| |  | | Butterfly
Valves |
| | Wafer
type or lugged type
|
| Description: | | Design
and manufacture:
MSS SP-67, API 609 |
| Test
and inspection:
API 598 . |
| Flanged
end: ANSI
B16.1, BS4504, ISO2084
and DIN2501 etc. |
| Top
flange: ISO5211 |
|
Center line butterfly
valve |
|
Resilient seat |
| Shaft:
Round, double D
or square type |
| Size:2" ~ 32"
(DN50 ~ 800) |
| Working
pressure:
1.0MPa / 1.6MPa /
Class125 |
| Operator:lever, gear, electric
or pneumatic actuator |
|
|
| Standard
materials of parts |
Body | Grey iron, Ductile
iron, Cast steel, Strainless
steel
| Disc | Ductile iron, Aluminum
bronze, Stainless steel
| Stem | Stainless steel | Bushing | Lubricated bronze,
PTFE
| Seat | BUNA, EPDM, Neoprene,
PTFE, NR, NBR, Hypalon,
VITON
| Pin | Stainless steel | O-ring | BUNA, EPDM |
|
|
|
