The Company
Language
EN | DE
menu

Type 06421

Datasheet ID: CR_06421
Field of application chevron-down

Applications:

Provided as safety device for protection against excessive pressure in stationary and moveable gas

cylinders and pressure vessels. Approved for air gases, vapours and cryogenic liquefied gases incl. LNG.

Working temperature: -196°C / -321°F (77K) up to +185°C / +365°F (458K), with PCTFE-seal up to +150°C / 302°F (423K), suitable for horizontal installation

Description chevron-down

Cryogenic Safety Valves, angle type, bronze, PN40

d0=7,0 & 10,5mm up to PN50,

type tested TÃœV-SV.1111. S/G

Standard safety valve,

with PCTFE valve seal (except d07, which is metal to metal seated only: in this case

the Part No. changes from 06421.X.X000 to 06421.070X.X100), closed bonnet

"¦cleaned and degreased for oxygen servive¦"

Part No. 06421.X.0000

Inlet: female thread type G (BSPP) acc. to ISO 228/1

Outlet: female thread type G (BSPP) acc. to ISO 228/1

Certificates chevron-down
Transportable Pressure Equipment Directive (2010/35/EU) chevron-down
ASME Code (ASME Code Section VIII) chevron-down
Canadian Registration Number (CRN) chevron-down
ClassNK (Class Rules) chevron-down
BV (Class Rules) chevron-down
RINA (Class Rules) chevron-down
Pressure Equipment Directive (2014/68/EU) chevron-down
TÜV Verband (Approval mark number) chevron-down
ABS (Class Rules) chevron-down
25-0381115-PDA
Ukraine (Ukraine) chevron-down
Data sheets chevron-down
Operating Instructions chevron-down
Declarations of Conformity chevron-down
Transportable Pressure Equipment Directive (2010/35/EU) chevron-down
Pressure Equipment Directive (2014/68/EU) chevron-down
Pressure Equipment Safety Regulation 2016 (PESR 2016) chevron-down
More Information
Type (Series) 06421
Solution LNG, Air Gases
Solution Area Transport, Storage, Refueling, Processes
SKU CR_06421
Materials

Materials

DIN EN

ASME/ASTM

1

Outlet body

CC491K

SB 62 UNS C83600

2

Inlet body

1.4301

SA 479 Grade 304

3

Valve seal

PCTFE

1.4571

1.4541

A 313 Grade 316Ti (d07)

A 276 Grade 321 (d010.5)

4

Disc

CC493K

B 505 UNS C93200

5

Guide plate

CW493K

B 505 UNS C93200

6

Stem

CW453K

B 103 UNS C52100

7

Spring

1.4571

A 313 Grade 316Ti

8

Bonnet

1.4301

A 276 Grade 304

9

Spring clamp

CW614N

B 455 UNS C38500

10

Thread ring

CW614N

B 455 UNS C38500

11

Cap

CW614N

B 455 UNS C38500
Versions

Type 06421

Technical data

Nominal size

GW

1/2

1/2

3/4

1

1-1/4

Orifice

d0

7.0

10.5

14.0

18.0

23.0

Dimension Code

.X.

0704

1004

1406

1810

2312

Set pressure range

bar

0.4-50.0

0.4-50.0

0.4-40.0

0.4-40.0

0.4-10.0

Outlet

GA

1

1

1-1/4

1-1/2

1-1/2

Height

H

145

145

164

195

200

Length

L1

36

36

50

48

48

Length

L2

41.5

41.5

49

59.5

65

Wrench size across flats

S1

36

36

41

50

50

Wrench size across flats

S2

41

41

50

58

58

Weight

ca. kg

0.80

0.795

1.25

1.87

1.79

Coeff. of discharge from 3.0 bar

αw

0.78

0.69

0.66

0.66

0.54
Product Variants

Product Variants

Filter our product by specific attributes
Name Connection inlet Connection outlet Connection dimension inlet Connection dimension outlet Link to product
/
?