Triple offset butterfly valves offer a unique design that helps improve performance while also maximizing efficiency. These valve types are commonly used for a variety of applications where precise flow control is required. As triple offset butterfly valve supplier, let’s take a look under the hood to understand how triple offset butterfly valves work.
What Is A Triple Offset Butterfly Valve?
A triple offset butterfly valve features a disc that moves in a zigzag pattern instead of a linear fashion. This “offset” design helps reduce friction, wear, and torque, especially at low speeds. The disc moves through three distinct offsets as it rotates:
- Primary offset – The disc is slightly offset from the center of the valve body.
- Secondary offset – The disc shaft is offset from the centerline of the disc.
- Tertiary offset – The sealing surface of the disc is offset from the centerline of the disc.
This triple offset pattern helps reduce torque by up to 50% compared to a standard butterfly valve. It also helps reduce fugitive emissions since the staggered movement allows for a tighter shut-off and better seat sealing.
Key Benefits Of Triple Offset Butterfly Valves Provided By Supplier:
- Lower operating torque
- Reduced risk of seat and disc wear
- Tighter shut-off and better sealing
- Simple and reliable design
- Low maintenance
Applications Of China Triple Offset Butterfly Valve
Triple offset butterfly valves are commonly used for regulating the flow of liquids and gases in a variety of industrial applications, including:
- Oil and gas pipelines
- Petrochemical plants
- Power plants
- Pulp and paper mills
- Water and wastewater treatment systems
- Pharmaceutical facilities
How The Triple Offset Design Reduces Torque
The zigzag path that the disc takes makes it so there is less surface area in contact with the valve seat at any given time. This results in lower friction, which means lower torque is required to open and close the valve.