Serial No.；TDS-V21-E_1
DATASHEET

Wafer Check VALVEFeatures-Strength concerns of plastic wafer check are resolved using stress analysis.
Corrosion resistance is improved by all-plastic wetted part and coated spring.
Weight is 1/3 to 1/5 of that of metal type.
Stopper-integrated structure eliminates the use of gasket during piping,allowing cost reduction.

Basic specifications- Valve Type- Size
- Body Material- Seal Material- Connection//BodyMaterial

FLUID
TEMPERATURE ﾟC {ﾟF}

U-PVC

O-ringWafer

0 ~ 50：：：：：{ 30~122 }Wafer Check Valve
80 mm ― 300 mm (3 inch ― 12 inch)
U-PVC (Conforming to ASTM D1784 Cell Classification 12454A)
EPDM, FKM
JIS B2220 10K, DIN/EN1092-1, ANSI B16.5

Working Pressure(Normal temperature) MPa {psi }Design Pressure(Normal temperature) MPa {psi }80mm-200mm

250mm, 300mm

80mm-200mm

250mm, 300mm

0.75 { 110 }0.45 { 65 }1.0 { 150 }0.6 {85 }Note：:The maximum working pressure is the value including the water hammer pressure. Be careful that the maximum working pressure
is not exceeded during use.
The wafer check valve is most suited for water and sea water lines. When it is used for a chemical line, contact us to check thechemical resistance.
They can be used for both horizontal and vertical pipes, but make sure during installation that the arrow direction of the valve bodyis aligned with the flow direction of the fluid.
*Concerning the allowable pressure for each temperature and material, see the technical documents at the next page of this sheet.

Certificate / Approval / Directive
PED, ABS, NSF/ANSI61“For details of applicable products, please consult us.”

ASAHI YUKIZAI CORPORATION

Page ; 1/6

Serial No.；TDS-V21-E_1
DATASHEET

Working pressure vs. Temperature
WAFER CHECK VALVEMANUAL： 80mm - 200mm
MAXIMUM WORKNG PRESSURE MPa {psi}

MAXIMUM WORKNG PRESSURE MPa {psi}

WAFER CHECK VALVEMANUAL
1.0{150}

0.5{70}0.0： 250mm , 300mm

1.0{150}

0.5{70}0.0-40{-40}-20{-5}0{30}20{70}

40{105}60{140}80{175}100{210}120{250}-40{-40}-20{-5}0{30}TEMP. ﾟC {ﾟF}

20{70}

40{105}60{140}80{175}100{210}120{250}TEMP. ﾟC {ﾟF}

Make sure that the temperature and pressure are within the working range during operation.
(If the tolerance range is exceeded during use, the valve may be damaged.)

ASAHI YUKIZAI CORPORATION

Page ; 2/6

Serial No.；TDS-V21-E_1
DATASHEET

Product dimension
125mm (5”), 150mm (6”), 250mm (10”), 300mm (12”)(SPRING TYPE)FLOWFlange Center
Path Center

80mm (3”), 100mm (4”), 200mm (8”)■JIS, DIN (Unit: mm)

JIS 10K

DIN PN10DDmminchdDLlnn803471446322.61508160

810045217570

34.9

175

8180

8125

577

190

76

50.9

210

8210

8150

692

220

82

64.8

240

8240

8E-E

200

8132

279

101

93.6

290

12295

8250

10177333

114

129.0

355

12350

12300

12217

378

115

165.6

400

16400

12

■ANSI (Unit: inch)
inch

mm

d

ANSI Class150
D

L

lD

n

380

1.85

5.67

2.48

0.89

6.00

44100

2.05

6.89

2.76

1.37

7.50

85125

3.03

7.76

2.99

2.00

8.50

86150

3.62

8.74

3.23

2.55

9.51

88200

5.20

10.98

3.98

3.69

11.75

810250

6.97

13.39

4.495.08

14.25

1212300

8.54

16.14

4.53

6.52

17.01

12ASAHI YUKIZAI CORPORATIONThe shape and appearance of the assembly differ a little withnominal size and a connection standard of this drawing.

Page ; 3/6

Serial No.；TDS-V21-E_1
DATASHEET

Parts list
125mm (5”), 150mm (6”), 250mm (10”), 300mm (12”)

SPRING TYPE

E-E

80mm (3”), 100mm (4”), 200mm (8”)

E-EPART NO./NAME

MATERIAL

QTYPART NO./NAME

1BODY

12DISC

13STOPPER

14SHAFT

15SHAFT PLUG

19O-RING ( A )36BOLT210O-RING ( B )111O-RING ( C )17I BOLTQTY

1MATERIAL
Chromized STEELUnichromePVCASAHI YUKIZAI CORPORATION

8SPRING

1SWP-B PTFE Coating
Used for Spring Type only

EPDM, FKM

Page ; 4/6

Serial No.；TDS-V21-E_1
DATASHEETCv value for each opening degree
FULL-OPEN Cv VALUE
mm80100

125150200250300inch

345681012137

200372663

1225

20613017

FULL-OPEN
Cv VALUE

Pipe bolt dimensions (Reference: recommended data)

WAFER CHECK VALVEFLANGED (JIS10K)

UNIT: mm

SIZE80100125150200250300

SCREW SIZE (d)M16M16M20M20M20M22M22NO.OF FLANGE HOLES

8888121216FLANGE THICKNESS

22222426283030

WAFER CHECK VALVE (L)150160175185210230230

The above values indicate the bolt dimensions when an AV TS flange is used.

Product weight
WAFER CHECK VALVE

UNIT : kg

FLANGED(JIS 10K)

mminch

80

31.0

100

41.8

125

52.1

150

62.9200

84.6

250

107.6300

1212.0ASAHI YUKIZAI CORPORATIONU-PVCPage ; 5/6Serial No.；TDS-V21-E_1
DATASHEET

Product model code list

VACTUATIONTYPEOPERATINGSYSTEM

BODY
MATERIAL

SEALMATERIAL

VWC

ZZ

U::::

MANUAL VALVEWC WAFER CHECKZZ NONEUU-PVCSTANDARD

SIZE*W****::::E

EPDM

W WAFER

DDIN

080 80mm

VFKM

AANSI

1JIS 10K～CONNECTION

300 200mm

Installation, Operation and Maintenance Manual"For details of Installation, Operation and Maintenance, please refer IOM at below link"

http://www.asahi-yukizai.co.jp/en/product/mt_pdf/a_manual_Valve_4_02.pdf

ASAHI YUKIZAI CORPORATION

Page ; 6/6