The meaning of various letters and numbers in the butterfly valve model


Material of main parts:

valve body

valve plate

shaft

bushing

valve seat

Material name

code

Material name

code

Material name

Material name

Material name

code

Applicable temperature ℃

grey cast iron

Z

Electroplated ductile iron

B1

Stainless steel

carbon steel

Stainless steel



carbon steel

Lubricated bronze

Teflon

PTFE

Lubricated bronze

Teflon

PTFE

natural rubber

X1

-20 ~ +85

Ductile Iron

Q

aluminum bronze

B2

Hypalon

X2

-18 ~ +135

short time

-18 ~ +149

aluminum bronze

T

ZG1Cr18Ni9Ti

Stainless steel

B3

Ethylene propylene rubber

X3

-45 ~ +135

short time

-50 ~ +150

ZG1Cr18Ni9Ti

Stainless steel

P

Titanium steel

B4

Neoprene

X4

-7 ~ +93

short time

-7 ~ +107

CF8M stainless steel

R

CF8M stainless steel

B5

Nitrile rubber

X5

-12 ~ +82

short time

-12 ~ +93

carbon steel

C

carbon steel

B6

Wear-resistant rubber

X6

-10 ~ +50

CF8 stainless steel

B7

fluororubber

X7

-23 ~ +150

Heat-resistant ethylene-propylene rubber

X9

-20 ~ +150

Teflon

F4

+10 ~ +150

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