Threaded Check Valve

Specification

Size

1/4″

3/8”

1/2″

Cv Value

0.35

1.1

1.1

Max. Working Pressure

16.2 MPa

Craking Pressure

2.26 kPa

Back Pressure Seal

29.4 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 Gasket

SUS316L

③ Seat O-Ring

FFKM

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

CV

Product

04

Size

MV

Connection

E

Grade

S

Material

Product

Size

Connection

Grade

Material

CV

04

1/4”

MV

Male

E

EP

D

SUS316L

Double Melt

 

06

3/8”

FV

Female

B

BA

S

SUS316L

Single Melt

 

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

3/8″

24

55.9

32

1/2″

24

57.8

32

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