Welded Check Valve

Specification

Size

1/4″

1/2″

Cv Value

0.55

0.7

Max. Working Pressure

20.6 MPa

Craking Pressure

14 kPa

Back Pressure Seal

28 kPa

Max. Working Temp.

-10 ℃ ~ 80 ℃

Atmospheric Temp.

-10 ℃ ~ 60 ℃

Internal Leakage

Test Pressure ≤ 1 x 10-2  Torr

Holding Time ≥ 1 min.

≤ 1×10-9 mbar.l/sec

Particle Inspection

Pressure :30 ~ 60 psi N2 Gas

Sample Volume :  1 CFM / 0.1 ㎛ and Larger

No Count

Materials

Parts Materials

① Body

SUS316L (Single Melt / Double Melt)

② Piston

SUS316L (Single Melt)

③ Piston Stopper

SUS316L (Single Melt)

④ Spring

Ni-Co Alloy

⑤ O-Ring

FKM / EPDM

Surface Roughness

BA

EP

Ra ≤ 10 μinch

Ry ≤ 3.0 ㎛

Ra ≤ 5 μinch

Ry ≤ 0.7 ㎛

Cut off Length : 0.8 ㎜

Cut off Length : 0.25 ㎜

Measuring Length : 4 ㎜

Measuring Length : 1.25 ㎜

Bright Annealed

Electro Polished

Ordering Information

WCV

Product

04

Size

MV

Connection

E

Grade

S

Material

F

O-Ring
Material

Product

Size

Connection

Grade

Material

O-Ring Material

WCV

04

1/4”

MV

Male

E

EP

D

SUS316L

Double Melt

F

FKM

 

06

3/8”

FV

Female

B

BA

S

SUS316L

Single Melt

E

EPDM

 

08

1/2″

LOK

Lok

           

Dimension

Model

Connection

Size

A

(㎜)

B

(㎜)

C

(㎜)

Male

1/4″

19

56.4

25.4

1/2″

24

69

32

Female

1/4″

19

70

25.4

1/2″

24

79

32

Lok

1/4″

19

46

25.4

1/2″

24

57.8

32

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