Lug Type Butterfly Valve
Lug butterfly valve has simple structure, small volume, light weight, and has good fluid control characteristics. Its disc is installed in the diameter direction of pipeline, so the valve can be quickly opened and closed by rotating its disc 90 degrees.
The wafer body is easy to be connected between two pipeline flange with flange bolts, and it can be used at end in a fluid system,when installed with the seat retainer plate on the pressure side(API 609)
Lug butterfly valves designed to comply with MSS SP-67, BS5155 and API 609. Compatible with GB, ANSI, DIN, BS, JIS flanges. Available in size 1½″ to 48″. Available with handles (1½″ to 12″), manual gear operators (1½″ to 48″), and electric or pneumatic actuators (1½″ to 48″). With many body/trim combinations, Lug butterfly valve can meet your application.
Lug TypeButterfly Valve Dimensions
|
Item |
Part Name |
Materials |
|
1 |
Body |
Cast Iron: ASTM A126CL. B , DIN1691 GG25, EN 1561 EN-GJL-200; GB12226 HT200; |
|
Ductile Cast Iron: ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10; |
||
|
Stainless Steel: ASTM A351 CF8, CF8M; CF3, CF3M; |
||
|
Carbon Steel: ASTM A216 WCB |
||
|
2 |
Stem |
Zinc Plated Steel; |
|
Stainless Steel: ASTM A276 Type 316, Type 410, Type 420; ASTM A582 Type 416; |
||
|
3 |
Taper Pin |
Stainless Steel: ASTM A276 Type 304, Type 316; EN 1.4501; |
|
4 |
Seat |
NBR, EPDM, Neoprene, PTFE, Viton; |
|
5 |
Disc |
Ductile Cast Iron (Nickel plated):ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10; |
|
Stainless Steel: ASTM A351 CF8, CF8M; CF3, CF3M; EN 1.4408, 1.4469; 1.4501; |
||
|
AL-Bronze: ASTM B148 C95400; |
||
|
6 |
O-Ring |
NBR, EPDM, Neoprene, Viton; |
|
7 |
Bushing |
PTFE, Nylon, Lubricated Bronze; |
|
8 |
Key |
Carbon Steel |
Lug Type VS Wafer Type
The valve (Lug Type and Wafer Type) is made of cast iron, ductile iron, cast steel as well as stainless steel
The valve (Lug Type and Wafer Type) has low pressure, DIN PN10/16, ASTM CL125/CL150, JIS 5K/10K
Both Lug and wafer are used in a number of applications for industrial sectors that include food processing, pharmaceutical, chemical, oil, gas, water as well as wastewater management.
The wafer valve is designed to be clamped between two flanges. And the Lug valve can be installed on the piping by threaded bolts or flanges.
Both Lug and water valves can adjust (1/4-22.5°, 1/2-45°) and close the flow. And this two kinds can be installed with electrical actuator for more convenience.
This wafer type can be replaced by lug type in using, but the opposite is not true.
Lug Type Butterfly Valve FAQ
How Do You Install a Lug Type Butterfly Valve?
Putting the butterfly valve in the middle of the two flanges which fully welded to both ends of the pipe and locking the butterfly valvesthrough the pipe flange with double head bolts, it should always be installed concentrically between flanges, position disk in the closed position during installation to prevent damage of disc sealing edge, Try the disc by moving it from the closed position to open and back to ensure it moves flexibly
How Does a Lug Type Butterfly Valve Work?
What is the Construction of the Lug Type Butterfly Valve?
Send product request
Other supplier products
 |
ANSI 150 Flange | ANSI 150 flange, the standard flange with pressure grade CLASS150 (150LB), is the most widely used pressure flange in practice, its relevant flange... |
 |
Hebei Longsheng | Hebei Longsheng |
 |
Hebei Longsheng Metals & Minerals Co., Ltd. | Hebei Longsheng Metals & Minerals Co., Ltd. |
 |
King Nipple Galvanized Seamless / Welded | Galvanized KC Nipple and seamless weld joint comprises two, the teeth and the threaded ends horses, and can be connected to the threaded end of the... |
 |
Carbon Steel Pipes | Carbon steel pipes include seamless and welded constructure. Seamless steel pipes are mainly used for liquid transport, and are applicable to trans... |
Same products
 |
4800030000 For daewoo,evobus,mercedes-benz,paccar foot brake valve | Seller: Zhuji Oubote Auto Parts Co., Ltd. | 4800030000 foot brake valve are attached to the brake pedal. This isthe valve that actually start... |
 |
Aluminum Gas Valve | Seller: Dong Guan ABYDA Gas Valve Co., Ltd | Product Specification:1. Raw Material: Al Alloy + solid brass + Mild steel;2. Applicable for LPG,... |
 |
Yoyik supply Fan slider S4GA8814 for turbine generator | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | Yoyik supply Fan slider S4GA8814 for turbine generator Is a major production of Dongfang Yoyik. D... |
 |
API 6A FC Slab Gate Valve | Seller: China JSC Valve Manufacturer Group Co., Ltd. | FC gate valve adopts a non-rising stem, slab gate, full-size conduit design, floating slab gate a... |
 |
API 599 Lubricated Plug Valve | Seller: China JSC Valve Manufacturer Group Co., Ltd. | Full Bore Metal Seated Lubricated Plug ValveProduct description: Pressure balance, lubricated, fu... |
