Flow meter gas vemmtec

Definisi Gas Meter

Alat untuk mengukur kuantitas atau laju aliran gas. Jenis meter gas (berdasarkan prinsip operasi) termasuk perpindahan, kecepatan, kepala, termal, akustik, dan pelacak. Contoh dari prinsip perpindahan adalah meteran gas bellow-dan-diafragma (ditunjukkan dalam diagram).

Tubine gas meter / flow meter gas turbine

Selama pengukuran, molekul gas cenderung berjalan melalui meteran secara terus menerus, yang menghasilkan denyut selama kalibrasi. Peredam suara dapat digunakan untuk menghindari kesalahan pengukuran yang signifikan.Sistem roda gigi, roda turbin, bagian ekstrusi, dan unit rumah tertutup adalah komponen utama meter turbin.Saat gas mengalir, roda turbin mulai berputar. Putaran roda turbin sebanding dengan kecepatan aliran. Oleh karena itu, volume gas dapat dihitung sehubungan dengan putaran roda.

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Deskripsi

Sizes, Flow Rate and Flanges Flow meter gas vemmtec

The available nominal diameter of the IGTM gas turbine meter ranges from 50 mm (2″) to 400 mm (16″). Other sizes are available on request.
The IGTM can be delivered with G rates ranging from G40 to G4000, which means that IGTMs are available for flow rates from 10 m3/h to 10 000 m3/h.
The relationship between G value and flow rate for each diameter is shown in table 3 on the last page of this brochure.
Carbon steel or stainless steel IGTMs can be manufactured either with ANSI flanges or with DIN flanges in the ranges:
ANSI 150RF – ANSI 600RF PN 10 – PN 100
Ductile Iron (EN-GJS-400-18-LT; GGG 40) meter bodies are available in diameters from 50 mm (2″) to 200 mm (8″) and pressure class PN10 – PN16 and ANSI 125RF – ANSI 150RF

Accuracy Flow meter gas vemmtec

Standard accuracy limits for CT-models are in accordance with the EC directives and many foreign regulations:
a.± 1% for 0.2 Qmax to Qmax
b. ± 2% for Qmin to 0.2 Qmax

As an option for the CT model the accuracy limits can be
improved to:
a. ± 0.5% for 0.2 Qmax to Qmax
b ± 1% for Qmin to 0.2 Qmax
These limits are valid for the meter performance in ambient air. Usually, the performance is better at high-pressure applications.
On request we can offer meters according to your accuracy specification. The repeatability of the vemm tec IGTM is better than 0.1% Typical performance curves at different pressures are shown in picture 1.

Approvals Flow meter gas vemmtec

The IGTM is specifically designed in accordance with all relevant and published standards, like EC directives, EN 12261, AGA 7, ISO 9951, OIML R6, R32, and R137-1.
Many national standards and laws are based on the above. The IGTM-CT meter is approved for custody transfer in all EC (European Community) countries. Metrological approvals are also obtained in Brazil, Bulgaria, Hungary, Czech Republic, Romania, Algeria, Malaysia and China, others are in process.
The IGTM is specifically designed in accordance with all relevant and published standards, like EC directives, EN 12261, AGA 7, ISO 9951, OIML R6, R32, and R137-1.
Many national standards and laws are based on the above. The IGTM-CT meter is approved for custody transfer in all EC (European Community) countries. Metrological approvals are also obtained in Brazil, Bulgaria, Hungary, Czech Republic, Romania, Algeria, Malaysia and China, others are in process.

Turbine gas meter Itron

Flow Meter GAS