Welded triple offset butterfly valve

Size4″~48″ (DN100~DN1200 mm)

OperatedWorm Gear, Pneumatic actuator, Electric actuator

Conection endWeld Type

Conection standardPN10 / PN16 / PN25 / PN40

Working pressurePN16 / PN25 / PN40

Body materialWCB, Stainless steel, Duplex steel

Disc materialWCB, Stainless steel, Duplex steel

Seat materialSS430 + Graphite

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Product Details

A triple eccentric butterfly valve (also known as a TOV or triple offset valve) is a type of industrial valve known for its high performance and ability to handle demanding applications requiring tight sealing and reliable operation, especially in high-pressure and high-temperature environments. Its distinguishing feature is the triple offset design, which minimizes friction during operation, leading to reduced wear and tear, lower torque requirements, and enhanced sealing capabilities.

Technical Standard:
1.Design Standard: GB/T 12238/ API609/ ISO 5752/BS 5155/ EN 593
2.Face to face: GB/T 12221/ API 609.
3.Drive Connection: ISO5211.
4.Flange Standard: GB/T 9113/ ASME B16.5/ EN1092-1.
5.Test Standard: GB/T 13927/ API 598/ EN12266-1.

Product Advantages&Our Service:
1. Eccentricity:
Triple Offset:The valve's name refers to the three offsets incorporated into its design. These offsets are:
Shaft Offset: The shaft is offset from the center of the valve body.
Disc Offset: The disc is offset from the shaft.
Sealing Surface Offset: The sealing surface on the disc is angled, creating a conical shape that interacts with the seat.

2. Sealing:
2.1Metal-to-Metal Seal:
The triple offset design allows for a metal-to-metal seal, which is crucial for high-temperature and high-pressure applications.
2.2Tight Shut-off:
The minimal friction and precise sealing mechanism ensure a tight shut-off, preventing leakage.
2.3Bi-directional Sealing:
Some triple eccentric butterfly valves offer bi-directional sealing, allowing flow in either direction.

3. Applications:
3.1High-Pressure and High-Temperature Environments:
The valve's ability to handle extreme conditions makes it suitable for industries like oil and gas, petrochemicals, power generation, and water treatment.
3.2Demanding Processes:
It's often used in critical processes where precise control and reliability are essential.
3.3Replacing Gate and Ball Valves:
Triple eccentric butterfly valves are sometimes used as a more compact and efficient alternative to traditional gate and ball valves.

4. Advantages:
4.1Reduced Wear and Tear:
The minimized friction leads to less wear and tear on the valve components, extending its service life.
4.2Lower Torque Requirements:
The design allows for the use of smaller, more efficient actuators, reducing overall costs.
4.3High Reliability:
The robust design and metal-to-metal seal ensure reliable performance, even in harsh conditions.
4.4Tight Shut-off:
The valve provides a bubble-tight seal, preventing leaks and ensuring process integrity.
5.Cost:Triple eccentric butterfly valves can be more expensive than other types of butterfly valves.
6.Pressure Testing Report,3.1 Certificate of Material can be provided.

Face to face dimension:

DN	mm	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000	1200
DN	inch	4	5	6	8	10	12	14	16	18	20	24	28	32	36	40	48
L		190	200	210	230	250	270	290	310	330	350	390	430	470	510	550	630

The data is for reference only, please consult sale@valflovalve.com for details.

QUESTIONS

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