Status adapter with RxD and TxD diodes
  • USB plug

The COGUSB-03 Optical Transmission Interface is dedicated for all computers without a hardware COM port. Appliance needs a driver to be installed. Application is built up to open the same COM port regardless of used socket. 

common Top Hat filters (cone type)
hat-filters-400x276

Top Hat filters (cone type)

Top Hat Filters (Temporary strainers) are designed for use during the commissioning or start-up period of installation. They protect the control equipment in the system from dirt, debris and any other foreign bodies that may pass through a new system. The Top Hat Filter is added to a new system at the time of installation and removed after the system has been cleansed. Top Hat Filters are easy to fit and are located between the mating flanges in the pipeline – If you are adding a Commissioning filter to a vertically installed meter, we recommend adding a filter to both the inlet and outlet.

Connection Size – 50-150mm

common Three-way valve CKMT DN4

Three-way valve CKMT DN4

The CKMT DN4 three-way valve is used in petrochemical industry installations, in gas measurement systems and other installations. It can be used in rooms with a risk of explosion of vapors and gases of the A, B, C explosion groups, in group II of explosion-proof devices.

CGZW Single Chamber Orifice Flowmeter

CGZW Single Chamber Orifice Flowmeter

The CGZW Orifice Flowmeters are designed for volume measurement of flowing gas, and may be used for the following purposes:

  • custody transfer measurements of flowing gas,
  • flow measurements in transmission and distribution gas pipelines,
  • control measurements of flowing gas

The operating principle is based on the pressure drop caused by a contraction. Basing on the differential pressure of the flow the gas volume may be determined.

The CGZW Flowmeters are manufactured as single chamber fittings with removable orifice plate, and appropriate meter tubes. The fitting construction enables to access the orifice plate easily and quickly for inspection and replacement. lt is not necessary to disassemble and spread flanges. One of characteristic features of the CGZW Flowmeters is easy control of leakages around the orifice plate.

GENERAL TECHNICAL DATA (CGZW SINGLE CHAMBER ORIFICE FLOWMETER)

Nominal diameters:

from DN50 (2″) up to DN400 (16″)

Pressure range:

up to PN110

Connections:

welding neck or flanged

Temperature range:

gas: -20°C ÷ +60°C

 

ambient: -25°C ÷ +70°C

The CGZW Flowmeter consists of three following assemblies:

  • Upstream meter tube,
  • Single chamber orifice fitting with removable orifice plate,
  • Downstream meter tube with two temperature wells.