01) Turbine Meter :
Type of Gas :
Natural Gas with specific gravity = 0.6 (air = 1.0) and water content
not more than 7 Ibs/MMSCF and condensate not more than 2US
gallons per MMSCF.
1.2) Type of Meter :
Turbine type meter for custody transfer according to AGA-7 report.
1.3) Operating Temperature : 00C to 500C.
1.4) Working Pressure : 150 psig.
1.5) Material of main parts of the meter : 1.5.1)
Body : Ductile iron or steel.
1.5.2) Turbine wheel : Aluminum.
1.5.3) Meter module : Aluminium.
1.5.4) Index head :
Dust and water proof Suitable for outdoor installation according to
IP65 or 66 or 67.
1.5.5) Shafts and Bearings : Stainless Steel.
1.6) Flow conditioner and straightening vane :
Built-in (made of Stainless Steel/ Brass/ Aluminium Alloy/Superior Material).
For eliminating Substantial turbulence, swirls or asymmetric flow profiles and
directing flow of gas into the turbine blades. To be fitted directly at the meter
1.7) Meter length :
3x Nominal Diameter.
1.8) Index :
Direct reading in cubic meter as per OIML R-32 ( Latest version)
recommendation, adometer typ, 8 (eight) digits and fitted with low frequency
(L.F) pulse output. Index to be water proof, dust proof, magnet proof and
1.9) Base Rangeability : for 2" 10:1 (min)
for 3" & above 20:1 (min )
Measuring Accuracy :
i) Qmin 0.2 Qmax = +1%
ii) 0.2 Qmix - Qmax = + 0.5% or better
Lubrication : Meter is to be equipped with lubrication pump of chrome
plated brass or steel.
1.12) Sealing :
i) Index and other parts of the meter shall be properly sealed with lead or
other suitable material embossed with distinct manufacturer's Trade Mark to
avoid any unauthorized tampering.
ii) Any pressure test point or tapping connection shall be sealed
as per ISO 9951 /OIML/European Standard.
1.13) Reapetability : + 0.1% or better.
1.14) Mode of Application : Custody transfer application.
1.15) Orientation of Installation meter will operate properly on both
Horizontal/ Vertical installation as per ISO 9951/OIML/European Standard .
1.16) Quality Assurance : As per ISO 9001
1.17) Calibration Certificate : Shall have to be supplied with each meter as
per ISO 9951/OIML/European standard
1.18) Manufacturing : Meter is to be manufactured as per international
standard of ISO 9001/OIML/European standard.
1.19) Connection type : RF Flange ANSI Class 150
1.20) Connection Size, G- Rating and Capacity :
As mentioned in the Materials Schedule.
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