Butterfly Valve Types
We have 2 types of butterfly valves in our stocks: Wafer and Lug types. The most important feature that distinguishes these two types of butterfly valves is the way the valves are connected to the lines. Since each flange in Lug type butterfly valves has its own bolts, it is possible to clean, inspect and repair the valve without completely shutting down the system. On the other hand, wafer type butterfly valves are connected to the flange with the help of studs. In this case, it is not possible to clean, inspect and repair the wafer type valves without completely shutting down the system.
Our Butterfly Valve Product Types
- Connection Type: Wafer, Lug
- Our Gasket Types: EPDM-NBR-TEFLON – VITON
- Our Valve Types: Nickel-AISI304 – ASI316 -Teflon Shaft: AISI 420
- Our Valve Control Types: Pneumatic Actuator - Electric Actuator -Gear Box -Handle
- Max Working Pressure: 16 Bar
1valve Teflon Butterfly Valve
Stem: AISI 420
Gasket: PTFE
Body Material: GGG40
Valve: PTFE
Max. Operating Temperature: 180 °C
Max. Working Pressure: 16 Bar
1valve Wafer Type Butterfly Valve
Shaft: AISI 420
Seal: EPDM - NBR - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
1valve Wafer Type PTFE Gasketed Butterfly Valve
Shaft: AISI 420
Gasket: PTFE
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 180 °C
Max. Working Pressure: 16 Bar
1valve Lug Type Butterfly Valve
Shaft: AISI 420
Gasket: PTFE - NBR - EPDM - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
1valve Wafer Type Gear Boxed Butterfly Valve
Shaft: AISI 420
Gasket: PTFE - NBR - EPDM - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
Truevalve Lug Type Gear Box Butterfly Valve
Shaft : AISI 420
Seal : PTFE - NBR - EPDM - VITON
Body Material : GGG40 - GG25
Clapper : GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
1valve Wafer Type Pneumatic Actuated Butterfly Valve
Shaft: AISI 420
Gasket: PTFE - NBR - EPDM - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
1valve Lug Type Pneumatic Actuated Butterfly Valve
Shaft: AISI 420
Seal: PTFE - NBR - EPDM - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
1valve Wafer Type Electric Actuated Butterfly Valve
Shaft: AISI 420
Gasket: PTFE - NBR - EPDM - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
Actuator: 220V - 24DC
1valve Lug Type Electric Actuated Butterfly Valve
Shaft: AISI 420
Gasket: PTFE - NBR - EPDM - VITON
Body Material: GGG40 - GG25
Clapper: GGG40 - AISI304 - AISI316
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
Actuator: 220V - 24DC
1valve Double Flanged Butterfly Valve
Shaft: AISI 420
Gasket: PTFE - NBR - EPDM - VITON
Body Material: GGG40
Clapper: GGG40 - Stainless
Max. Operating Temperature: 120 °C
Max. Working Pressure: 16 Bar
Butterfly Valves: Design, Function and Applications
Butterfly valves are a versatile valve type used for flow control in pipelines. It takes its name from the butterfly wing-like design of the disc-shaped cover part. These valves are frequently preferred in low pressure systems and large diameter pipes because they can open and close quickly and have a compact structure.
Design and Working Principle of Butterfly Valves
The basic components of the butterfly valve include a disc, a shaft and a body. The disc is a rotating shaft that passes through the center of the valve. The user adjusts the position of the disc in the pipe section by rotating the shaft; this increases or decreases the passage area of ??the fluid.
Butterfly valves are generally divided into two main design types:
Central Butterfly Valves: The disc is located symmetrically along its shaft. This design is suitable for general use but may not be ideal for high performance applications.
Eccentric Butterfly Valves: The disc has an eccentric connection with the shaft. This design provides less wear and tear and can be used in higher pressure applications.
Advantages:
Fast Operation: Butterfly valves can open and close quickly, making them ideal for emergencies or systems that require speed.
Compact Size: They take up less space than other types of valves, making them useful in tight spaces.
Low Cost: They are relatively easy to manufacture. are less expensive, making them a budget-friendly option.
Application Areas
Butterfly valves are used in a variety of industries:
Water Management: They are ideal for flow control in treatment plants and water distribution systems.
Chemical Industry: Used during the transportation of chemicals, but material compatibility must be considered.
Food and Beverage: Food processing with hygienic design requirements. They can be used in applications.
Maintenance and Repair
Regular maintenance of butterfly valves extends their performance and life. Maintenance includes gasket replacement, lubrication and checking of mechanical parts. Correct maintenance increases operational efficiency by preventing potential malfunctions.
Butterfly valves are one of the preferred valve types in many systems with their flexibility, economic efficiency and fast operation ability. However, it is critical to choose the right design to meet the specific needs of each application.