Flanged Butterfly Valve
Quick Advantages
Why Choose Flanged Butterfly Valves
Designed for secure flange connection, good alignment, and reliable shut-off in larger pipe systems, municipal waterworks, and industrial pipeline projects.
Secure Flange Connection
Integral flange ends provide a direct and stable connection to the pipeline, helping improve installation strength and connection reliability.
Good Alignment
The flanged body structure helps maintain better valve positioning and pipeline alignment, especially in medium and large diameter systems.
Suitable for Larger Pipe Systems
Flanged butterfly valves are commonly selected for larger lines where stronger support, stable integration, and dependable shut-off are required.
Reliable for Infrastructure Projects
Widely used in municipal water, utility networks, and industrial piping systems where long-term service reliability is important.
Overview
What Is a Flanged Butterfly Valve?
A flanged butterfly valve is a quarter-turn valve designed with integral flange ends on both sides of the valve body. It is directly bolted to matching pipeline flanges, providing a secure connection and stable installation in municipal, waterworks, and industrial piping systems.
Compared with wafer type valves, flanged butterfly valves offer stronger end connection and better alignment support. They are commonly selected for medium and large diameter pipelines where installation stability, pipeline integration, and dependable shut-off are important.
Flanged butterfly valves can be supplied in different body materials, disc materials, seat options, and actuation methods to match pressure class, media conditions, operating environment, and project specifications.
Secure Flange Connection
Provides a direct and stable valve-to-pipeline connection for systems requiring stronger structural support.
Good Alignment
Helps maintain reliable valve positioning and alignment in medium and large diameter pipeline systems.
Suitable for Larger Systems
Commonly used in municipal water, utility infrastructure, and industrial piping where long-term stability is important.
Configurations
Available Wafer Butterfly Valve Configurations
We supply wafer butterfly valves in multiple seat materials, body types and actuation options to fit different service conditions.
Soft Seated Wafer Butterfly Valve
Suitable for water, air and mild industrial media with reliable bubble-tight sealing and economical installation.
Worm Gear Wafer Butterfly Valve
Recommended for medium and large sizes where smoother manual control and reduced operating effort are needed.
Pneumatic Wafer Butterfly Valve
Designed for automated shut-off and fast response in plant systems requiring reliable on-off valve control.
Electric Wafer Butterfly Valve
Ideal for remote operation, process control and applications that require stable motorized valve actuation.
Key Features
Designed for Reliable and Efficient Pipeline Service
Flanged butterfly valves are designed for secure flange connection, good alignment, and dependable shut-off performance in municipal water, utility infrastructure, and industrial piping systems. They are especially suitable for medium and large diameter lines where stable installation and long-term service reliability are important.
Secure Flange Connection
Integral flange ends provide a direct and stable connection to the pipeline for stronger installation support.
Good Alignment
The flanged body structure helps maintain reliable valve positioning and alignment in larger pipe systems.
Reliable Shut-Off Performance
Provides dependable isolation performance for municipal water, utility service, and industrial pipeline applications.
Suitable for Larger Systems
Commonly selected for medium and large diameter pipelines where secure connection and stable integration are required.
Flexible Material Options
Available in different body, disc, and seat materials to match pressure class, media condition, and service environment.
Multiple Operation Choices
Can be supplied with lever, worm gear, pneumatic, and electric actuation to fit different control requirements.
Technical Specifications
Technical Specifications
Standard ranges can be customized according to project requirements, media conditions, pressure class, and applicable flange standards.
Selection Overview
Flanged butterfly valves can be supplied in different materials, seat types, and operation methods to match municipal water, utility infrastructure, industrial piping, and larger diameter installation requirements.
- Standard Applications
Water treatment, HVAC, fire protection, pump stations, utility piping, and general industrial service.
- Available Configurations
Manual lever, worm gear, pneumatic actuator, and electric actuator.
- Custom Support
Materials, dimensions, flange drilling standards, and actuation packages can be matched to project needs.
Item
Specification
Valve Type
Flanged Butterfly Valve
Size Range
DN50–DN1200
Pressure Rating
PN10 / PN16 / Class 150
Body Material
Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
Disc Material
Ductile Iron, Stainless Steel, Aluminum Bronze
Seat Material
EPDM, NBR, PTFE
Stem Material
Stainless Steel
Operation
Lever, Worm Gear, Pneumatic, Electric
End Connection
Double Flanged
Applicable Media
Water, Air, HVAC Fluids, Mild Chemicals
Temperature Range
According to seat material and application condition
Standards
API, ANSI, DIN, BS, JIS
Custom sizes, materials, flange drilling standards, and actuation packages are available upon request. You can also replace the values above with your factory’s actual specification range.
Materials & Seat Options
Material Choices for Different Service Conditions
Different material combinations help improve sealing reliability, corrosion resistance, and service life for flanged butterfly valves used in municipal water, utility infrastructure, and industrial piping systems.
Seat Materials
Seat material is critical because it directly affects sealing performance, media compatibility, and allowable temperature range. Different seat options can be selected according to working conditions, pipeline requirements, and project standards.
EPDM Seat
Commonly used for water service, HVAC systems, and municipal utility applications requiring dependable sealing performance.
NBR Seat
Suitable for selected oil-related or utility media where compatible sealing material is required.
PTFE Seat
Provides improved chemical resistance for applications involving mild chemicals and selected corrosive media.
Customized Seat
Seat materials can be matched according to media type, temperature range, pressure level, and project-specific service conditions.
Body Materials
Body materials are selected according to pressure class, installation environment, flange standard, and service requirements. Different metal grades are available for municipal water, infrastructure, and industrial pipeline duty.
Disc Materials
Disc material affects durability, corrosion resistance, and long-term operating performance. Material selection can be matched to media conditions, pipeline size, and the overall service environment.
Applications
Typical Applications
Flanged butterfly valves are widely used in systems where secure flange connection, good alignment, and dependable long-term service are required, especially in municipal water, infrastructure, and larger industrial pipelines.
Municipal Water Systems
Flanged butterfly valves are commonly used in municipal water transmission and distribution pipelines because their integral flange ends provide secure connection, stable alignment, and reliable shut-off performance in larger pipe systems.
Water Treatment Plants
Used in clean water, filtration, and process water systems where dependable shut-off and stable flange connection are important.
Utility Infrastructure
Suitable for public utility and infrastructure projects requiring reliable valve performance and long-term installation stability.
Industrial Pipelines
Applied in plant utility lines and industrial piping systems where medium and large diameter connection reliability is required.
Pump Stations
Often selected where stronger installation support, good alignment, and dependable isolation are needed in larger line systems.
Application suitability depends on pressure, temperature, media compatibility, and flange standard requirements. Customized recommendations can be provided based on project conditions.
Actuation Options
Operation and Actuation Options
Flanged butterfly valves can be supplied with manual or automated operation to match different shut-off requirements, pipeline sizes, and infrastructure or industrial service conditions.
The right actuation method depends on valve size, operating frequency, installation position, torque requirement, and whether local or remote control is needed.
- Manual or Automated
Available for basic shut-off, frequent operation, or integrated control systems in municipal, utility, and industrial pipelines.
- Project-Based Selection
Actuation options can be matched according to valve size, torque requirement, service condition, and control method.
- Flexible Supply Scope
Complete valve and actuator assemblies can be supplied for easier installation, commissioning, and project integration.
Lever Operated
Best for smaller sizes and simple on-off service where quick manual operation and compact control are preferred.
Worm Gear Operated
Recommended for medium and larger sizes where smoother manual control, lower effort, and stable operation are required.
Pneumatic Actuated
Suitable for fast automated opening and closing in industrial or utility systems where responsive shut-off is important.
Electric Actuated
Ideal for remote operation, monitored systems, and installations requiring stable motorized control in larger pipeline networks.
Actuation options can be configured according to valve size, torque requirement, control method, and project specification.
Why Choose Raymon Valve
Custom Configuration
Body material, seat type, disc material, and actuation options can be matched to municipal water, infrastructure, and industrial pipeline requirements.
Standards Support
Selection support is available for common international flange standards and project specification requirements.
Technical Documentation
Basic technical files, drawings, and inspection-related documents can be provided according to project needs.
Fast Response
Quick follow-up for RFQ, product selection, material confirmation, and flanged butterfly valve application questions.
Featured Products
Featured Flanged Butterfly Valve Products
Explore selected flanged butterfly valve models for different sizes, service conditions, and operation requirements in municipal, utility, and industrial pipeline systems.
General Purpose Flanged Butterfly Valve
A practical shut-off solution for municipal water, HVAC systems, utility piping, and general industrial service with secure flange connection and stable installation.
Worm Gear Flanged Butterfly Valve
Suitable for medium and large sizes that require smoother manual operation, reliable torque control, and stable pipeline integration.
Pneumatic Flanged Butterfly Valve
Designed for fast automated opening and closing in utility and industrial systems requiring remote shut-off and responsive valve control.
Electric Flanged Butterfly Valve
Ideal for remote operation, monitored systems, and applications requiring stable motorized actuation in larger pipeline networks.
FAQ
Frequently Asked Questions
Common questions about flanged butterfly valve selection, configuration, and application.
What is the difference between wafer and flanged butterfly valves?
Wafer butterfly valves are clamped between two flanges and are generally more compact and lightweight. Flanged butterfly valves have integral flange ends, providing a more direct and secure pipeline connection that is often preferred in larger pipe systems and infrastructure applications.
Why choose a flanged butterfly valve?
Flanged butterfly valves are often selected because they provide secure flange connection, good alignment, and dependable shut-off performance in medium and large diameter systems.
What industries commonly use flanged butterfly valves?
They are widely used in municipal water systems, water treatment plants, utility infrastructure, pump stations, HVAC service, and general industrial piping.
What seat materials are available for flanged butterfly valves?
Common seat materials include EPDM, NBR, and PTFE. The correct seat option depends on media compatibility, temperature range, pressure condition, and shut-off requirements.
Can flanged butterfly valves be supplied with actuators?
Yes. Flanged butterfly valves can be supplied with lever, worm gear, pneumatic actuator, or electric actuator according to valve size, operating frequency, and control requirements.
How do I choose the right flanged butterfly valve?
You should confirm valve size, pressure rating, flange standard, media type, temperature range, seat material, and operation method to determine the most suitable configuration.