Chem-Tech Associates is one of the best dealer and domestic Supplier of ACD G10 – G16 Diaphragm Meter. We are the authorized dealer of Itron. Our new generation Itron Diaphragm G10-G16 Meters combine accuracy and long life in a compact casing. Together with our Proven Know- How in gas measurement and the use of modern engineering and production techniques we have developed this smaller size, highly accurate meter ensuring reduced shipping costs and easier handling and installation. Our range of ASD G10-G16 meters are designed for commercial use for gas suppliers and gas utilities worldwide.
Principle of Operation
The Movement of the diaphragm is caused by the pressure difference between the inlet and the outlet of the meter. The reciprocal filling is controlled by means of two sliding valves.
This oscillating movement is transformed in to a rotational one and is mechanically transmitted to the totaliser through a magnetic coupling or a stuffing box.
Description
The ACD G10-G16 Contain 4 main parts
● A Measuring Unit with
- 4 measuring chambers
- 2 sliding valves
- and one outlet pipe
● A steel casing fitted with one or two connections
● A magnetic Coupling or stuffing box which transmits the movement of the measuring unit to the totaliser
● A Totaliser which registers the measured gas.
Application
The ACD diaphragm meters are used for application requiring high precision and large range ability at low pressure (below 1 bar gauge).
They are supplied in two versions-
A compact and a standard version (single and two pipe). Due to the volumetric principle of the diaphragm meters, its metrology is not influenced by installation conditions.
They are designed for use with natural gas, manufactured gas and other non – corrosive gases. The ACD diaphragm meters are approved for fiscal use.
● ACD compact casing 250mm
● ACD compact casing 280mm
● ACD Measuring Unit
-- Long Term accuracy and reliability
-- Robust, Maintenance free meter
-- Compact design
-- MID approved
-- High resistant corrosion Protection
-- Low Frequency transmitter retrofit
● Totaliser with LF “Cable”
● Totaliser with LF “Binder”
● Totaliser with Double LF “Binder”
● Thermowell fitted onto an ACD standard
Features
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Flow rate range |
G10: G16: |
Qmin 0.10 m3/h- Qmax 16 m3/h Qmin 0.16 m3/h- Qmax 25 m3/h |
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European Metrological Approval (71/318/EEC) (04/22/EC) |
Approval achieved by the German PTB as G6. G10 & G16 (Multi-range available) Approval N0 PTB -1. 42-4016867 Approval N0 DE- 07-M002-PTB013 |
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Metrology |
In accordance with the EN1359 and MID Maximum permissible errors are +/-3 % from Qmin to 0.1 Qmax And +/-1.5% from 0.1 Qmax to Qmax. |
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Starting Flow |
Typical Value: |
< 8 dm3/h |
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Temperature range |
Amblent: Gas: Storage Temperature: |
-250C to +550C -250C to +550C -40C to +700C |
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Maximum Pressure |
Compact Version: Standard Version: |
0.5 bar 0.5 bar (1 bar optional) |
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Connections |
Single Pipe or 2 Pipe Connections From DN32 to DN50 depending on the G-Size Other connections are available on request |
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Totaliser |
8-digit index with IP54 protection. UV resistant cover. Fitted with a reflecting disc on the first drum to facilitate periodical checks. Prepared with a magnet in the first drum (0.1 m3/pulse) or second drum ( 1 m3/pulse) for retrofitting an external low frequency transmitter. Customized name plate: bar code, customer serial number or logo |
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Magnetic Coupling |
The meter is equipped as standard with a magnetic coupling. As an alternative a stuffing box can be also installed. |
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Backrun Stop |
Prevents the meter from running backwards in case of tampering. |
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RPF ( Resistant Power Factor) |
According to PRS 11(< 1.2) |
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Materials |
Casing: Measuring Unit body: Diaphragms: Distribution Valves and grid: |
Aluminum- coated sheet steel Polyacetal (POM) Polyester fabric coated with NBR- ECO Phenol resin |
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Corrosion Protection |
Depending on version: -Aluminum – coated+ Solvent- free paint - powder coating |
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Colour |
Light Grey RAL 7035 |
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Options
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External Low Frequency Transmitter |
An external Low Frequency transmitter fitted with cable or binder plug can be retrofitted without decommissioning the meters. |
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Thermowell |
The meters can be fitted with a termowell to allow electronic temperature compensation. |
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High Temperature Loading (HTL) |
The meters can be delivered in a HTL version following EN1359 PNO,1 |