Pipeline ancillaries

Disc, split disc and wafer check valves

7.6.17

DCV10

DN25 - DN100

Materials

No.Part

1 Body

2 Disc

3 Spider

4 Spring

5 Gaskets

PN

ASME

Material

Austenitic stainless steel

Austenitic stainless steel

Austenitic stainless steel

Austenitic stainless steel

1.4308

A351 CF8

A276 316L

AISI 316L

1

5

3

1

Martensitic stainless

steel

Stainless steel

2

4

BS 3146-2 ANC2

BS 2056 316

S42

Reinforced exfoliated graphite

DCV10 and DCV10

DN125 - DN250

No.Part

Material

5

3

2

4

DCV10

PN

ASME Austenitic stainless steel

PN

Austenitic stainless steel

ASME Austenitic stainless steel

PN

Austenitic stainless steel

ASME Austenitic stainless steel

Stainless steel

Reinforced exfoliated graphite

1.4308

A351 CF8

1.0619+N

A216 WCB

1.4308

A351 CF8

1.4308

A351 CF8

316L

Austenitic stainless steel

1 Body

2 Disc

3 Seat

4 Spring

5 Gaskets

Kv values

Size

DN25

DCV10C

PN

ASME Carbon steel

Carbon steel

DN40

DN50

DN80

DN100

DN125

DN150

DN200

DN250

Kv

10.8

26

43

80

130

188

213

432

735

For conversion:

Cv (UK) = Kv x 0.963

Cv (US) = Kv x 1.156

Opening pressures in mbar

Differential pressures with zero flow.

Flow direction

DN

Page 2 of 6

DN25

DN40

DN50

DN80

25.0

28.0

29.0

31.0

22.5

24.5

24.5

25.5

20.0

20.0

20.0

30.0

DN100

DN125

33

44

27

32

20

20

DN150

DN200

DN250

46

48.5

54

33

34

37

20

20

20

TI-P601-32 CMGT Issue 7

DCV10 Stainless Steel and DCV10C Carbon Steel Centrally Guided Disc Check Valves