Piston Flowmeter - Series RPF

ROTARY PISTON FLOWMETERS

FLUIDEX RPF SeriesFluidex series RPF is a Rotary Piston Flow Meter. The meter consists of a piston rotating within a chamber of known volume. For each rotation, an amount of the liquid passes through the piston chamber. The RPF is a simple and reliable metering device that provide high levels of accuracy & repeatability. It is used in a wide range of liquids including high viscous lubricants, chemicals, food, fuels and many others.

FEATURES AND BENEFITS:

§  Available in DN15 to DN50 (½” to 2”) lines sizes

§  Flow range covered from 0.2~330 LPM (0.05~90 US GPM)

§  Not sensitive to mounting orientation.

§  Measure low & high viscosity liquids.

§  Has only one moving part (oscillating piston).

§  Availability of explosion proof and Intrinsically Safe models.

§  No need for flow conditioning.

Model

RPF 015

RPF 020

RPF 025

RPF 040

RPF 050

Size in MM (INCH)

DN15 (½")

DN20 (¾")

DN25 (1")

40 (1½")

DN50 (2")

 

FLOW RANGE

Max. flow is yo be reduced as viscosity increases, max.  pressure drop 100 Kpa. (15 psi)

 

RPF 015

RPF 020

RPF 025

RPF 040

RPF 050

LITERS / MINUTE

0.2~10

2~50

2~50

4~140

12~330

US GPM

0.05~2.7

0.5~13

0.5~13

1.1~37

3.2~90

 

METER PERFORMANCE AND ACCURACY @ 3CP

Accuracy

± 0.5% of reading (± 0.2% of rate with optional NL correction)

Repeatability

Typically ± 0.03%

 

MAXIMUM PRESSURE IN BAR (PSI)

 

RPF 015

RPF 020

RPF 025

RPF 040

RPF 050

Aluminum (A)

30 (440)

-

80 (1200)

30 (440)

20 (300)

316L Stainless Steel

100 (1500)

-

100 (1500)

100 (1500)

27 (380)

High pressure stainless

350 (5150)

-

200 (2950)

250 (3700)

-

UPVC (SAP meters)

-

4 (60)

-

-

-

 

TEMPERATURE RATINGS

Temperature range

-40ºC ~+200ºC (-40ºF ~+390ºF)

OUTPUT PULSE OPTIONS

Pulses / Liter (Pulses / US Gallon)

 

RPF 015

RPF 020

RPF 025

RPF 040

RPF 050

Reed switch

200 (760)

20 (76)

20 (76)

7.3 (28)

2.5 (9.5)

Hall effect

400 (1520)

100 (380)

100 (380)

44 (167)

20 (76)

Reed switch output

30Vdc x 200mA max.

Hall effect output (NPN)

3 wire open collector, 5~24Vdc, 20mA max.

 

ENVIRONMENTAL CLASSIFICATION

Protection class

IP66/67 (NEMA4X)

 

HAZARDEOUS AREA CLASSIFICATION

Class (Optional)

Exd I/IIB T4/T6

Note: Integral ancillaries can be supplied I.S. (Intrinsically Safe)

 

RECOMMENDED FILTERING

Filter Size

150 microns (100 mesh) minimum