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[Double King Knowledge Base - Technical Parameters of Hygienic Butterfly Valves]
Main technical parameters of sanitary butterfly valve : GB/T2238-1989
Nominal diameter
DN (mm)
15~150
Nominal pressure
PN (MPa)
0.6
1.0
1.6
test pressure
Strength test
0.9
1.5
2.4
Seal test
0.66
1.1
1.76
Gas seal test
0.6
0.6
0.6
Applicable medium
Air, water, steam, oil, etc.
Drive form
Manual, worm and worm gear drive, gas drive, electric drive.
Connection method
Quick-fit, clamp, external, welded, etc.
Material of the main part
Part Name
material
Valve body
304, 316, 316L
Butterfly board
304, 316, 316L
Seal ring
Silicone rubber, fluorine rubber, polytetrafluoroethylene
Valve stem
304, 316, 316L
filler
Silicone rubber, fluorine rubber, polytetrafluoroethylene
Butterfly valve sealing material selection and applicable temperature
Material variety
PTFE
Silicone Rubber
fluororubber
natural rubber
nylon
English short name
PTFE
SI
VITON
NR
PA
Model code
F or XC, JC
XD or JD
XE or JE
X1
N
Resistant to Zui high temperature
232 ° C
250 ° C
204 ° C
85 ° C
93°C
Resistant to Zui low temperature
-268°C
-70 ° C
-23 ° C
-20 ° C
-73 ° C
Applicable working temperature
-30~+150°C
-70~+150°C
-23~+150°C
-20~+85°C
-30~+93°C
Further reading: Butterfly valve standard GB/T2238-1989 Dimensions
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