Design manufacturing standard
|
Types
|
GB
|
ASME
|
DIN
|
JIS
|
|
Design
|
GB/T12237/1989
|
ASME B16.34
API608
|
DIN 3357/1
2EN12516-1
|
ASME B16.34
API608
|
|
Pressure class
|
PN116-PN40
|
ASME B16.34 CLASS 150
ASME B16.34 CLASS 300
|
DIN3357/EN 12516-1
PN10-PN40
|
JIS B2001 10K
JIS B2001 20K
|
|
Structure length
Face to face
|
GB/T12221
|
ASME B16.10
|
DIN 3202
|
JIS B2002
|
|
Flange size
|
GB/T9113 JB/T79
|
ASME B16.5
|
DIN 2543-2545
|
JIS B2212
JIS B2214
|
|
Inspection
Testing
|
GB/T13927
|
API 598
|
DIN 3230/3
|
JIS B2003
|
|
Fire safe
|
API 607
|
API 607 4 th1993
|
API 607 4 th1993
|
API 607 4 th1993
|
Body
Nominal size: DN15-DN200
Body material: WCB, 304, 316, 316L
Connection type: Flange
Pressure class: PN16-PN4.0MPa
Structure type: Floating ball core
Valve components
Seat material: PTFE: -30~180C
PPL: -30~250C
Core material: 304, 316, 316L
Stem material: 304
Applicable medium: Water, oil, steam, etc
Performance
Fire protection design
ISO5211 standard direct mounting actuator
Antistatic device between the core and the valve body
Stem explosion-proof design
Double butterfly shaped spring automatic compression packing design
Allow pressure differential: Less than nominal pressure 1.6MPa
Leakage: Zero leakage
Return difference: ±2.5%