Triple Eccentric Butterfly Valve

Product Introduction

The core of LYV® Triple Eccentric Butterfly Valve is its way of sealing. As a typical Industrial Triple Eccentric Butterfly Valve, its design core lies in the triple geometric eccentricity, which enables the butterfly plate to completely disengage from the valve seat when opening, achieving zero-friction operation. When closed, it forms a torque seal that gets tighter and tighter as it is closed. This principle innovation makes it a truly High Performance Eccentric Butterfly Valve, which not only has extremely reliable sealing but also can adapt to a wide temperature range from deep cold to high temperature. In addition, our product line includes Large Diameter Triple Eccentric Butterfly Valve, which can meet the strict requirements of various main pipelines and high-flow systems. With their advantages of long service life and low maintenance, they provide long-lasting and reliable safety guarantees for critical processes.

Specifications

Features

■  Zero leakage ensures absolute isolation of the medium.

■  The multi-layer sealing structure enhances the long-term sealing reliability.

■  The triple eccentric design structure achieves zero friction during opening and closing.

■  Bidirectional sealing (optional) offers a bidirectional pressure-bearing sealing option, meeting the strict requirements of bidirectional isolation of pipelines.

■  The explosion-proof rod design enhances the safety structure of the valve stem to ensure operational safety.

■  Metal-to-metal seal: It adopts a hard alloy sealing pair, which can withstand high temperatures, high pressures and abrasive media.

■  The large diameter ensures consistent and reliable performance in high-flow pipelines.

What is a triple eccentric design?

The revolutionary performance of the Triple Eccentric Butterfly Valve stems from its precise three-offset geometric design. This technology achieves zero friction throughout the process by means of the triple spatial offset of the valve stem, butterfly plate and sealing surface, enabling the butterfly plate to completely disengage from the valve seat at the moment of opening. When closed, the unique conical sealing surface creates a "tighter as it closes" wedge-shaped effect, forming a powerful metal-to-metal torque seal. It is precisely this fundamental principle that enables the valve to adopt all-metal hard seals, thereby achieving bidirectional zero leakage, an extremely long service life, and outstanding adaptability to extreme high-temperature and high-pressure working conditions, making it an ideal choice for demanding industrial applications.

What's the Typical application scenarios of this Triple Eccentric Butterfly Valve?

Thanks to its outstanding temperature and pressure resistance as well as sealing performance, this High Performance Eccentric Butterfly Valve is specially designed for the following critical and demanding industrial scenarios:

●Energy and power industry: Applicable to high-temperature and high-pressure pipelines such as main steam, water supply systems, and flue gas desulfurization in power stations.

●Petrochemical industry: Widely used in various oil and gas transportation pipelines, reaction feed in refining and chemical facilities, control of high-temperature oil products and corrosive media.

●Large-scale industrial systems: It is particularly suitable as a large-diameter triple eccentric butterfly valve, used in the main heating pipes, air main pipes and seawater pipelines of industries such as metallurgy, papermaking and shipping.

It is the preferred valve type for all pipelines that have mandatory requirements for fire prevention, zero leakage and long service life.