CGT-02 TURBINE GAS METER

Hãng sản xuất:

COMMON

Mã sản phẩm:

CGT-02

ĐỒNG HỒ LƯU LƯỢNG GAS DẠNG TURBINE
Model: CGT-02
Hãng sản xuất: COMMON

Pressure rating:	PN10 to PN110, ANSI150 to ANSI600	other rates on request
Nominal diameter:	DN50 up to DN400 standard range	other on request
Meter bodies:	ductile iron or steel	details in table 4
Flow:	5 to 10 000 m3/h	other on request
Rangeability:	1:20 minimum at atmospheric pressure	increased 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%

LH: 0901268208

ĐỒNG HỒ LƯU LƯỢNG GAS DẠNG TURBINE
Model: CGT-02
Hãng sản xuất: COMMON

The CGT-02 turbine gas meters are flow meters designed to measure quantity of gases. The meters are 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

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

DN		G	Maximum Flow Qmax [m³/h]	Minimum flow Qmin [m³/h]	LF Pulse rate [m3/pulse]
mm	inch	G	Maximum Flow Qmax [m³/h]	Minimum flow Qmin [m³/h]	LF Pulse rate [m3/pulse]
50	2	65	100	5	10
80	3	100	160	8	1
		160	250	13
		250	400	20
100	4	160	250	13	1
		250	400	20
		400	650	32
150	6	400	650	32	1
		650	1000	50	1
		1000	1600	80	0,1
200	8	650	1000	50	1
		1000	1600	80	0,1
		1600	2500	130	0,1
250	10	1000	1600	80	0,1
		1600	2500	130
		2500	4000	200
300	12	1600	2500	130	0,1
		2500	4000	200
		4000	6500	320
400	16	2500	4000	200	0,1
		4000	6500	320
		6500	10000	500

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

Gas	Chemical symbol (formula)	Density ρ [kg/m³]	Density related to air	Gas meter execution
Argon	Ar	1,66	1,38	standard IIB
Butane	C₄H₁₀	2,53	2,10	standard IIB
Carbon dioxide	CO₂	1,84	1,53	standard IIB
Carbon monoxide	CO	1,16	0,97	standard IIB
Ethane	C2H6	1,27	1,06	standard IIB
Ethylene	C2H4	1,17	0,98	standard IIB
Helium	He	0,17	0,14	standard IIB
Methane	CH4	0,67	0,55	standard IIB
Natural gas	–	~0,75	~0,63	standard IIB
Nitrogen	N2	1,16	0,97	standard IIB
Propane	C3H8	1,87	1,56	standard IIB
Acetylene	C2H2	1,09	0,91	special IIC
Hydrogene	H2	0,084	0,07	special IIC
Air	–	1,20	1,00	standard IIB