Teplopribor group of companies (GC) (Teplopribor, Prompribor, Teplokontrol, etc.)- these are devices and automation for measuring, controlling and regulating the parameters of technological processes (flow metering, heat control, heat metering, control of pressure, level, properties and concentration, etc.).
At the price of the manufacturer, products are shipped both of our own production and of our partners - leading factories - manufacturers of instrumentation and control equipment, control equipment, systems and equipment for control technological processes- APCS (much is available in stock or can be manufactured and shipped as soon as possible).
RVG meters gas rotary
RVGrotary gas meters(G16; G25; G40; G65; G100; G160; G250; G400) are used for technological and commercial accounting of the volume of non-aggressive, dried and purified gases: natural and city gases, propane, air, nitrogen, inert gases, etc. in thermal power plants industrial, municipal and other enterprises.
Rotary gas meter RVG works on the principle of displacement of a strictly defined volume of gas by rotating rotors. The volume of displaced gas is determined by the volume of the measuring chamber of the counter formed by inner surface body and surfaces of two synchronously rotating in opposite directions rotors. The rotational movement of the rotors through the reducer and the magnetic coupling is transmitted to an 8-digit counting mechanism, which registers the number of revolutions of the rotors, and hence the volume of gas that has passed through the counter.
Gas meter RVG registers the volume of gas under operating conditions. To bring the measuring volume of gas to the volume at standard conditions counter RVG can be equipped with electronic correctors EK270, EK260 or TS220, TS215, TS210.
Distinctive features of the gas meterRVG
— Range of measured flow rates from 0.6 m³/h to 650 m³/h;
– Working gas pressure is not more than 1.6 MPa;
— Flow measurement range Q min / Q max: up to 1:160
— Temperature ranges:
environment from −40 to +70°С;
measured medium from −30 to +70°С;
— Limits of permissible relative error of the main version:
no more than ±1% in the range of costs from 0.1Q max to Q max;
no more than ±2% in the range of flow rates from Q min to 0.1Q max;
- Limits of permissible relative error of the additional version, which has the letter "U" in the designation:
no more than ±1% in the range of costs from 0.05Q max to Q max;
no more than ±2% in the range of flow rates from Q min to 0.05Q max;
- Calibration interval 5 years.
The main characteristics of the gas meterRVG
— high metrological characteristics;
— wide range measurable costs;
— low pressure loss on the counter;
- speed and high accuracy in the pulse mode of operation;
— lack of requirements for the length of straight sections, misalignment of the meter and the pipeline and the degree of non-circularity of the pipeline;
- installation on horizontal and vertical sections of the pipeline;
— independence of measurement accuracy from pressure and the nature of the gas flow in the network;
— the ability to work with electronic proofreaders EK270, EK260*, EK-88*, TS220, TS215*, TS210*, TS-90*;
— the possibility of using a high-frequency A1K and a mid-frequency R300 sensor in SG-EK complexes with an EK270 corrector to control gas flow;
- energy independence.
* - electronic correctors are out of production
| Counter type | Sensitivity threshold, m3/h | Flow range, Qmax/Qmin | Qmax, m3/h | 2*LF(E1), imp/m3 (standard) | HF(A1K), imp/m3 (optional) | Differential P at Qmax, Pa |
| G16 | 0,1 | 1:30 | 25 | 10 | 14025 | 45 |
| G25 | 0,1 | 1:30; 1:50; 1:65 | 40 | 10 | 14025 | 75 |
| G40 | 0,1 | 1:30; 1:50; 1:65; 1:80 | 65 | 10 | 14025 | 180 |
| G65 | 0,1 | 100 | 10 | 14025 | 390 | |
| G100 | 0,16 | 1:30; 1:50; 1:65; 1:80; 1:100; 1:160 | 160 | 1 | 7528 | 390 |
| G160 | 0,25 | 1:30; 1:50; 1:65; 1:80; 1:100; 1:160 | 250 | 1 | 3882 | 525 |
| G250 | 0,40 | 1:30; 1:50; 1:65; 1:80; 1:100; 1:160 | 400 | 1 | 3187 | 975 |
| G400 (Dy100) | 0,65 | 1:30; 1:50; 1:65; 1:80; 1:100; 1:160 | 650 | 1 | 2191 | 1100 |
| G400 (Dy150) | 0,65 | 1:30; 1:50; 1:65; 1:80; 1:100; 1:160 | 650 | 1 | 2191 | 1100 |
Two low-frequency pulse sensors E1 (reed contact), one of which, when working with an electronic corrector, is used to count pulses, the second - to provide the ability to control unauthorized intervention. By special order RVG gas meters are equipped with a medium-frequency sensor E300 and a high-frequency sensor A1K. Combination various types impulse sensors allows you to use gas meter RVG in systems of automatic regulation and control.
Rotary gas meterRVGG100 manufactured by "ELSTER Gaselectronics" is intended for measuring, collecting, storing and transmitting readings on the consumption of consumed natural gas or other working environment that cannot harm the meter parts. The counter is suitable for such gas environments as argon, nitrogen, air. The device must not be used for oxygen and hydrogen! Before gas enters the device, the working environment must be dried and cleaned. To use the device for commercial purposes (commercial accounting), it is possible to connect electronic correctors of the type EK 270, SPG 741 (761), TS 220, VKG 2. Due to the absence of the device electrical circuit it does not have explosion protection categories.
According to climatic version rvg gas meterg100 corresponds to category C according to GOST R 52931-2008.
Counter rvgg100 able work on a gas pipeline under gas pressure up to 1.6 MPa at a relative humidity of up to 95%. All specifications summarized in one table.
Technical characteristics of RVG G100.
| Parameter name | Parameter value |
| Working pressure, MPa, no more | 1,6 |
| Relative humidity up to, % | 95 |
| Ambient temperature, °С | -40 +70 |
| Working environment temperature, °C | -30 +70 |
| Relative measurement error, % | |
| in the flow range from Qmin to 0.1Qmax | ±2 |
| in the flow range from 0.05Qmax to Qmax | ±1.0 |
| Calibration interval, years | 5 |
| Average service life, years, not less | 12 |
| The degree of protection of the meter against the ingress of dust and water | IP54 according to GOST14254 |
| Meter body material | Aluminium alloy |
| Nominal diameter, mm | 50 |
| Dynamic measuring range | 1:30 |
| Maximum possible increase in measuring range | 1:160 |
The sensitivity threshold of the device is a gas flow rate of 0.16 m3/hour. The counter has a counting mechanism with a capacity of 10 7 . The price of the division of the roller with the smallest digit is 0.1. The measuring chamber has a volume of 1.07.
The composition of the counter.
Structurally, a case can be distinguished from the composition of the counter, with two bases in which bearings are built. Rotors synchronously rotating by means of gears (2 pcs.). Multi-stage gearbox, magnetic clutch and counting mechanism. All parts that have direct contact with the working medium are made of a special aluminum alloy with an anti-corrosion coating.
The device and principle of operation of the RVG G100.
The basic principle of operation of the device is the displacement of a certain amount of gas by rotors that rotate in different directions. The amount of gas that is displaced by the rotors is calculated depending on the volume of the measuring chamber of the device. The measuring chamber is formed by the internal volume of the meter body and the surface of the rotors. Rotation from the rotors is received by a gearbox and a magnetic clutch, which in turn transmit further movement counting mechanism. The counting mechanism can be rotated by 355°. This greatly simplifies the reading of the instrument readings. To measure the inlet and outlet pressure, there are places on the device body for connecting pressure sensors. For temperature sensors, there are also places for installation. Gas filter, which must be installed in front of the meter in without fail, can be mounted directly to the meter.
The meter is checked every 5 years. Verification can only be carried out by specialized service centres or manufacturer. Meters can be installed both vertically and horizontally. G100 are produced with nominal bore 80mm.
Overall dimensions of the counter.
| Dimensions, mm | Weight | ||||||||||
| Dy | Dk | DL | A | B | C | E | F | H | K | L | |
| 80 | 160 | 8 M16 | 435 | 165 | 272 | 180 | 171 | 228 | 290 | 141 | 16 |
Basic information:
Range of measured costs: from 0.6 m3/h to 650 m3/h
Flow measurement range Qmin / Qmax: up to 1:160
Calibration interval: 5 years
Price on request
Rotary gas meters are devices for measuring the volume of gas, the principle of their operation is based on the displacement of gas by rotors. They record the volume of gas under operating conditions.
To bring the measured value to a normal volume, electronic volume correctors of the EK-88, TS-90, EK-260 types are used. Gas flow range: from 0.8 m3/h to 400 m3/h. Maximum operating pressure: 1.6 MPa.
Application area
Wednesday: natural gas, city gas, propane, inert gases, air. Branches: gas supply, thermal power engineering, chemical industry. Tasks: measurement, control, automatic regulation.
Distinctive features
Over the years, RVG gas meters have proven themselves in operation, especially in cases where high measurement accuracy and compact design are required. Rotary gas meters RVG types are the ideal complement to turbine meters for flow rates from 0.8 m3/h to 400 m3/h. High quality design, component parts, materials guarantee high measurement accuracy, durability and reliability. RVG gas meters are equipped with two low-frequency pulse sensors E1 (reed contact). At the request of the customer, RVG gas meters are equipped with a medium-frequency pulse sensor E300 and a high-frequency sensor A1K. The combination of various types of impulse sensors allows the use of the RVG gas meter in automatic regulation and control systems.
RVG gas meters are distinguished by:
- low inertia of rotors at variable loads (expenses);
- low pressure loss (20 - 40 mm w.c.)
Installation and maintenance
Due to its principle of operation, the RVG gas meter does not require straight pipeline sections. Installation can be carried out both on a horizontal and on a vertical section of the gas pipeline. The oil level must be checked and maintained regularly. During operation, it is recommended to use filters or a conical sieve to trap particles larger than 0.25 mm. If the gas is very contaminated, then it is necessary to use an additional filter that traps particles larger than 0.05 mm.
Technical characteristics of industrial gas meters RVG
| Counter type | V (dm 3) | Sensitivity threshold (m 3 / h) | Qmin (m 3 /h) | Qmin (m 3 /h) |
| G16 | 0,56 | 0,1 | 0,8 | 1,3 |
| G25 | 0,56 | 0,1 | 0,8 | 2 |
| G40 | 0,56 | 0,1 | 1 | 3,2 |
| G65 | 0,56 | 0,1 | 1 | 5 |
| G100 | 1,07 | 0,16 | 1,6 | 8 |
| G160 | 2,01 | 0,25 | 2,5 | 13 |
| G250 | 2,54 | 0,4 | 4 | 20 |
| Qmax (m 3 /h) | 2*LF (E1) (imp/m 3) (standard) | MF (E300) (imp/m 3) (optional) | HF (A1K) (imp / m 3) (additional) | p(mbar) at Qmaxat nat. gases, \u003d 0.83 kg / m 3 |
| 25 | 10 | 200 | 14025 | 0,2 |
| 40 | 10 | 200 | 14025 | 0,5 |
| 65 | 10 | 200 | 14025 | 1,2 |
| 100 | 10 | 200 | 14025 | 2,6 |
| 160 | 1 | 20 | 7528 | 2,3 |
| 250 | 1 | 20 | 3882 | 2,9 |
| 400 | 1 | 20 | 3187 | 3,9 |
Documentation Prices Consultation and order
Teplocom-Service Moscow is ready to accept your application for a gas meter rotary RVG. This model is available for you to order and can be promptly delivered to your address. The specialization of our company is gas equipment, so the offer includes a full range of services for the client:
- sale of counters;
- warranty obligations;
- service maintenance of purchased equipment;
- installation and configuration services;
- verification services;
- repair services.
All sizes available, including:
- G-100
- G-160
- G-250
- G-400
- G-400.
Rotary gas meter RVG is reliable, accurate and affordable
The scope of this model is quite extensive. The product can be used to account for the consumption of gases that belong to the group of non-aggressive gases, taking into account the drying and purification of the gas. These are the groups of gases:- natural gas;
- propane;
- air;
- nitrogen;
- inert gases.
The principle of operation of this model is based on the technology of displacement of a strictly defined volume of gas by rotating rotors. The movement of the rotors is transmitted to the counting mechanism, which fixes the number of revolutions of the rotors. Thus, the volume of gas is calculated.
It is important to emphasize that the rotary gas meter G40, G16 - up to size G400, records the gas consumption under operating conditions. To bring the volume to standard conditions, this model is equipped with electronic correctors of the following types:
- EK270;
- EK260;
- TC220;
- TS215;
- TS210.
Advantages and distinctive features:
- high metrological characteristics;
- a wide range of measured costs;
- low pressure loss across the meter;
- speed and high accuracy in the pulse mode of operation;
- lack of requirements for the length of straight sections, misalignment of the meter and the pipeline, the degree of non-circularity of the pipeline;
- installation on horizontal and vertical sections of the pipeline;
- independence of measurement accuracy from the pressure and nature of the gas flow in the network;
- the ability to work with electronic correctors EK270, TS220, Corus, SPG742
- the possibility of using a high-frequency A1K and a mid-frequency R300 sensor in SG-EK complexes with an EK270 corrector to control gas flow;
- energy independence.
- The range of measured flow rates is from 0.6 m³/h to 650 m³/h;
- Working gas pressure is not more than 1.6 MPa;
- Flow measurement range Qmin / Qmax: up to 1:160
- Temperature ranges:
- environment from −40 to +70°С;
- measured medium from −30 to +70°С;
Limits of permissible relative error of the main version:
- no more than ±1% in the flow rate range from 0.1Qmax to Qmax;
- no more than ±2% in the range of flow rates from Qmin to 0.1Qmax;
Limits of permissible relative error of the additional version, which has the letter "U" in the designation:
- no more than ±1% in the flow rate range from 0.05Qmax to Qmax;
- no more than ±2% in the range of flow rates from Qmin to 0.05Qmax;
- Calibration interval 5 years.
Measuring ranges of the RVG rotary gas meter:
|
Size |
Conditional pass DN, mm |
m 3 / h |
Operating flow range Q min / Q max |
Pressure drop, Pa |
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|
Qmin, m 3 / h |
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Rotary gas meters type RVG are designed to measure the volume of gas under working conditions (purified and dried: natural and city gas, propane, nitrogen, compressed air and inert gases) in thermal power plants of industrial, municipal and other enterprises, for commercial accounting of consumed gas. For the accounting OXYGEN counter use forbidden!
Before the meter, it is necessary to install a filter for gas purification from mechanical impurities (the size of solid particles in the measured gas, according to the largest measured value, should not exceed 0.08 mm).
The RVG gas meter registers the volume of gas under operating conditions. To bring the measuring volume of gas to the volume under standard conditions, the RVG meter can be equipped with electronic correctors EK270 or TC220.
Distinctive features of RVG gas meters:
- high reliability and measurement accuracy with pulsating and intermittent gas flow
- small inertia of the mechanical system
- wide measuring range
- low pressure loss across the meter
- no requirements for the length of straight sections, misalignment of the meter and the degree of non-circularity of the pipeline
- the ability to work with electronic proofreaders EK-270, TS-220
- work on horizontal and vertical sections of the gas pipeline
- independence of measuring accuracy from gas pressure in the network
Main technical characteristics
| Product parameters | RVG G16 | RVG G25 | RVG G40 | RVG G65 | RVG G100 | RVG G160 | RVG G250 | RVG G400 | |
|---|---|---|---|---|---|---|---|---|---|
| Ambient temperature range, °С | -40 to +70 | ||||||||
| Measured medium temperature range, °С | from -30 to +70 | ||||||||
| Maximum working pressure, MPa (kgf/cm²) | 1,6 (16) | ||||||||
| Nominal diameter, mm | 50 | 80 | 100 | 100 / 150 | |||||
| Maximum throughput at pressure close to atmospheric, m³/h | 25 | 40 | 65 | 100 | 160 | 250 | 400 | 650 | |
| Measuring range of gas volume, Q min / Q max | 1:30 | 1:30, 1:50, 1:65 | 1:30, 1:50, 1:65, 1:80 | 1:30, 1:50, 1:65, 1:80, 1:100, 1:160 | |||||
| Measurement error of gas meters RVG | no more than ±1% in the flow rate range from 0.1Q max to Q max no more than ±2% in the range of costs from Q min to 0.1Q max |
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| Overall dimensions, mm | - length L | 171 | 241 | 260 | |||||
| - width B | 335 | 435 | 469 | 529 | 660 | ||||
| - height H | 222 | 278 | 308 | ||||||
| Weight, kg, no more | 12 | 16 | 33 | 39 | 50 / 56,5 | ||||
| Calibration interval | 5 years | ||||||||
| Service life, years, not less | 12 | ||||||||
