Lug Butterfly Valves

Short Description:

Casting butterly valves

1- Casting Carbon Steel,Stainless Steel,Duplex,Special Materials

2- Lug Type,

3- Metal seated and Soft Seated

4- 150Lb & 900Lb

5- 2”~24”

Product Detail

Product Tags

Product Description

Product description

Triple-eccentric,Double-eccentric,Centreline butterfly valve


Lug type

Nominal diameter

NPS 2”~24”(DN50~DN600)

Operating temperature


Nominal pressure

CLASS 150~900 (PN20~PN150)


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

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