Compact, acryl-mold type purgemeter for measuringliquids

P-620
Purgemeter■ OUTLINEThe P-620 is a compact, acryl-mold type purgemeter for measuringliquids of up to 10 L/min. The P-620 is widely used as a ﬂow switch andfeatures easy in-line maintenance. It does not need removing from the
instrument panel.

■ MAJOR APPLICATIONS
Cooling water lines for semiconductor production equipment■ STANDARD SPECIFICATIONS
Measuring ﬂuid

Liquids

Min. 0.1 to 1 L/min
Max. 1 to 10 L/min・When selecting a ﬂow range,refer to thestandard ﬂow rate table.
Range ability
Standard (10 : 1)
Indication accuracy±10％ F.S.
Fluid pressure
Max. 1 MPa
Fluid temperature
Max. 60℃
Wetted parts Acryl
Tapered tube Acryl
Nitrile rubber（NBR）
Material
GasketChloroprene rubber (CR)
Fluoro rubber
Fitting
C3604, SUS304, SUS316
Rc : 3/8"（Standard）
Process Connection
NPT : 3/8"
SW : 3/8"
Mounting
Screw mount on the panel front（Standard）
Mass
approx. 0.3 kg
Water

Measuring range■ BASIC MODEL CODE
Model CodeDescriptionsNotes‒ □ □ ‒ □ □ ‒ □ □‒ 0Not providedValve‒ UOutlet‒ ZSpecial
0Not provided
Refer to "Index
A
Reed switch (LO) & QuickB
Reed switch (LC) Reference for
Alarm output
C
Reed switch (HO) P Series
D
Reed switch (HC) Purgemeters"(TG-S0001).
ZSpecial
P-620

Wetted partsmaterial‒‒
‒‒

B
46Z

■ ALARM CONTACT AND OUTPUT
TypeGeneral
UL-approved
PAU optical alarm unit

Reed switch type alarm unit

Availability○○×N
Gasket materialF
Z

For CE approval, refer to "Index & Quick Reference for P Series
Purgemeters" (TG-S0001).
Process connection type

■ STANDARD FLOW RATE TABLE
For alarm output code of 0Water
0.1 to 1 L/min*1
0.2 to 2 L/min
0.3 to 3 L/min
0.5 to 5 L/min
0.6 to 6 L/min
0.8 to 8 L/min
1 to 10 L/min

For alarm output codes of A to D
Alarm setting
Water
range
0.1 to 1 L/min*1 0.2 to 0.8 L/min
0.4 to 1.2 L/min 0.5 to 1 L/min
0.2 to 2 L/min
0.4 to 1.6 L/min
1 to 2.4 L/min*2
0.3 to 3 L/min
0.5 to 5 L/min
2 to 4 L/min
0.6 to 6 L/min
2 to 4.8 L/min
0.8 to 8 L/min
2 to 6.4 L/min
1 to 10L/min
2 to 8 L/min

C

Process connection size‒
‒‒
‒

RNS
Z

C3604
（Standard）
SUS304
SUS316Special
Nitrile rubber（NBR）（Standard）
Chloroprenerubber（CR）
Fluoro rubber
SpecialRc（Standard）
NPT female
SWSpecial
3 3/8"（Standard）
Z Special■ OTHER AVAILABLE OPTIONS
You can specify the following options:
Alarm setting on the front face, length of reed switch lead wire, double
graduations, special graduations, built-in rubber joint type, built-in joint
type, etc.
(For details, refer to "Index & Quick Reference for P Series Purgemeters"(TG-S0001)).

*1 Only for the model of P-620-U □ -4N-R3, whose dimensions arediﬀerent from others*2 Min. 0.75 L/min for the SW connection

TG-F1108-1ERevisedOct 2015 K
1st edition Jun 2014 K

P-620Purgemeter■ ORDERING INFORMATION
Basic model code

Items to be speciﬁed
①
②
③
④
⑤
Fluid name − Flow range − Press. − Temp. − Mounting option

Ｐ-620- □□ - □□ - □□（Select in the model code table.）⑥
Other options−（Refer to "Index & Quick Reference for P Series Purgemeters" (TG-S0001).）■ DIMENSIONS● Standard typeP − 620 − U0 −□ N −□□● Reed switch alarm typeP − 620 − U □−□□−□□■ Screw mounting on the panel front■ Valve at the outlet

2-DOUTTO

3676

2-Ｍ4（D6）③②124

2φ52-M4（D6）

2φ
H
ＯＵＴ

SHUT

76
3676

36

L

O KEIKY

OPEN

2020IN←①⑧

Panel cut⑥⑤ＩＮ

⑦42-DPanel● Panel cut dimension
Conneection size
DRc3/8
3/8NPT
3/8SW

2φ
5⑨20

12436④→OUTs（MAX.36）

SOo2876

L

36

36

2φH（MAX.36）

28（Diﬀerent dimensions are speciﬁed for a ﬂow range of 0.1 to 1 L/min.
Contact us for details.）■ Screw mounting on the panel front■ Valve at the outlet

18

Panel cut● Standard material
Diameter（mm）
H272722Rear（mm）
L2020（30）Note: Use non-magnetic material for the panel when the alarm
output code is one of A to D.

Parts nameStandard material
Body, Tapered tube ○ Acryl
GasketFloat ＊Cap
Valve body
Valve needle
Fitting
Scale plate

Available material−
Fluoro rubber,○ Nitrile rubber (NBR)
Chloroprene rubber(CR)○ SUS304,SUS316,PVC−○ C3604SUS304,SUS316○ C3604
SUS304,SUS316○ SUS304
SUS316○ C3604
SUS304,SUS316
Acryl−Parts marked ○ come in contact with the measuring ﬂuid.
＊ We will select a proper material for your application.

· SUS316 may be used instead of SUS304 due to production reasons.
· ASTM or AISI materials equivalent to JIS materials may be used due toproduction reasons.

* 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
2TOKYO KEISO CO., LTD.

TG-F1108-1E