ISO/GB/ANSI/JIS Duplex Stainless Steel LNG Double Flange Butterfly Valve Factory Direct Sale

Product Description

Triple offset butterfly valves are a type of valve that offer superior performance over traditional butterfly valves. They are commonly used in industries such as oil and gas, chemical, and power generation due to their ability to handle high pressures and temperatures. In this article, we will explore the features and benefits of triple offset butterfly valves, as well as their applications and maintenance.

 

Triple offset butterfly valves offer several features and benefits that make them high-performance solutions for industrial applications. These include:

1. Zero Leakage: The triple offset design allows for a tight seal that prevents leakage, even in high-pressure and high-temperature applications. This reduces the risk of product loss, environmental damage, and safety hazards.
2. High Performance: Triple offset butterfly valves can handle high pressures and temperatures. Making them ideal for applications in industries such as oil and gas, chemical, and power generation.
3. Low Torque: The triple offset butterfly valve design requires less torque to operate, reducing the operation and maintenance cost.
4. Long Lifespan: Triple offset butterfly valves are highly durable. And resistant to wear and tear, resulting in a longer lifespan and reduced replacement costs.

Triple-Offset valves use three offsets to create a high performance and low friction seal.

The fundamental feature of the valve design is the three offsets, these are highlighted in the 3D figure below:

Offset 1 - an offset between the shaft centreline and seat

Offset 2 - an offset between the centreline of the pipeline and the valve shaft

The valve shaft is offset from the centre line in both the X and Y axis, which makes up the first two offsets.

Offset 3 - An angular offset of the seating faces creating the conical geometry of the seat faces

The third offset consists of a conical angle on the sealing faces meaning the sealing faces only come into contact at the point of sealing.

Bubble-Tight Sealing

The triple offset design provides bubble-tight sealing, ensuring a complete and tight closure of the valve. 

This is particularly advantageous in applications where leakage prevention is critical, such as in high-pressure or hazardous fluid environments.

Minimal Wear and Tear

The continuous contact-less rotation and seating characteristic of the triple offset design result in minimal wear and tear. 

This leads to an extended service life and reduced maintenance requirements, making it a cost-effective choice in the long run.

High-Temperature Resistance

Triple offset butterfly valves are suitable for high-temperature applications due to the use of materials that can withstand elevated temperatures. 

This makes them ideal for industries such as petrochemical, refining, and power generation.

Size: 3"(DN80)-96"(DN2400) 
Pressure: 150LB-600LB / PN16- PN100 
Material: WCB, WCC, WC6, WC9, C5, C12, C12A, LCB, LCC, LC1, LC3, CF8, CF8M, CF3, CF3M, CF8C 
Medium: Water, oil, gas, steam 


Standards: 
1) Design and manufacture:  MSS SP-68 
2) Face to face/end to end: ANSI B16.10 
3) Flange dimensions: ANSI B16.5A 
4) Butt welding dimensions: ANSI B16.25 
5) Pressure temperature rating: ANSI B16.34