Triple Offset Butterfly Valve

LYV®️ is a China quality Triple offset butterfly valve manufacturer.This Industrial Triple Offset Butterfly Valve use high quality metal and graphite multi-layer sealing ring, which enables the valve to be used under high pressure and high temperature conditions.It can achieve reliable sealing and a long service life under difficult working conditions, making Triple Eccentric Butterfly Valve the preferred alternative to traditional valves in many industrial systems.

Send Inquiry

Product Introduction

LYV®️ Triple Offset Butterfly Valve is an industrial valve that achieves high performance through the offset design of three key positions. The core of this valve lies in the fact that the butterfly plate can completely separate from the valve seat instantaneously when opening, thus achieving zero mechanical friction throughout the opening and closing process. This design not only makes the operation more convenient, has extremely low wear, and significantly extends the service life, but also enables it to use a robust metal hard seal, reliably adapt to high-temperature and high-pressure working conditions, and achieve excellent bidirectional sealing effect. Therefore, this High-performance Triple Offset Butterfly Valve is particularly suitable for demanding scenarios such as petrochemicals, energy and power, and large heating systems, and is an ideal solution for ensuring the long-term stable operation of pipelines

LYV®️ Triple Offset Butterfly Valve strictly adheres to high-standard manufacturing processes and precisely controls the quality of castings to ensure that its overall performance is superior to similar products in the industry. This Triple Flanged Offset Butterfly Valve is equipped with multi-layer sealing rings made of high-quality metal and graphite, ensuring reliable operation under high-pressure and high-temperature conditions. We offer a variety of sealing options for different working conditions, such as polytetrafluoroethylene or metal-to-metal seals. In addition, its unique structural design (optional) achieves continuous zero leakage under bidirectional pressure, which is known as a bidirectional sealed butterfly valve. For more detailed information, please feel free to contact us now.

Specifications

Size Range:

NPS 2”-88”; DN50-DN2200

Nominal Pressure:

150LB-600LB; PN6-PN64

Temperature Range:

-69℃~825℃（depends on design and material）

End Connections:

Flange; Butt-weld; Wafer; Lug-wafer

Body Materials:

ASTM A216 WCB/WCC; ASTM A352 LCB/LCC; ASTM A351 CF8/CF8M/CF3/CF3M; ASTM A890 4A/5A/6A;

Disc Materials:

ASTM A216 WCB/WCC; ASTM A352 LCB/LCC; ASTM A351 CF8/CF8M/CF3/CF3M; ASTM A890 4A/5A/6A;

Sealing Material:

420/304/316+Graphite; PTFE; 304+STL; 316+STL

Seat Materials:

Integral; 304/316/STL overlayweld.

Stem Materials:

ASTM A182 F6A; ASTM A182 F304/F316/F304L/F316L; 17-4PH;

Design & Manufacture Standard:

API 609

Face-to-face Standard:

EN558-1

End Connection Standard:

ASME B16.4

Test & Inspection Standard:

API 598

Features

■ Zero leakage

■ Multi-layer sealing

■ Triple eccentric disc design

■ Bi-directional (optional)

■ Anti-blowout stem design

■ Metal-to-Metal available

■ Large diameter

What is Triple offset butterfly valve?

Triple offset butterfly valve gets its name from the three eccentricities on the sealing design. Unlike traditional butterfly valves, which only have a simple rotation disc to shut-off. Triple offset butterfly valve included three eccentricities to close valve linearly until tightly shut-off. The difference between the centerline butterfly valve and the triple offset butterfly valve lies in the method of achieving sealing. The centerline butterfly valve achieves sealing through the compression of the sealing surfaces, while the triple offset butterfly valve achieves sealing through contact between surfaces. This is what we call the difference between line sealing and face sealing. Therefore, the service life of the triple offset butterfly valve will be better than the traditional concentric butterfly valve.

How to choose between double offset butterfly valve and triple offset butterfly valve based on your needs?

●Choose double offset butterfly valve

If your working conditions are normal temperature, medium pressure, and not strongly corrosive (such as urban water supply, circulating water, ventilation systems), and you pursue good sealing performance and economy, it is a reliable and cost-effective choice.

●Choose a triple offset butterfly valve

When your working conditions involve high temperatures, high pressures, corrosive media (such as steam, oil and gas, chemical materials), or require absolute zero leakage, long service life and maintenance-free, the three-eccentric butterfly valve is a more professional and reliable choice, and its total cost of ownership is more advantageous in harsh working conditions.

Why choose LYV®️ valves:

We produce triple offset butterfly valve for over 30 years. The workshop covers 13000 square meters and own more than 50 advanced CNC machines. Our engineers & production team will make sure your order delivers with high-quality and fastest time. We also care about valve shipping. The valves will wrap by bubble pouches or paper to ensure the paint will not be damaged. We also fixed valve by plywood stick after we put valve into the box. The plywood case will be painted with necessary marking to make sure the valve will not be damaged during shipping.