Residential Diaphragm Gas Meter
Residential Diaphragm Gas Meter
Residential Diaphragm Gas Meter
G1.6 /G2.5 /G4
Description
Residential diaphragm gas meters G1.6, G2.5, G4 are gas volume measurement instrument for coal gas, natural gas, LPG and all non-corrosive gases. It is designed and developed according to world advanced technology, based on our rich experience, with the merits of small size, light in weight, accurate measurement, high sensibility, low noise. This series gas meters are all certified by Chinese standards GB/T6968-1997 and international standard OIML R31.
Features
● Compact Size, light weight
● Stable accuracy and smooth operation
● High metrological performance, low noise level
● Low pressure loss
● Pulse output (optional)
Functions
● Inner rotary parts of self-lubricating materials.
● Case: steel, inlet & outlet connection, digital display.
● Synthetic rubber for diaphragm with long service life.
● Equipped with anti-theft device to prevent reverse flow of gas through the meter.
● Magnetic transmission for volume indication keeps excellent air tight.
● Rotary valve operation type ensures long time stable, smooth operation and minimum wear.
● High quality plastic and stainless metal components, plastic coating inside and outside the cases ensure the meter’s long-life service.
Standards
GB/T 6968-1997 Diaphragm gas meter
JJG 577-2005 Diaphragm gas meter
ISO9001:2008
OIML R31
Dimensions
Item | Measure (mm) | |||||
A | B | C | D | E | F(Thread) | |
G1.6 | 130(110) | 227 | 214 | 164 | 70 | M30×2 |
G2.5 | 130(110) | 227 | 214 | 164 | 70 | M30×2 |
G4 | 130(110) | 227 | 214 | 164 | 70 | M30×2 |
Technical Characteristics
Description | G1.6 | G2.5 | G4 | |
Rated flow rate qn m3/h | 1.6 | 2.5 | 4 | |
Max. flow rate qmax m3/h | 2.5 | 4 | 6 | |
Min.flow rate qmin m3/h | 0.016 | 0.025 | 0.040 | |
Permissible Error | qmin≤q＜0.1qmax | ±3% | ||
0.1qmax≤q≤qmax | ±1.5% | |||
Working Pressure kPa | 0.5 – 50 | |||
Pressure Loss Pa | ≤50 | ≤110 | ≤170 | |
Cyclic volume dm3 | 1.2 | |||
Max. Reading m3 | 99999.999 | |||
Min. Reading dm3 | 0.2 | |||
Ambient Temperature ℃ | －30 ～ ＋50 | |||
Net Weight kg | 2 | |||
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