Corrosion-resistant purgemeter with a ﬂuorocarbon
resin body for measuring medium ﬂow rates of liquids

P-773
Purgemeter
OUTLINE
The P-773 is a purgemeter with a PFA-mold integral body.
All parts are fused without mechanical sealing such as O-rings. The float
rod is also eliminated to meet more stringent requirements for cleanliness.
Its compact design with a face-to-face dimension of 115 mm facilitatesassembly onto various types of devices.

MAJOR APPLICATIONS
Pure/ultra-pure waterlines and chemical lines in semiconductor production

STANDARD SPECIFICATIONSMeasuring fluidLiquids

Measuring range

Water

Range ability
Indication accuracy
Fluid pressure
Fluid temperature
Meter body
Tapered tube
Material Gasket
Side plate
CoverProcess connection
MountingMass

Min. 0.1 to 1 L/min
Max. 1 to 10 L/min

10：1±5％ F.S.
Max. 0.5MPa
Max. 60°C
PFA
Integrally molded
PFA
For models with a valve : PTFE
PVC
PVC
Tube end fitting: (OD) 3/8" (Standard), Other
Rc : 1/4", 3/8"
NPT : 1/4", 3/8"
Screw mount on the panel front (Standard)
approx. 0.6 kg

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

Reed switch type alarm unit

Availability
×○○For CE approval, refe r to "Index & Q uick Refe renc e for P Se r ie sPurgemeters" (TG-S0001).

STANDARD FLOW RATE TABLE
For alarm output codes of 0 or E
Water
0.1 to 1 L/min
0.2 to 2 L/min
0.3 to 3 L/min
0.5 to 5 L/min
1 to 10 L/min

For alarm output codes of A to D
Alarm setting
Water
range
0.2 to 2 L/min
0.3 to 3 L/min
0.5 to 5 L/min
1 to 10 L/min

0.4 to 1.6 L/min
1 to 2.4 L/min1 to 4 L/min
2 to 8 L/min

Although other flow rate specifications are available, some flow ranges
need to be changed. Contact us for details.

BASIC MODEL CODE
Model CodeDescriptions
P-773 ‒ □ □ □ □Not provided‒ 0Valve ‒ U
OutletSpecial‒ Z0
Not provided
A
Reed switch alarm (LO)B
Reed switch alarm (LC)
Alarm
C
Reed switch alarm (HO)outputD
Reed switch alarm (HC)E
PAU alarm unit provided
ZSpecialA

Notes

Refer to "Index &Quick Reference
for P Series
Purgemeters" (TGS0001).

Available only when
the alarm output code
is 0 (Not provided)

0.1 to 1 L/min

0.2 to 2 L/min
0.3 to 3 L/min
0.5 to 5 L/min
1 to 10 L/minSpecial1 Rc1/4
2 Rc3/8
3 1/4NPT
4 3/8NPT
Tube end fitting
5(3/8"×t1.59)（Standard)
Process connection
Tube end fitting
6(1/2"×t1.59)
7 Tube end fitting (φ8×t1)
8 Tube end fitting (φ10×t1)
9 Tube end fitting (φ12×t1)
Z Special
Flow range

B
123Z

OTHER AVAILABLE OPTIONS
You can specify the following options:
Length of reed switch lead wire, double graduations, special graduations,etc.
For details, refer to "Index & Quick Reference for P Series Purgemeters"(TG-S0001).

TG-F2042-E02
3rd edition Sep 2020 K
1st edition Jul 2014 K

P-773 Purgemeter

ORDERING INFORMATION
Basic model code

Items to be speciﬁed①②③④⑤⑥
Fluid name − Flow range − Press. − Temp. − Mounting option − Other options

Ｐ-773- □ - □□□（Select in the model code table.）（Refer to "Index & Quick Reference for P Series Purgemeters" (TG-S0001).）

DIMENSIONS● Standard typeP − 773 − U0 □ 7● Standard typeP − 773 − 00 □ 2• Screw mounting on the panel front• Valve at the outlet• Screw mounting on the panel front• Without a valve
W142W2W24225
2-φ2-Rc3/8（MAX.50）（60）

W1252-φ2-φ8×t1.0

Panel cut

W1（mm）
394253W2（mm）
13104W3（mm）
222226• Screw mounting on the panel front• Valve at the outlet
W2（MAX.50）

Flow range code
A
B,12,3W1（mm）
394253115

W3

Panel cut
W2（mm）
13104W3（mm）
222226● Standard material● Reed switch alarm typeP − 773 − UA □ 7W42-φ5115

φ24144

W3115

74115
φ24144

Flow range code
AB,12,32-M4
Depth 52-φ574

2-M4
Depth 5（60）W1252-φ2-φ52-φ8×t1.078115

W374144115

2-M4
Depth 5Parts nameBody, Tapered tube
Float
Float stopper
Valve body
Valve needle
Scale plate
Side plate
CoverStandard material○ PFA integral mold
○ PTFE○ PFA○ PCTFE○ PCTFE
Transparent PVC
PVC
PVC

Parts marked ○ come in contact withthe measuring ﬂuid.

φ2413

Flow range code
B,12,3

Panel cut

W1（mm） W2（mm） W3（mm） W4（mm）
4210224253
42648

Note: Use non-magnetic material for the panel when the alarm output
code is one of A to D.

* 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 : https://www.tokyokeiso.co.jp
2TOKYO KEISO CO., LTD.

TG-F2042-E02