MiniVap On-Line

Grabner/Reid Vapor Pressure On-Line Analyzer

START Workshop Video (Disclaimer)

MINIVAP ON-LINE is a process monitoring analyzer for the determination of the vapor pressure of gasoline, crude oil, LPG and NPG. Also, the vapor-liquid ratio (LVR) of gasoline can be measured. The measuring principle is identical to the worldwide used laboratory instruments MINIVAP and therefore the MINIVAP ON-LINE produces equivalent results.

Up to 2 different sample streams can be connected to one single analyzer. It is the only available process vapor pressure tester that fully complies to the industry relevant ASTM standards for gasoline (ASTM D6378), crude oil (D6377) and LPG (D6897).

The unmatched accuracy makes refineries save thousands of Dollars each day!

Click on the Calculator TAB to calculate your savings today!

Applications
The measuring principle is based on the triple expansion method of Grabner Instruments´ worldwide approved and accepted laboratory vapor pressure tester for gasoline and crude oil: MINIVAP VPS. The US-EPA declared MINIVAP the official reference instrument for the USA in 1993.

With MINIVAP ON-LINE, the vapor pressure of gasoline (D6378 / D5191), crude oil (D6377 / D323), liquid petroleum gas (D6897 / D1267) and the vapor-liquid ratio temperature of gasoline (D5188) can be determined. With possible connection of up to 2 different sample streams, these measurements can be performed with one single instrument.

  • Specifications +


    Grabner/Reid Vapor Pressure On-Line Analyzer

    Features

    • On-line Compliance Monitoring for Vapor Pressure of Gasoline, LPG and Crude Oil and Vapor/Liquid-Ratio Temperature of Gasoline (V/L=20)
    • One Single Instrument for up to 2 Sample Streams
    • Multiple Point Measurements at Different Nominal Pressures
    • Automatic Calibration & Offset Correction
    • Temperature Controlled Sample Conditioning System
    • 7 Minutes Cycle Time
    • Explosion Proof-Class I
      • ♦ NFPA 496 (US)
        ♦ EN 60079-2 and EN 60079-0 (EU)


    VAPOR PRESSURE TESTER STANDARDS

    • ASTM D6378 - Vapor Pressure of Gasoline (VP4)
    • ASTM D6377 - Vapor Pressure of Crude Oil
    • ASTM D6897 - Latest standard for Vapor Pressure of LPG
    • ASTM D5191
    • ASTM D5188 - V/L-Ratio: T (V/L = 20)
    • ASTM D4953
    • ASTM D1267
    • ASTM D323
    • EN 13016 - 1+2
    • IP 394, 409 & 481
    • JIS K2258-2, SHT 0769, GOST 52340

    Technical Data

    Temperature Range
    20 to 60°C (68 to 140°F)
    Pressure Range
    0 to 1000 kPa (0 to 145 psi)
    Power Requirements
    100/120/230/240 V AC, 50/60 Hz, 65 W
    Field Application
    12 V/4A DC (vehicle battery)
    Physical Dimensions
    580 x 1060 x 260 mm (23.7" x 43.3" x 10.6")
    Weight
    50 kg (110 lb)

    Precision Data
    MINIVAP 37.8°C @ 70 kPa)
    ASTM D323 (Wet Reid Bomb)

    Repeatability
    ±0.3 kPa (0.04 psi)
    ±3.2 kPa (0.46 psi)

    Reproducibility
    ±0.7 kPa (0.10 psi)
    ±5.2 kPa (0.75 psi)


    Principle
    The sample flows from the sample conditioning system via a quick connector (4) and sample inlet valve (4) into the measuring chamber. The automatic sample introduction and volume adjustments are made by a piston with an integrated pressure transducer (1). The measuring chamber (2) with a total volume of 5 mL is rinsed with 2.5 mL and filled with 1 mL. After closing the valve (4), the single or triple expansion to 5 mL (with the sample under vacuum condition) is obtained by further strokes of the piston. The temperature of the measuring cell is controlled with a high-power thermoelectric module (5) and measured with a precision Platinum sensor (6). To achieve fast pressure equilibrium, especially for crude oil, the measuring unit is rocked during the test procedure.

    Automatic piston lubrication is processed with every piston stroke.


    Continuous product development may make it necessary to change product specifications without notice.

  • Videos +

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  • Downloads +

  • Calculator +


    Calculate Cost Savings for On-line Vapor Pressure Testing
    Butane Gasoline
    RVP Observed (kPa)
    Cost (euros/liter)
    Barrel Volume (bbl)
    percent 20.00% 80.00%
    Analyzer Precision (kPa)
    Expected RVP (kPa): 245.67
    Euros per Dollar
    US EU
    Calculations
    Cost of Butane: €1,540,980
    Total Revenue: €NaN
    Gross Profit: €NaN
    Expected Cost (euros/liter): NaN/l
  • Standards +


    ASTM D323
    Standard Test Method for Vapor Pressure of Petroleum Products (Reid Method)

    ASTM D1267
    Standard Test Method for Gage Vapor Pressure of Liquefied Petroleum (LP) Gases (LP-Gas Method)

    ASTM D4953
    Standard Test Method for Vapor Pressure of Gasoline and Gasoline-Oxygenate Blends (Dry Method)

    ASTM D5191
    Standard Test Method for Vapor Pressure of Petroleum Products (Mini Method)

    ASTM D5188
    Standard Test Method for Vapor-Liquid Ratio Temperature Determination of Fuels (Evacuated Chamber Method)

    ASTM D6377
    Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCRx (Expansion Method)

    ASTM D6378
    Standard Test Method for Determination of Vapor Pressure (VPx) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)

    ASTM D6897
    Standard Test Method for Vapor Pressure of Liquefied Petroleum Gases (LPG) (Expansion Method)

    EN13016-1+2
    PART 1: Liquid petroleum products - Vapour pressure - Part 1: Determination of air saturated vapour pressure (ASVP) and calculated dry vapour pressure equivalent (DVPE)
    PART 2: Liquid petroleum products - Vapour pressure - Part 2: Determination of absolute pressure(AVP) between 40 °C and 100 °C

    IP 394
    Liquid petroleum products - Vapour Pressure - Part 1: Determination of air saturated vapour pressure (ASVP)

    IP 409
    Liquid petroleum products - Vapour Pressure - Part 2: Determination of absolute vapour pressure (AVP) between 40°C and 100°C

    IP 481
    Determination of air saturated vapour pressure (ASVP) of crude oil

    JIS K2258-2
    Crude petroleum and petroleum products -- Determination of vapour pressure -- Part 2: Triple expansion method

    SHT 0769
    Standard test method for determination of vapor pressure of petroleum products, hydrocarbons and hydrocarbon-oxygenate mixtures (Triple expansion method)

    SHT 0794
    Standard test method for Vapor Pressure of Petroleum Products (Mini Method)

    SNT 2932
    Determination of Vapor Pressure of Chemicals – Triple Expansion Method

    GOST 52340
    Crude Oil Determination of vapour pressure by expansion method