Butterfly valves are used where space is limited. Unlike gate valves,
butterfly valves can be used for throttling or regulating flow as well
as in the full open and fully closed position. The pressure loss through
a butterfly valve is small in comparison with the gate valve.
Butterfly Valve
Specification of Butterfly Valve
| Size |
50NB — 600NB |
| Material |
C.I. / C.S. / SS 304 / SS 316
with Neoprene / Nitrile / EPDM /
Silicon / Viton rubber seating.
|
| Pressure |
150PS1 |
| Temperature |
0 Deg C - 1200 Deg C. |
| Body , Chest |
Solid One piece casting of Cast Iron Fg 260, Cast
Steel Gr WCB ,CF8,CF8M. |
| Seat |
Integral to Body, Soft, Optional. |
| Gate |
AISI SS 304,316,316L,317,317L |
| Screw Spindle |
AISI SS 410,304,316. |
| Nut |
Brass |
| Yoke |
Plate type of MS . |
| Gland Follower |
Cast Iron , Cast steel , Ductile Iron ,CF8,CF8M.
|
| Hand Wheel |
Cast Iron , Cast steel , Ductile Iron |
| Gland Packing |
PTFE , PTFE Impregnated |
| Ends |
Lugged |
| Port |
STANDARD [Round], Optional V Port, Diamond Port,.
|
Butterfly Valves Sizes
| Size range |
40 MM to 700 MM |
Butterfly Valves Maximum pressure ratings
Operating Temperature of Butterfly Valves
| Maximum Operating Temperature |
20°C to 80°C |
