Worm Gear Flanged Butterfly Valve

Designed for medium and large pipeline systems, the Worm Gear Flanged Butterfly Valve combines a reinforced flange connection with a worm gear transmission system. It provides reliable shut-off control, smooth operation, and long-term service performance for projects requiring higher operating torque and stronger pipeline support.

Product Specifications

Product Drawing

Structural Design

Reinforced Flange Connection

The flanged connection provides strong mechanical support between the valve and pipeline system. Compared with wafer-type valves, the flange structure offers better positioning accuracy and connection stability, especially for large diameter pipelines.

This design is suitable for fixed industrial pipeline systems where reliable installation and long-term operation are important requirements.

Worm Gear Transmission

The worm gear mechanism increases output torque and reduces manual operating effort, making it suitable for medium and large valve sizes.

The self-locking function helps maintain valve position after adjustment and prevents unexpected movement caused by vibration, pressure fluctuation, or water hammer.

Sealing Configuration

LIANGFA provides different sealing options according to operating conditions.

EPDM sealing is commonly used for water supply, HVAC, and wastewater systems. NBR and PTFE sealing solutions are available for oil, chemical, and industrial applications requiring different temperature and corrosion resistance.

Large Pipeline Applications

Stable Flow Control

The Worm Gear Flanged Butterfly Valve is designed for applications requiring reliable isolation and controlled flow adjustment.

The worm gear actuator provides smoother operation than direct manual control, especially when used on large diameter pipelines requiring higher operating force.

Long-Term Operation

The combination of flange connection, durable materials, and reliable sealing structure helps improve service life in continuous operation environments.

It is widely used in municipal infrastructure, industrial facilities, and energy projects where stable pipeline performance is required.

Installation and Maintenance

Easy Inspection

The flanged structure allows convenient installation, removal, and inspection during pipeline maintenance.

For large fixed pipeline systems, this design helps reduce maintenance time and improves equipment availability.

Flexible Configuration

LIANGFA can provide different materials, sealing options, pressure ratings, and flange standards according to project requirements.

This allows customers to select suitable valve configurations based on medium, temperature, pressure, and working environment.

Performance Data

Flow Capacity

The Worm Gear Flanged Butterfly Valve adopts an optimized disc design to reduce turbulence and maintain efficient fluid flow.

Actual flow performance may vary depending on valve size, pressure rating, medium characteristics, and installation conditions.

Operating Torque

The worm gear actuator provides stable torque output and easier operation for large valves.

Actual torque requirements depend on differential pressure, sealing material, temperature, and operating frequency.

Product Testing

LIANGFA performs strict quality inspections before shipment to ensure reliable performance of every Worm Gear Flanged Butterfly Valve.

Each valve is tested through:

Pressure Test: Verify valve body strength and sealing performance under rated pressure conditions.

Leakage Test: Check sealing reliability to reduce leakage risks during long-term operation.

Torque Test: Ensure the worm gear actuator operates smoothly with stable output torque.

Material Inspection: Confirm valve body, sealing components, and key parts meet required specifications.

With GB/T19001-2016 / ISO9001:2015 certified quality management, LIANGFA ensures consistent valve quality for industrial applications.

Application Industries

Water Treatment Projects

The Worm Gear Flanged Butterfly Valve is widely used in municipal water plants, wastewater treatment facilities, and pumping stations.

The flange connection provides reliable installation support, while the worm gear system allows efficient control of large pipeline flow.

Industrial Systems

For manufacturing plants, chemical facilities, and process pipelines, LIANGFA provides suitable material and sealing solutions for different industrial fluids.

Energy Projects

The valve is suitable for cooling water systems, power plants, and energy infrastructure requiring stable pipeline control under continuous operation.

Product Comparison

LIANGFA Quality Assurance

Certified Manufacturing

LIANGFA follows strict manufacturing procedures based on GB/T19001-2016 / ISO9001:2015 quality management standards.

Each valve undergoes inspection procedures including pressure testing, sealing testing, material verification, and operation checking before shipment.

Warranty and Service

LIANGFA provides a 12-month warranty from the shipment date.

Customers receive technical support, installation guidance, troubleshooting assistance, and long-term spare parts supply including sealing components, discs, and actuator parts.

Typical Project Example

In a municipal water supply renovation project, LIANGFA supplied D341X-16Q valves with ductile iron bodies, EPDM sealing seats, and worm gear operation systems.

The flanged connection design improved pipeline installation stability, while the worm gear mechanism reduced operating difficulty during daily maintenance and flow adjustment.

The solution helped improve reliability and extend service life in the upgraded municipal water system.

Factory Tour

Product Packing & Shipping

We provide delivery services covering sea freight and land transport, with cargo available for shipment to all major ports worldwide.

Frequently Asked Questions

Why choose a worm gear flanged butterfly valve for large pipelines?

The worm gear system provides higher output torque and easier operation for large valve sizes, while the flange connection ensures stable pipeline installation.

What industries use this valve?

It is commonly applied in water treatment, wastewater, HVAC, chemical processing, power generation, and industrial pipeline systems.

Can LIANGFA customize valve solutions?

Yes. LIANGFA can customize valve materials, sealing options, flange standards, pressure ratings, and actuator configurations according to project requirements.