ultrasonic flowmeter

i want to install two ultrasonic flow meters at flare lines(cold and hot lines) what is the required data and the price of flowmeter ​,
please i want your assistance as soon as possible,
best regards, 
  • Following Are the required Data:

    Fluid
    Gas Composition of Flowing Gas
    Line pressure
    Line Temp
    Limiting Velocity (generally 20 m/sec as per AGA 9)
    MOC of the Meter
    Area Classification
    How much Path required in USM
    Min Max flowrate
    Suitable Body material of USM as per Flowing Gas
    Suitable Transducer material as per Flowing Gas
    Type of calibration required (Wet calibration OR dry calibration)
    Type of Inspection required.
    type of Material test certificates required
  • Fluid : dry processed sales natural gas
    Gas Composition of Flowing Gas :

    Composition, N2 Co2 C1 C2 C3 iC4 nC4 iC5 nC5 C6+
    Mole fraction 0.08 0.45 91.19 6.60 1.36 0.18 0.10 0.02 0.01 0.01
    Specification M. wt. Sp.gr. @ 60/60 of air=1 GCV, Btu/scf Water Dew point C H.C. Dew point C H2s Content,PPM
    17.63 0.6087 1082.95 -68 -55 Nil

    Line pressure : for hot flaring pipeline ( from 3 psi to KOD MAWP), for cold flaring pipeline ( from 3 psi to KOD MAWP)
    Line Temp : for hot flaring P/L ( 10 to 100 C’), for cold flaring P/L (-55 to 45 C’)
    Limiting Velocity (generally 20 m/sec as per AGA 9)
    MOC of the Meter:???
    Area Classification :zone 1
    How much Path required in USM:how i calculate it?
    Min Max flow rate : (0.1 MMSCFD to 200 MMCFD)
    Suitable Body material of USM as per Flowing Gas ???
    Suitable Transducer material as per Flowing Gas???
    Type of calibration required (Wet calibration OR dry calibration)???
    Type of Inspection required.????
    type of Material test certificates required????