Volume measurement of liquids and liquid gases in loading applications of the chemical and petrochemical industry, petroleum industry and of food and beverages:
- in the oil industry for the measurement of crude oil or refined products or in the gas industry for the measurement of liquid gas
- in dosing and loading technology for the measurement of defined quantities of various fuels and additives
- in the petrochemical industry for measuring products such as ethylene or propylene liquid
- in the chemical industry for measuring various acids or alkalis
- in mechanical and apparatus engineering for measuring lubricants or process fluids
- in shipbuilding for measuring fuel consumption
Technical data in general
| Nominal size | 6 to 400 mm (1“ bis 16“) |
| Process connection | Females threading Flange according to DIN or ANSI |
| Material |
Pressure relevant: cast steel, stainless steel, PVDF Other wetted parts: PEEK, aluminum; brass, ceramics, stainless steel, others |
| Flow Range | 0,03 l/min to 24.000 l/min (0.008 gal/min to 6,340 gal/min) |
| Accuracy | ±0,05% to ±0,5% |
| Repeatability | ±0,02% |
| Viscosity | 0,1 to 100.000 mPa·s |
| Process temperature | -40°C to 290°C (-40°F to 554°F) |
| Process pressure | max. 100 bar bar (1,450 psi) |
| Ex-protection | Flame proof or intrinsically safe |
Characteristics
high measurement accuracy
Single Case Oval wheel meter:
accuracy: Flowal® Plus up to ±0.25%
accuracy: OI up to ±0.1%
Double Case Oval wheel meter:
accuracy: OP up to ±0.15%
accuracy: OaP up to ±0.05%
Special features
- mechanical or electronic counters available
- no inlet and outlet sections required
- wide viscosity range
- simple installation and commissioning
- maintenance-free
- national and international approvals
- custody transfer certificates / OIML / MID 2014/32/EU
(old version: 2004/22/EG) - Evaluation Certificate (Welmec 8.8)
- SIL 2 (OaP series)
- Llyods Register (OI, OaP)
- approved for use in legal metrology
- ATEX
- PED
- NACE
Oval wheel meter products
OaP
(5 to 24,000l l/min)
(1.32 to 6,340 gal/min)
OP
(0.08 to 5,000 l/min)
(0.02 to 1,320 gal/min)
OI
(0.2 to 1,200 l/min)
(0.05 to 317 gal/min)
OC
(2.5 to 100 l/min)
(0.66 to 26.41 gal/min)
OK
(2.5 to 500 l/min)
(0.66 to 132.09 gal/min)
FLOWAL® PLUS
(0.03 to 660 l/min)
(0.008 to 174.35 gal/min)
OD
0.2 to 100 l/min
(0.05 to 26.42 gal/min)
Oval wheel meter series OaP
Application:
Oval Wheel Meters Type OaP / OP are used for measuring liquid raw, intermediate and finished products such as liquefied gases, gasolines, heating oils, lubricating oils, transmission oils, solvents, bitumen, alkaline solutions, acids and other chemical liquids.
Technical data
| Nominal size | 25 to 400 mm (1/4“ bis 16“) |
| Process connection | Flanges according to DIN or ANSI |
| Material |
Pressure relevant: cast steel |
| Flow Range | 5 to 24.000 l/min (1.32 to 6,340 gal/min) |
| Accuracy | ±0,05% to ±0,5% |
| Repeatability | ±0,02% |
| Viscosity | 0,1 to 100.000 mPa·s |
| Process temperature | -40°C to 290°C (-40°F to 554°F) |
| Process pressure | max. 100 bar (1,450 psi) |
| Ex-protection | Flame proof or intrinsically safe |
Special Features
- double case meter Design
- no straight inlet and outlet pipe sections required
- measuring principle independent of the viscosity
- compact design
- easy start-up
- maintenance-free
- the only SIL 2 oval wheel meter world wide
- broad range of custody transfer approvals
Characteristics
- oval wheel meters for low- , mid-, and high viscosity liquids
- high measurement accuracy
- low pressure loss
- high life time
- Oil and Gas
- Chemistry and pharmaceutical
- Mechanical and plant engineering
- Energy and power plants
- Shipbuilding
Oval wheel meter series OP
Application:
Oval wheel meters type OP are used for measuring liquids such as gasolines, heating oils, lubricating oils, diesel oil, bio ethanol and some chemical liquids.
Technical data
| Nominal size | 15 to 150 mm (1/2“ bis 6“) |
| Process connection | Flange according to DIN or ANSI |
| Material |
Pressure relevant: cast steel, stainless steel, Wetted parts: aluminum or stainless steel |
| Flow Range | 0,08 to 5.000 l/min (1.32 to 1,320 gal/min) |
| Accuracy | ±0,2% to ±0,5% |
| Repeatability | ±0,02% option special calibration: ±0.15% |
| Viscosity | 0,3 to 120 mPa·s |
| Process temperature | -10°C to 110°C (14°F to 230°F) |
| Process pressure | max. 40 bar (580 psi) |
| Ex-protection | Flame proof or intrinsically |
Special features
- Double case meter design
- no straight inlet and outlet pipe sections required
- measuring principle independent of the viscosity
- easy start-up
- maintenance-free
Characteristics
- oval wheel meter for low to medium viscosity liquids
- low pressure loss
- high life time
- Oil and Gas
- Chemistry and pharmaceutical
- Mechanical and plant engineering
- Energy and power plants
- Shipbuilding
Oval wheel meter series OI
Application:
Oval wheel meters type OI are used for the measurement of liquid products such as liquefied gases, acids, alkaline solutions, fats, alcohols, solvents, dispersions, polymers, poly-condensates, paints, colors and adhesives etc.
Technical data
| Nominal size | 25 to 100 mm (1“ to 4“) |
| Process connection | Flanges according to DIN or ANSI |
| Material | pressure relevant: cast steel, grey cast iron, stainless steel wetted parts: aluminum; brass, cast iron |
| Flow Range | 8 to 1,000 l/min (2 264 gal/min) |
| Accuracy | ±0.01% to ±0.3% |
| Repeatability | ±0.02% |
| Viscosity | 0.3 to 3,000 mPa·s (standard) 1.5 to 60,000 mPa·s (ball bearing) |
| Process temperature |
-60°C up to 180°C (-76°F to 356°) High temperature design: special clearances / extension 300 mm Low temperature design: special clearences / extension 400 mm + 2 magn. coupling / pmax = 0.5 x PN |
| Process pressure | max. 40 bar (580 psi) |
| Ex-protection | Flame proof or intrinsically |
Special features
- single case meter Design
- no straight inlet and outlet pipe sections required
- measuring principle independent of the viscosity
- compact design
- easy start-up
- maintenance-free
Characteristics
- oval wheel meters for mid to high viscosity liquids
- high measurement accuracy
- low pressure loss
- high life time
- Oil and Gas
- Chemistry and pharmaceutical
- Mechanical and plant engineering
- Food and beverage
- Energy and power plants
- Shipbuilding
Oval wheel meter series OC
Application:
Oval wheel meters type OC are used for measuring of liquid raw, intermediate or finished products such as oil, chemical liquids, demi-water, petrol etc. Optionally also suitable for filling processes.
Technical data
| Nominal size | 25 to 400 mm (1/4“ to 16″) |
| Process connection | Flanges according to DIN or ANSI |
| Material | AISI 304, aluminum |
| Flow Range | 2.5 to 100 l/min (0.66 to 26.4 gal/min) |
| Accuracy | ±0.5% (optional ±0.25%) |
| Repeatability | ±0.02% |
| Viscosity | 0.3 to 350 mPa·s |
| Process temperature |
0°C up to 70°C (32°F to 158°F) |
| Process pressure | max. 16 bar (232 psi) |
| Ex-protection | Flame proof or intrinsically |
Characteristics
- oval wheel meters for mid to high viscosity liquids
- high measurement accuracy
- low pressure loss
- high life time
Special features
- single case meter Design
- no straight inlet and outlet pipe sections required
- measuring principle independent of the viscosity
- compact design
- easy start-up
- maintenance-free
- Oil and Gas
- Chemistry and pharmaceutical
- Mechanical and plant engineering
Oval wheel meter series OK
Application:
Oval wheel meters type OK are used for dosing of liquid chemical fluids of all kinds, such as solvents, resins, paints and varnishes, alkalis, organic and inorganic acids, depending on temperature and concentration.
Technical data
| Nominal size | 25 to 500 mm (1/4“ to 16“) |
| Process connection | Flanges according to DIN or ANSI |
| Material | Stainless steel, grey cast iron, cast steel (OK 100) |
| Flow Range | 2.5 to 5000 l/min (0.66 to 132.07 gal/min) |
| Accuracy | ±0.3% |
| Repeatability | ±0.02% |
| Viscosity | 0.3 to 1.000 mPa·s |
| Process temperature | -10°C to 60°C (14°F to 140°F) |
| Process pressure | max. 10 bar (145 psi) |
| Ex-protection | Flame proof or intrinsically |
Characteristics
- oval wheel meters for mid to high viscosity liquids
- high measurement accuracy
- low pressure loss
- high life time
Special features
- single case meter Design
- no straight inlet and outlet pipe sections required
- measuring principle independent of the viscosity
- compact design
- easy start-up
- maintenance-free
- Oil and Gas
- Chemistry and pharmaceutical
- Mechanical and plant engineering
- Energy and power plants
- Shipbuilding
Oval wheel meter series Flowal® Plus
Application:
Versatile flowmeter for measuring the volume of liquids in mechanical engineering, factory automation and process instrumentation, such as suited for industrial fluids, chemical fluids, mineral oils and fuels. The modular design combines reliable mechanical sensors with modern electronics. The plastic version is suitable for measuring the volume of corrosive liquids, acids, alkalis, solvents, dyes…
Technical data
| Nominal size |
G1/4“, G1/2“, G3/4“, G1“, G2“ |
| Process connection |
Inside threads according to ISO 288 |
| Material |
pressure relevant: stainless steel, aluminum, PVDF, PP other wetted parts: PEEK; stainless steel |
| Flow Range | 0,03 l/min to 660 l/min |
| Accuracy | ±0,25% to ±0,5% |
| Repeatability | ±0,02% |
| Viscosity |
0,3 to 3.000 mPa·s |
| Process temperature |
-40°C up to 130°C |
| Process pressure | up to 68 bar (986 psi) |
| Ex-protection | intrinsically safe (ATEX or IEC-Ex) |
Characteristics
- oval wheel meters for low to mid viscosity liquids
- battery powered model available
- low pressure loss
Special features
- single case meter design
- no straight inlet and outlet pipe sections required
- measuring principle independent of the viscosity
- easy start-up
- maintenance-free
- plastic version: no wetted metal parts and low weight
- built-in temperature sensor
- battery-supplied compact devices
- detection of flow direction
- Oil and Gas
- Chemistry and pharmaceutical
- Mechanical and plant engineering
- Food and beverage
- Shipbuilding
Oval wheel meter series OD
Application:
The focus is on the measurement of non-conductive liquids. This meter is designed for the measurement of e.g. oil or demineralized water. Due to the measuring principle, an inlet or outlet section is not required.
Technical Data
| Nominal size | DN10,DN15,DN25 |
| Process connection | TriClamp according to DIN 32676 |
| Material |
Housing: stainless steel Oval wheels: stainless steel, PEEK Seals: EPDM, alternatively Viton |
| Flow Range |
0.2 to 5 l/min – 2,000 Pulses/ 1 to 30 l/min – 1,000 Pulses/l 2 to 50 l/min – 400 Pulses/l 4 to 100 l/min – 200 Pulses/l |
| Accuracy | ±0,25% to ±0,5% |
| Repeatability | ±0,1% |
| Viscosity | 0,3 to 1.500 mPa·s |
| Process temperature |
Liquid temperature: -10°C to +130°C (-14°F to 266°F) ambient temperature: -20°C to +70°C (-4°F to 158°F) |
| Process pressure | max. 16 bar |
| Ex-protection |
not available |
Special features
- Fillings from 10 ml possible
- very short dosing times > 250ms
- high resolution (e.g. DN10: 2000 pulses/l)
- large selection of filling quantities with different nominal sizes
- can be combined with the batch controller
Characteristics
- direct measurement of volume
- measurement of non-conductive and conductive liquids
- high accuracy / repeatability also for small quantities
- high long-term stability
- Chemistry and pharmaceutical
- Food and beverage