Lug Butterfly Valves,high performance
Product Description
Product description |
Triple-eccentric,Double-eccentric,Centreline butterfly valve |
Model |
Lug type |
Nominal diameter |
NPS 2”~24”(DN50~DN600) |
Operating temperature |
-196℃~593℃ |
Nominal pressure |
CLASS 150~900 (PN20~PN150) |
Material |
A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15; A351 CF8、CF8M、CF3、CF3M、CF8C、CN3MN、CK3MCUN、CN7M; A352 LCB、LCC;A494 CW-6MC、CU5MCuC、M35-1;A890 4A(CD3MN)、5A(CE3MN)、6A(CD3MWCuN); ASME B 148 C95800、C95500 |
Design standard |
API 609、ASME B16.34 |
Structural length |
ASME B16.10、GB/T 12221 |
Connecting end |
ASME B16.5、ASME B16.47、ASME B16.25、GB/T 9113 |
Test standard |
API 598、ISO 5208、GB/T 26480、GB/T 13927 |
Operation method |
Handle, gearbox, electric actuator, pneumatic actuator |
Application fields |
Metal seated type typical application is Petrochemical plant,refinery,offshore platform,power plant,LNG,steel mills |
Other remarks1 |
Compact structure, easy installation and disassembly, repair friendly and light weight |
Other remarks2 |
It has a certain adjustment capability, and can be used as a control valve. |
Other remarks3 |
With the triple-eccentric structural design, the sealing face is separated as soon as opening, so the mechanical wearing and friction between two sealing faces is eliminated during the opening and closing of butterfly plate, the operation torque is lowered, and the service life is longer. |
Other remarks4 |
Good sealing performance of zero leakage. |
Other remarks5 |
Wide range of application - triple-eccentric metallic sealing butterfly valves have a wide range of temperature, pressure and diameter. |
Triple offset frictionless design
1st offset-shaft rotation center is offset from the centerline of valve seat,provide a completed sealing contact between discand seat
2nd offset-shaft totation centre is offset from centerline of valve body,greatly reduce the friction between disc and seat during valve closing and opening
3rd offset-seat cone center is offset from the valve centreline,completely eliminate the mechanical between disc and seat,it is a torque seated,process pressureaided frictionless seal valve,ideally suitable for metal seated valves on high temperature,high pressure and firesafe application