Divers
Lug Type Butterfly Valve
|
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; |
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Stainless Steel: ASTM A351 CF8, CF8M; CF3, CF3M; |
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Carbon Steel: ASTM A216 WCB |
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2 |
Stem |
Zinc Plated Steel; |
Stainless Steel: ASTM A276 Type 316, Type 410, Type 420; ASTM A582 Type 416; |
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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; |
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AL-Bronze: ASTM B148 C95400; |
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6 |
O-Ring |
NBR, EPDM, Neoprene, Viton; |
7 |
Bushing |
PTFE, Nylon, Lubricated Bronze; |
8 |
Key |
Carbon Steel |
Lug Type VS Wafer Type
1. Material (Similarity):
The valve (Lug Type and Wafer Type) is made of cast iron, ductile iron, cast steel as well as stainless steel
2. Design Pressure (Similarity):
The valve (Lug Type and Wafer Type) has low pressure, DIN PN10/16, ASTM CL125/CL150, JIS 5K/10K
3. Range of Applications:
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.
4. Installation (Similarity and Difference):
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.
5. Action:
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.
6. Alternative:
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 valves through 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?
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Cette page concerne les importateurs et exportateurs de Lug Type Butterfly Valve Rechercher dans la catégorie : Divers Rechercher dans la catégorie : butterfly, type, valve |
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