DN40-DN100 Small Butterfly Valves

No.

Part

Material

Specification

Remarks

JIS

ASTM

1

Body

Cast Iron

FC 200

A126CI.B

DN40-600

Ductile Iron

FCD 400

A395

Stainless Steel

SCS 13A

A351 Gr.CF8

SCS 14A

A351 Gr.CF8M

2

Disc

Ductile Iron

FCD 400

A395

Nylon 11 coated

Stainless Steel

SCS 13A

A351 Gr.CF8

SCS 14A

A351 Gr.CF8M

Alu-Nronze

ALBC2

B148 C95400

3

Seat

NBR(Nitrile)

-10° - 80T)( 14° -176°F)

EPDM

-20.-4.- 248°F)

EPT

-20.-140^( -4° - 284°F)

Neoprene(CR)

0° - 8CTC( 32° - 176°F)

Silicon(SI)

-20.-1801( -4° -356°F)

Hypalon(CSM)

-20.-135t( -4° -275°F)

Viton

-18.dCMtf-CU.- 400°F)

4

Stem

Stainless Steel

SUS410

A182Gr.F6A

SUS 304

A182 Gr.F304

SUS316

A182 Gr.F316

5

Pin

Stainless Steel

SUS 304

A182 Gr.F304

6

Bush

Delrin

7

O-ring

NBR(Nitrile)

8

Thrust Ring

Stainless Steel

SUS 304

A240 Gr.304

9

Bush

Bronze

C6

B62

For cast iron and ductile iron body

10

Buss

RTFE+Stainless Steel

RTFE+
SUS 316

RTFE+

A240 Gr.316

11

Upper Cover

Cast Iron

FC 200

A126CI.B

For cast iron and ductile iron body

Stainless Steel

SUS 304

A240 304

For stainless steel body

12

Bottom Cover

Cast Iron

FC 200

A126-B

For cast iron and ductile iron body

Stainless Steel

SCS 13A

A351 Gr.CF8

For stainless steel body

13

Bearinq

PTFE+316SS

14

Bolt

Steel