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Hydrotechnik
Macnaught Positive Displacement Flow Meters
M1 Series 1/4" Flow Meters

M1 Series 1/4" Flow Meters

The M1 is the smallest capacity meter in the range. An excellent turn-down 100:1 and high resolution (1 pulse per cc) make this meter an ideal choice for accurate low flow metering.
It has the ability to handle a wide range of fluid viscosities with exceptional levels of repeatability and durability.
A New high pressure M1 (551 bar) has recently been introduced

Model M1RSP-XY M1SSP-XY M1SSPH-X

Meter Type

Pulse

Pulse

Pulse

Meter Body Material

PPS

316 Stainless Steel

316 Stainless Steel

Wetted Components:

Rotor Material

316 S/St or PPS option

316 Stainless Steel

316 Stainless Steel

Shafts

316 St/Steel or Hastalloy Opt

316 Stainless Steel

316 Stainless Steel

O'ring

Viton- Standard

Viton- Standard

Viton- Standard

Flow Rate Ranges (litres per minute/US gallons per minute)

Above 5 CPS

0.16 to 1.67 / 0.26 to 26.4

0.16 to 1.67 / 0.26 to 26.4

0.16 to 1.67 / 0.26 to 26.4

Below 5 CPS

0.32 to 1.67 / 0.53 to 26.4

0.32 to 1.67 / 0.53 to 26.4

0.32 to 1.67 / 0.53 to 26.4

Accuracy within (of reading)

+/- 1%

+/- 1%

+/- 1%

Repeatability

0.03%

0.03%

0.03%

Maximum Viscocity

1000 Centipoise

1000 Centipoise

1000 Centipoise

Maximum Operating Pressure

500kPa/ 75 PSI/ 5 BAR

1000kPa/ 150PSI/ 10BAR

55160kPa/ 8000PSI/ 551BAR

Pulser Type

Hall Effect Sensor or Reed Switch

Hall Effect Sensor or Reed Switch

Hall Effect Sensor

Pulses per litre/US Gallon

1000 / 3785.4

1000 / 3785.4

1000 / 3785.4

Model Dimensions

Meter Body

50x50mm / 1.97"x1.97"

50x50mm / 1.97"x1.97"

86mm dia x 110mm h / 3.4" dia x 4.33" h

Port face to face

65mm / 2.58"

65mm / 2.58"

83mm / 3.26"

Weight

240g / 8.5oz

600g / 21.2oz

3.3kg / 116.5oz

Max. Operating Temperature

80°C / 176°F

120°C / 248°F

120°C / 248°F

Recommended Mesh
strainer size

200 Mesh

200 Mesh

200 Mesh

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