Double Offset Butterfly Valve

Double Offset Butterfly Valve

Our Double Offset Butterfly Valve is designed for dependable shut-off and flow control in industrial pipeline systems requiring improved sealing performance, reduced seat wear and better service life compared with general-purpose centerline butterfly valves. With its double offset disc structure, the sealing surface contact is reduced during operation, helping lower friction and improve performance in more demanding service conditions.

This valve is widely used in water treatment, power generation, HVAC, petrochemical support systems, general process lines and industrial utility pipelines. It can be supplied in different body, disc, shaft and seat material combinations according to medium, pressure, temperature and project requirements.

Key Features

• Double offset structure for reduced seat friction and wear
• Improved sealing performance for more demanding applications
• Suitable for higher pressure and higher temperature service than general-purpose butterfly valves
• Available in multiple seat, disc and body material configurations
• Optional worm gear, pneumatic and electric actuation
• Suitable for water, oil, gas and general industrial media

Technical Specifications

Materials & Construction

The body can be supplied in carbon steel, stainless steel or other suitable materials according to pressure and corrosion requirements. Disc and shaft materials are selected based on service medium, temperature and project standard. Seat configurations may include PTFE, reinforced PTFE, resilient seat or project-based sealing structures depending on performance requirements.

The double offset design shifts the disc centerline away from the shaft and seat center, which helps reduce direct rubbing between the disc and sealing surface during opening and closing. This makes the valve more suitable for applications requiring better sealing performance, longer seat life and more stable operation.

Product Advantages

• Lower seat wear compared with general centerline butterfly valves
• Suitable for more demanding pressure and temperature conditions
• Improved sealing performance and service life
• Available in multiple connection types and actuation options
• Practical solution for industrial, utility and project applications

Applications

Double Offset Butterfly Valves are commonly used in the following systems and industries:

• Water treatment and distribution systems
• Cooling water and HVAC utility systems
• Power plant auxiliary pipelines
• Oil and gas support service lines
• General industrial process and utility systems
• Projects requiring improved sealing and longer service life

Available Options

• Wafer, lug and flanged body configurations
• PTFE, RPTFE, soft seat and project-based sealing options
• Worm gear manual operation
• Pneumatic actuator package
• Electric actuator package
• ANSI, DIN, BS, JIS and GB standard options

Standards & Testing

This valve can be manufactured according to international standards and project specifications. Available standards may include ANSI, DIN, BS, JIS and GB. Pressure testing, inspection reports, material certificates and other required documents can be provided according to order requirements.

Why Choose This Double Offset Butterfly Valve

This Double Offset Butterfly Valve is a practical choice for customers who need better sealing performance, reduced seat wear and more stable operation than standard soft seated centerline butterfly valves. It is especially suitable for industrial systems where pressure, temperature and service life requirements are higher, but a compact butterfly valve design is still preferred.

FAQ

1. What is a double offset butterfly valve used for?

It is commonly used for shut-off and flow control in water treatment, power, HVAC, oil and gas support systems and general industrial pipelines where improved sealing performance and service life are required.

2. What is the difference between a double offset butterfly valve and a centerline butterfly valve?

A double offset butterfly valve has an offset disc and shaft design that reduces friction between the disc and seat during operation. This helps improve sealing performance and reduce wear compared with a general centerline butterfly valve.

3. What seat materials are available?

Common options include PTFE, reinforced PTFE, soft seat designs and project-based sealing structures. The actual choice depends on the medium, temperature and pressure requirements.

4. Can this valve be supplied with pneumatic or electric actuators?

Yes. Worm gear, pneumatic and electric actuator configurations are available according to the control and automation requirements of the project.

5. What media is this valve suitable for?

It is generally suitable for water, oil, gas, steam and other industrial service media. Final material selection should be confirmed according to the actual working condition.

6. Can you provide customized materials, pressure classes or standards?

Yes. Customized materials, connection types, seat structures, pressure ratings and actuation packages are available according to project requirements.

Request a Quote

Looking for a reliable Double Offset Butterfly Valve supplier? Contact Raymon Valve with your size, pressure rating, medium, temperature, connection type and operation requirements for technical support and quotation.