M-Series Positive-Displacement Flowmeters

Three Ready-Made Configurations

Available Configurations

Every configuration is available in M40 (1.5″), M50 (2″), M80 (3″) and M100 (4″) port sizes.

Mechanical Register + Strainer + Air Eliminator

Standard configuration for diesel and gasoline delivery. No external power required. Pulsed output available.

M40-C-1 · M50-C-1 · M80-C-1 · M100-C-1

Electronic Register + Strainer + Air Eliminator

Electronic counter with IB box, solenoid valve (12 / 24 V DC), strainer and air eliminator. Real-time flow data.

M40-EP-1 · M50-EP-1 · M80-EP-1 · M100-EP-1

Mechanical Register + Printer + Strainer + Air Eliminator

Mechanical register with thermal printer for on-site ticketing. Self-contained, no power required.

M40-PR-1 · M50-PR-1 · M80-PR-1 · M100-PR-1

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Advantage

Key Features

Excellent stepless adjusting mechanism allows micro adjustment of the meter.
High accuracy and repeatability over the widest range of flow; superior accuracy at constant flow.
Low maintenance — no metal-to-metal contact in the measuring chamber — long life service.
Low pressure loss — a true gravity flow meter.
Accuracy regardless of pressure fluctuations, temperature variation and viscosity.
Choice of aluminium, cast iron and stainless steel materials of construction.
Reading in litres or US / IMP gallons. Pulsed output option for remote totalization.

Technical Specification

Technical Specifications

One spec matrix, shared across all three configurations.

Parameter	M40	M50	M80	M100
Size	40 mm / 1.5″	50 mm / 2″	80 mm / 3″	100 mm / 4″
Flow Range	25 – 250 L/min	38 – 550 L/min	75 – 1150 L/min	130 – 1700 L/min
Volume per Revolution	0.309 L	0.681 L	1.839 L	5.102 L
Max Working Pressure	145 psi / 10 bar
Accuracy	±0.2%
Repeatability	≤0.07%
Working Temperature	-30 °C to +70 °C
Ports	1.5″ BSPT / NPT	2″ BSPT / NPT	3″ BSPT / NPT	4″ BSPT / NPT
Standard Measurement	Litre / US Gallon / IMP Gallon
Body Material	Aluminium (standard) · Cast Iron · Stainless Steel optional

Package Data

Packaging

Two packaging options: carton (economy) or plywood case (export-grade).

Carton packaging

Parameter	M40	M50	M80	M100
Packing Dimension	52 × 46 × 49 cm	52 × 46 × 49 cm	58 × 50.5 × 57 cm	—
Net Weight	22.0 kg	24.4 kg	38.8 kg	71.5 kg
Gross Weight	22.6 kg	25 kg	41.5 kg	—
Package	1 pc / carton

Plywood case packaging

Parameter	M40	M50	M80	M100
Packing Dimension	53.5 × 47.5 × 57 cm	53.5 × 47.5 × 57 cm	59 × 50 × 65 cm	75 × 59 × 72 cm
Net Weight	22.0 kg	24.4 kg	38.8 kg	71.5 kg
Gross Weight	31.6 kg	34 kg	50 kg	88.5 kg
Package	1 pc / plywood case

Real Product Examples

What the M-Series Looks Like On Our Line

Photographed in-house. Each example below shows the meter as it would arrive at your depot — same cast-iron body, same register, same finish we ship every day.

M50 positive displacement flow meter with mechanical register and strainer — M50 · Mechanical Register + Strainer

50 mm (2″) port, 38 – 550 L/min. Mechanical register with strainer, no external power required.

M50 positive displacement flow meter with mechanical register and printer — M50 · Mechanical Register + Printer

50 mm (2″) port, 38 – 550 L/min. Self-contained thermal printer on the side — print a delivery ticket on the spot.

M80 positive displacement flow meter with mechanical register and strainer — M80 · Mechanical Register + Strainer

80 mm (3″) port, 75 – 1150 L/min. Mechanical register with strainer, for higher-flow transfer.

M100 positive displacement flow meter with mechanical register, strainer and air eliminator — M100 · Mechanical Register + Strainer + Air Eliminator

100 mm (4″) port, 130 – 1700 L/min. Round dome on the right is the air eliminator.

Need Help Selecting a Configuration?

Tell us your flow range, media and required accessories — we will match the right model within 24 hours.

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