Made of Non-metallic Materials for Wet Parts with
Compact Design
For Monitoring and Alarm of Liquids

W-200

MINI-WHEEL FLOWMETEROUTLINE
The W-200 is a rotary vane type flowmeter for measuring liquids.
The rotary vane containing a magnet is placed in the stream. The
flow rate is measured without contacting the wheel by detecting
the number of rotations which is proportional to the flow rate. The
compactly designed flowmeter with its body made of resin is nonmetallic for all wet parts.

FEATURES❑ Pulse, voltage, or current output❑ Visible wheel rotation❑ The model of its body made of resin is non-metallic for all wetparts❑ Easy overhauling, cleaning and maintenance❑ Compact shape

STANDARD SPECIFICATION• Measuring fluid: Liquids. The liquid viscosity is2.0 mPa • s or less.
• Fluid pressure: Maximum 0.7 MPa, See “Allowablepressure and temperature range.”• Fluid temperature: 0 to 80ºC for W-21□ except those madeof PVC: 0 to 60ºC for W-21□ including thosemade of PVC, W-22□ and W-23□• Ambient temperature : 5 to 60°C
• Flow direction and posture: The pipe line on which flowmeter isinstalled, is either in horizontal or vertical.

For the installation on horizontal pipe,
the wheel shaft must be always inhorizontal and flow path (center line ofpipe line) must be situated in the upperside of the wheel to fill the wheel
chamber fully with liquids.
: Approx. 200 g for W-2□1 through W-2□6Approx. 400 g for W-2□7 and W-2□8: ±8 % of F.S. for W-2□1 and W-2□2±5 % of F.S. for W-2□3±3 % of F.S. for W-2□4 through W-2□8• Mass• Accuracy

Allowable pressure and temperature range

OutputOpen collector pulsepulse)
W-21 □ (Unscaled
Load rating :Max. 18 V DC, 15 mA
0 to 10 V DC
W-22 □ Load resistance :More than 10 kΩ
4 to 20 mA
W-23 □ Load resistance :Less than 500ΩPower supply
5 to 18 V DC,12 mA

3-coreEquivalent
AWG26
1 m provided to IP64

24 V DC±10%, 20 mA
24 V DC±10%, 50 mA

0.8

Enclosure

Fluid press. [MPa]ModelElectricconnection

0.7
0.6
0.5

Body : P.P

0.40.3
Body : PVC

0.2
0.1

4-coreDrip proof
AWG26(Equivalent1 m provided to IP62)

00102030

405060708090

Fluid temperature [OC]MODEL CODE
Model code□ □ − □
1Output 23123Range
4of ﬂow
rate and5connection 6size
78ZP
Material of body
V
6W-2

□RRR

Model

Description
Pulse output : Open collector
Voltage output : 0 to 10 V DC
Current output : 4 to 20 mA DC
0.3 to 1 L /min
0.6 to 3 L/min
0.75 to 5 L /min
1 to 10 L/min
2 to 20 L/min
3 to 30 L/min
4 to 40 L/min
5 to 50 L/minSpecial
P.P. (Polypropylene)
PVC (Rigid polyvinyl chloride)
SUS316W-2 □ 1W-2 □ 2W-2 □ 3W-2 □ 4W-2 □ 5W-2 □ 6W-2 □ 7
W-2 □ 8

Rc1/4

Rc3/8
＊

Diameter of ﬂowpath（mm）
φ1.6
φ3.2
φ4φ6φ10φ12φ14φ15

Pressure drop（kPa）＊
5660
401813876

at max. ﬂow

Rc1/2

Note : Consult us if special materials are required.
TG-ES696-8E
RevisedJun 2016 K
4th edition Aug 2003

W-200MINI-WHEEL FLOWMETERDIMENSION《W-2 □ 1》【W-211】
FLOW＊

132310OUT
2-M4 depth 8For fastening
screw

PartNo.
1

18.3

234064352

168978945678910《W-2 □ 2 〜 2 □ 6》
【W-212〜216】
FLOW＊

18.3

1010

φ30.5

2310402-M4 depth 8
For fastening
screw

(18)

53.3

18.3
1255

【W-222〜226、232〜236】

(18)

33.3

Name

Material

Wheel / Bearing

PPS/ Carbon containing
PTFE
Quartz glass

1010

φ30.5

40

IN

(18)

53.3

18.3

55

[STANDARD MATERIAL]【W-221、231】
(18)

33.3

Shaft
Monitoring
window
O ringFlow path body
BushCoverCover (lid)
Fastening screws
CablePolycarbonate
NBR
See MODEL CODEPTFEABSABSSUS304
PVC sheath

Consult us for materials other than standards.

40643521689789《W-2 □ 7、2 □ 8》
【W-217、218】
FLOW＊

63.3

23.3

φ30.5

30.5
1750(18)

23.3

1770

2-M4 depth 5For fasteningscrew【W-227、228、237、238】

(18)

43.3

10105064352

1689789＊The model with an opposite ﬂow direction is also available. Specify the direction when ordering.

WIRING
Connect the lead wire from ﬂowmeter as follows. Various ﬂow indicators are available for your application. Consult us.

《W-21 □ Pulse output》《W-22 □ Voltage output W-23 □ Current output》
[Red]

[Red]
[White][Black]＋＋ Pulse− output−

Power supply
5 to 18 V DC

[White] ＋
0 to 10 V DC＋[Black] −−or
4 to 20 mA DC

Power supply
24 V DC[Green]Note: As power supply and load are connected
inside, they are not isolated.

NOTES❏ Do not put a signal cable along with other power lines.
❏ Inside diameter of process piping and ﬁtting must be more than that of ﬂow path nozzle.
❏ Install the ﬂowmeter at the places free from the inﬂuence of external magnetic ﬁeld which aﬀects the characteristics.
❏ Use this ﬂowmeter at the places where there is no stagnation of air around the wheel and also in the state of water ﬁlled up.
❏ Avoid the air blow. Otherwise, the wheel and shaft might be damaged.
❏ The upstream straight runs of more than 10 D (D:inside diameter of pipe) is recommended when uneven or whirling ﬂow is expected.

* Specification is subject to change without notice.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp
2TG-ES696-8E