Wafer Butterfly Valve
·Valve Standard:Comply with EN593/BS5155/MSS SP-67.
·Working Pressure and Temperature
Size 50 to 600,working pressure PN 16/class1 125.
Size 50 to 300,working pressure PN 20/class1 150.
Size 50 to 300,working pressure PN 25/class1 250.
Temperature from -10℃ to 120℃ for EPDM liner.
Temperature from -10℃ to 82℃ for NBR liner.
Temperature from -10℃ to 150℃ for Viton liner.
·Top Flange standard: Comply with ISO5211/1.
·Flange Type:EN1092-2 PN10/PN16/PN25,ANSI B16.1 class1125, ANSI B16.2 class1250,BS10 Table D/E,JIS 10K/16K.
·Operator:Handle or gear operator.
·Materials Specification
|
Part Name
|
Material
|
EN Spec.
|
ASTM Spec.
|
|
Body
|
Cast Iron
|
EN-JL1040
|
A126 class1 B
|
|
Shaft
|
Stainless Steel
|
BS970 420S37
|
AISI 420
|
|
Disc
|
Stainless Steel
|
BS970 304S15
|
A351 CF8
|
|
Bronze
|
EN1982 CC491K
|
B62 C83600
|
|
|
DI Nichel Plated or FBE Coated
|
EN-JS1050
|
A536 65-45-12
|
|
|
Bushing
|
PTFE
|
Commercial
|
Commercial
|
|
Liner
|
EPDM/NBR/VITON
|
Commercial
|
Commercial
|
|
O-Ring
|
EPDM/NBR/VITON
|
Commercial
|
Commercial
|