Pnuematic triple offset butterfly valve

Size2″~48″ (DN50~DN1200 mm)

OperatedWorm Gear, Pneumatic actuator, Electric actuator

Conection endDouble Flange Type

Conection standardPN10 / PN16 / PN25 / PN40 / PN63/ 150LB / 300LB / 600LB

Working pressurePN16 / PN25 / PN40 / PN63

Body materialWCB, Stainless steel, Duplex steel, Aluminum Bronze

Disc materialWCB, Stainless steel, Duplex steel, Aluminum Bronze

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	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000	1200
DN	inch	2	2-1/2	3	4	5	6	8	10	12	14	16	18	20	24	28	32	36	40	48
L(PN16/25)		108	112	114	127	140	140	152	165	178	190	216	222	229	267	292	318	330	410	470
L(PN40)		150	112	114	127	140	140	152	165	178	190	216	222	229	267	292	318	330	410	470
L(PN63)		150	/	180	190	200	210	230	250	270	290	310	330	350	390
L(150LB)		108	112	114	127	140	140	152	165	178	190	216	222	229	267	292	318	330	410	470
L(300LB)		108	112	114	127	140	140	230	250	270	290	310	330	350	390	430	470	510	550	630
L(600LB)		150	/	180	190	200	210	230	250	270	290	310	330	350	390

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

QUESTIONS

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