Triple Eccentric Butterfly Valve

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Triple Eccentric Butterfly Valve Specification

Connection
Flanged, Lug, Wafer

Valve Type
Triple Eccentric Butterfly Valve

Material
Carbon Steel / Stainless Steel / Alloy Steel

Power Source
Manual, Pneumatic, Electric, Hydraulic

Pressure
Class 150/300/600, PN10/16/25/40, up to 100 bar

Media
Water, Oil, Gas, Chemicals, Steam

Working Temperature
-29C to +425C (Depending on Material)

Port Size
DN50 DN2000 (2 80) or Customized

Shape
Wafer / Lug / Double Flanged

Design Standard
API 609 / EN 593 / ASME B16.34

Body Coating
Epoxy Painted / Polyurethane / Customized

Shaft Material
AISI 410 / 17-4PH / Duplex Stainless Steel

Application
Refinery, Petrochemical, Oil & Gas, Power Plants, Water Treatment

Testing Standard
API 598, EN 12266

Leakage Class
Zero Leakage, Bubble Tight

Disc Material
Stainless Steel / Duplex / Monel / Customized

End Connection Standard
ASME B16.5, EN 1092

Face to Face
API 609, EN 558

Seat Material
Metal Seated, Laminated Seat

Operation
Lever, Gear, Actuator Operated

About Triple Eccentric Butterfly Valve

FlowBiz Exports Pvt Ltd is a High Quality Triple-eccentric butterfly valves Manufacturer in Mumbai, Maharashtra, India. We are a leading manufacturer of Triple-eccentric butterfly valves in Mumbai and nearby areas.

Triple offset butterfly valves, or triple eccentric butterfly valves, have three offsets. Two of these apply to the location of the shaft in relation to the Centre line of the bore and the Centre line of the seat sealing surfaces. The third offset is the design in the axis of the seat cone angle. Since coming to market more than 50 years ago, triple offset valves have continued to evolve, as have their applications across various industries.

Application:

Triple-eccentric butterfly valves are industrial valves, which are designed to fully open or close a passage of the working medium flowing through a pipeline. They can also be used for flow-control purposes. However, a 100% tightness of the valve cannot be guaranteed in a long-term use for control purposes.

Product Details:

Brand - FlowBiz

Range - 50 NB to 350 NB

Body / Port Style - Wafer / Lug

Rating - 16 bar

Material - Cast Iron / Carbon Steel

Exceptional Sealing and Leakage Control

Designed for zero leakage and bubble-tight shutoff, Triple Eccentric Butterfly Valves utilize a unique disc geometry and precision-engineered seats. These features ensure reliable and safe operation in critical applications that demand utmost tightness, conforming to API 598 and EN 12266 testing standards, making them the go-to choice where leak prevention is paramount.

Versatile Materials and Customization

These valves offer extensive customization in disc and shaft materials, including stainless steel, duplex, Monel, and various alloys. Seat selections like metal seated or laminated options enhance media compatibility and long-term durability. Tailored body coatings such as epoxy paint and polyurethane provide added protection, enabling the valves to withstand corrosive or aggressive environments.

Advanced Operational Flexibility

Triple Eccentric Butterfly Valves provide multiple control options-manual levers, gear operators, or actuators (pneumatic, electric, hydraulic)-to suit varied automation and process requirements. Available in wafer, lug, and double flanged shapes with standard flanged connections, they simplify integration into both new and existing pipelines for broad application in refining, water treatment, and energy sectors.

FAQ's of Triple Eccentric Butterfly Valve:

Q: How does a triple eccentric butterfly valve achieve zero leakage performance?

A: The triple eccentric design offsets the disc and shaft in three ways, eliminating friction between the seat and disc during operation. This ensures a bubble-tight shutoff and zero leakage as required by API 598 and EN 12266 standards, making these valves ideal for critical isolation in various industrial applications.

Q: What industries typically use triple eccentric butterfly valves and why?

A: These valves are widely used in oil & gas, refinery, petrochemical, power plant, and water treatment projects due to their robust construction, resistance to corrosive media, precise shutoff, and adaptability to high-pressure and high-temperature environments.

Q: Where can the triple eccentric butterfly valve be installed within a plant?

A: Triple eccentric butterfly valves are suitable for installation in pipelines handling water, oil, gas, chemicals, or steam, in both onshore and offshore environments. With options like wafer, lug, or double flanged shapes, they can be integrated at main line isolations, process control points, or critical shutdown systems.

Q: What materials are available for the disc and shaft of the valve?

A: Disc materials include stainless steel, duplex, Monel, or custom alloys, while shafts can be fabricated from AISI 410, 17-4PH, or duplex stainless steel. This ensures chemical compatibility, mechanical strength, and optimal performance across a range of process media.

Q: How are triple eccentric butterfly valves operated and automated?

A: The valves can be operated manually with levers or gear operators, or automatically with pneumatic, electric, or hydraulic actuators. This flexibility allows users to select the most appropriate actuation method to fit their system's automation level and safety requirements.

Q: What is the process for selecting the correct valve configuration for an application?

A: Selection considerations include media type, pressure class (150/300/600, PN10/16/25/40), temperature (-29C to +425C), end connection standard (ASME B16.5, EN 1092), and installation requirements such as face-to-face dimensions or operational preferences. Consulting application data ensures optimal valve performance and longevity.

Q: What are the main benefits of using a triple eccentric butterfly valve over conventional designs?

A: Key benefits include zero leakage shutoff, high-pressure and temperature capability, reduced seat wear due to non-rubbing opening and closing, broad material selection for corrosive or hazardous media, and ease of maintenance, making them a cost-effective choice for critical isolation and control.

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