Worm Gear Wafer Butterfly Valve

LIANGFA provides professional butterfly valve solutions for global industrial pipeline systems. With advanced manufacturing processes and strict quality control, LIANGFA products are produced under GB/T19001-2016 / ISO9001:2015 certified quality management systems, ensuring stable performance and reliable operation.

Designed for water supply, HVAC, wastewater treatment, chemical processing, and industrial fluid control applications, the Worm Gear Wafer Butterfly Valve combines compact installation, reliable sealing, easy operation, and flexible material selection. It is an ideal solution for customers requiring efficient pipeline control with limited installation space.

Product Specifications

Design Features

Compact Wafer Structure

The wafer connection design reduces the overall valve length and weight compared with traditional flanged valves. The valve is installed between two pipeline flanges with through bolts, making it suitable for projects with limited installation space.

This compact structure helps reduce transportation costs and simplifies installation in pump rooms, equipment rooms, HVAC systems, and pipeline renovation projects.

Worm Gear Drive System

The worm gear actuator reduces operating force and provides stable valve positioning. The built-in self-locking mechanism prevents accidental movement caused by pressure fluctuation or water hammer.

For medium and large diameter pipelines, the worm gear design allows easier operation compared with lever handle butterfly valves and supports accurate 0°-90° opening adjustment.

Flexible Material Selection

LIANGFA provides different material combinations according to application requirements.

EPDM soft seals are commonly selected for water supply, HVAC, and sewage systems requiring reliable sealing performance. NBR sealing is suitable for oil-related applications, while F46 fluororubber and stainless steel configurations are available for weak corrosive chemical media.

Selection Guide for Different Working Conditions

Choose According to Medium

For clean water, municipal water supply, and circulating water systems, ductile iron body with EPDM sealing provides stable sealing performance and long service life.

For oil, gas, weak acid, weak alkali, and chemical applications, customers should select suitable sealing materials and corrosion-resistant components according to the actual medium characteristics.

Choose According to Temperature and Pressure

Soft seal butterfly valves are suitable for normal-temperature applications where zero leakage performance is required.

For high-temperature steam, heat transfer oil, and abrasive industrial media, triple eccentric metal sealing designs are recommended due to their higher temperature resistance and wear resistance.

Choose According to Installation Conditions

The wafer structure is especially suitable for projects requiring compact design and convenient maintenance. It is widely applied in water plants, HVAC rooms, industrial pipelines, and equipment connection systems.

Product Comparison

Compared with flanged butterfly valves and gate valves, LIANGFA wafer butterfly valves provide advantages in installation flexibility, operating efficiency, and maintenance convenience, making them suitable for modern industrial pipeline systems.

Flow Performance and Torque Data

Flow Capacity

The Worm Gear Wafer Butterfly Valve adopts an optimized disc design to reduce turbulence and pressure loss during operation.

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

Operating Torque

The worm gear actuator provides higher output torque with lower manual effort and maintains stable operation under pipeline pressure conditions.

The self-locking mechanism prevents unwanted disc movement and improves safety during long-term pipeline operation.

Product Drawing

Applications

Municipal Water Supply and Wastewater Treatment

The Worm Gear Wafer Butterfly Valve is widely used in water plants, sewage treatment facilities, drainage networks, and pump stations. The soft seal design provides reliable shut-off performance for long-term operation.

HVAC and Building Systems

The valve is suitable for chilled water, heating circulation, and building mechanical systems. The compact structure helps save installation space, while the worm gear actuator supports stable flow adjustment.

Chemical and Industrial Pipelines

With stainless steel components and suitable sealing materials, LIANGFA valves can be applied in weak acid, weak alkali, oil, gas, and industrial fluid transportation systems.

Power and Energy Industry

Hard seal versions are suitable for high-temperature circulation water, steam systems, and industrial process pipelines requiring higher resistance against heat and wear.

Why Choose LIANGFA

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, appearance inspection, and operation checking before shipment.

Customized Solutions

LIANGFA provides customized valve solutions according to pipeline pressure, medium characteristics, temperature requirements, connection standards, and material selection.

Technical support is available to help customers select the most suitable configuration for different working conditions.

Warranty and After-Sales Service

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

During the warranty period, customers can receive technical support and replacement solutions for manufacturing-related quality issues.

LIANGFA also provides long-term spare parts supply, including valve seats, sealing components, discs, and actuator parts, helping customers reduce maintenance costs and improve equipment availability.

Typical Project Example

In a municipal water supply renovation project, LIANGFA supplied D371X-16Q valves with ductile iron bodies, EPDM sealing seats, and worm gear operation systems.

The compact wafer structure reduced installation difficulties in limited pipeline spaces, while the self-locking actuator improved operation safety during daily maintenance.

The solution provided stable sealing performance and reliable flow control for continuous municipal water system operation.

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 worm gear operation instead of a lever handle?

For medium and large diameter valves, worm gear operation requires less manual force and provides better opening control. The self-locking function also prevents accidental valve movement caused by pressure changes.

What industries can use this valve?

The valve is commonly used in municipal water supply, wastewater treatment, HVAC systems, chemical pipelines, power plants, and general industrial fluid control applications.

Can LIANGFA provide customized valves?

Yes. LIANGFA can customize valve materials, sealing solutions, pressure ratings, and connection standards according to different project requirements.