High Flow Manual Diaphragm Valve

Specification

Size

3/4”

1”

Cv Value

3.5

3.5

Orifice Size (㎜)

20

20

Max. Working Pressure

1.86 MPa

Max. Working Temp.

PCTFE

-10 ℃ ~ 80 ℃

Internal Leakage

Test Pressure ≤ 1 x 10-2  Torr

Holding Time ≥ 1 min.

≤ 1×10-9 mbar.l/sec

External 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 Seat

PCTFE

③ Diaphragm

ELGILOY®

④ Actuator

Aluminum

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

HFDV

Product

12

Size

MV

Connection

E

Grade

S

Material

Product

Size

Connection

Grade

Material

HFDV

12

3/4″

MV

Male

E

EP

D

SUS316L

Double Melt

 

16

1”

FV

Female

B

BA

S

SUS316L

Single Melt

                 

Dimension

Model

Connection

Size

A

(㎜)

B

(㎜)

C

(㎜)

D

(㎜)

E

(㎜)

Male

3/4″

159.8

50

74

17.5

50

1″

173.4

50

74

17.5

50

Female

3/4″

125.6

50

74

17.5

50

1″

133.8

50

74

17.5

50

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