For use in closed liquid circuits at pressures up to PN 63 (MWP 914 psi) and liquid temperatures up to 300 °C (572 °F).
- For all liquids ranging from lubricating oils up to corrosive acids, viscosity 0.2 mPa s (cp), and for pasty, viscous liquids (e.g. colors for offset printing with 350 000 mPa s (cp))
- For measurements requiring an accuracy associated with custody transfer.
A prerequisite for exact measurements is that the liquid is homogeneous without coarse solid impurities or gas inclusions.
Rotary-piston meters are mainly used in the petroleum industry, the raw material industries, the chemical industry, the foodstuffs and beverage industries and in power stations and district heating stations:
The basic version (meter mechanism and register) is used primarily for metering applications in the production, distribution and consumption of liquids.
- With quantity preset register and mechanical shut-off valve as an automatic batchmeter without a power supply
- With accessories (pulser etc.) for flow measurement, remote metering and digital data processing
They complement one another with respect to the flow rate ranges but have particular advantages for specific applications.
Rotary-piston meters are approved for custody transfer in the European Union and in many other countries.
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Rotary-piston meter |
Automatic batchmeter |
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Industrial version DN 25 (1") ... DN 80 (3") |
Industrial version |
Acid-resistant version |
Rotary-piston meter with mechanical shut-off valve and quantity preset register |
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For industrial liquids such as: alcohols, bitumen, dispersions, paints, greases, liquid gases, adhesives, lacquers, alkalis, solvents, mineral oils, acids etc. |
For industrial liquids such as: alcohols, bitumen, dispersions, paints, greases, liquid gases, adhesives, lacquers, alkalis, solvents, mineral oils, acids etc. |
For particularly corrosive liquids such as: phosphoric acid, hydrochloric acid, dilute sulfuric acid, etc. |
For industrial liquids such as: alcohols, bitumen, dispersions, paints, greases, liquid gases, adhesives, lacquers, alkalis, solvents, mineral oils, acids etc. |
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Rated flow |
Rated diameter DN |
Order-No. |
page |
Rated flow |
Rated diameter DN |
Order-No. |
page |
Rated flow |
Rated diameter DN |
Order-No. |
page |
Rated flow |
Rated diameter DN |
Order-No. |
page |
|
l/min (USgpm) |
mm (inches) |
l/min (USgpm) |
mm (inches) |
l/min (USgpm) |
mm (inches) |
l/min (USgpm) |
mm (inches) |
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20 (5.3) |
15 ( ") |
7MR1020 7MR1030 |
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100 (26.4) |
25 (1") |
7MR1110 |
100 (26.4) |
25 (1") |
7MR1120 7MR1130 7MR1140 |
100 (26) |
25 (1) |
7MR1111 |
100 (26) |
25 (1) |
7MR1112 7MR1113 |
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500 (132) |
50 (2") |
7MR1410 |
500 (132) |
50 (2") |
7MR1420 7MR1430 7MR1440 |
500 (132) |
50 (2") |
7MR1412 7MR1413 |
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1000 (264) |
80 (3") |
7MR1610 |
1000 (264) |
80 (3") |
7MR1620 7MR1630 |
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