Static

pressure inlet

Pitot tube

Pipe

Pressure inlet

Tapered tube

Float

Indicator

TG-F2557-E00

Sep 2024

1st edition

K

Flowmeter for air conditioner

ONE-TOUCH FLOW

CFW2000 Series

PORTABLE AND DETACHABLE

GENERAL

The CFW2000 is the liquid flowmeter mainly designed for air

conditioner. The flow rate is detected by the differential pressure

which is created by a Pitot tube inserted into the pipe.

As the indicator is compatible with 4 different line sizes as per

customers’choice, one indicator can be commonly used for

4 different pipes by just installing the fixing nozzles on them.

It saves space and cost for the services where no continuous

monitoring is required. Thus, the portable and detachable

indicator,“ONE-TOUCH FLOW”is most suitable for the

measurement of cold and hot water for the air conditioning

system in collective housings, office buildings and other

facilities.

FEATURES

❏

Portable indicator is detachable with one touch action

❏

Just weld a 20 mm (3/4 inch) socket in the existing pipe and

screw the flowmeter into the socket

❏

Minimum pressure loss

60°C hot water in red and 7°C cold water in blue with double

scales

❏

For both horizontal and vertical pipes

❏

One indicator can be commonly used for 4 different pipes.

❏

Light weight, cost effective and quick delivery

MEASURING PRINCIPLE

The Pitot tube inserted into the pipe which have two pressure

inlets, one for the total pressure (dynamic + static pressure) and

the other one for static pressure only. The liquid is introduced into

the flowmeter as a bypass line by the pressure difference of the

total and static pressure as shown by an arrow ← in the following

schematics. The flow going through the tapered tube makes the

float stay at a position on the scale corresponding to the total flow

rate in the pipe.

STANDARD SPECIFICATIONS

・Measuring liquid

: Water, Cold water, Hot water

・Main pipe size

: 20 mm (3/4") to 450 mm (18")

・Indication accuracy

: ± 5% (F.S.)

・Max. operating pressure

CFIW2 □ 2 □ - □□□□ -10 1.0 MPa

CFIW2 □ 2 □ - □□□□ -20 2.2 MPa

・Operating temperature : 0 to 80°C

The operating temperature is typical one which may

change according to operating or environment

conditions. (Use the lining or plastics pipe within its

allowable temperature).

・Mass

Indicator : CFIW2 □ 2 □

Approx.1.3 kg

Fixing nozzle CFNW □□□ Approx.1.0 kg

Dew prevention cover

(option)

The dew prevention

cover is detachable

with one touch action.