Worm Gear Wafer Butterfly Valve

Worm Gear Wafer Butterfly Valve is designed for dependable shut-off and flow regulation in water treatment, HVAC, municipal pipelines, and general industrial service systems. Combining a compact wafer body design with worm gear operation, this valve provides stable installation, smoother manual control, and lower operating effort for medium and large diameter pipeline applications.

Our worm gear wafer butterfly valves can be supplied in different body, disc, stem, and seat material combinations according to pressure rating, service medium, temperature range, and project standards. The worm gear operator is especially suitable for applications requiring more controlled opening and closing, improved operating convenience, and reliable position adjustment.

Key Features

• Compact wafer body design for space-saving installation
• Worm gear operation for smoother and lower-torque manual control
• Suitable for medium and large diameter pipeline systems
• Reliable shut-off and flow regulation performance
• Multiple body, disc, and seat material options available
• Suitable for water, air, and general industrial service media

Technical Specifications

Valve Type: Worm Gear Wafer Butterfly Valve

Size Range: DN50–DN1200 (larger sizes available on request)

Pressure Rating: PN10 / PN16 / Class 150

Connection Type: Wafer Type

Body Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel

Disc Materials: Ductile Iron, Stainless Steel 304, Stainless Steel 316, Bronze

Seat Materials: EPDM, NBR, PTFE, Viton (depending on model)

Stem Materials: Carbon Steel, Stainless Steel

Operation: Worm Gear Operation

Applicable Media: Water, Air, General Service Fluids, Mildly Corrosive Media

Temperature Range: Depends on seat material and working condition

Applicable Standards: ANSI, DIN, JIS, BS, GB

Materials & Construction

The worm gear wafer butterfly valve body is commonly available in cast iron, ductile iron, carbon steel, and stainless steel to match different project requirements and operating conditions. Disc materials are selected according to corrosion resistance, pressure rating, and service medium. Seat options such as EPDM, NBR, PTFE, and Viton can be selected based on sealing requirements, temperature range, and fluid compatibility.

The wafer body design makes this valve suitable for compact pipeline layouts where installation space is limited. Compared with simple lever operation, the worm gear mechanism provides better control, reduced operating effort, and more stable positioning, especially in larger sizes or higher torque applications.

Product Advantages

• Compact wafer structure for economical and space-saving installation
• Worm gear operator for easier and more precise manual control
• Suitable for larger sizes where lever operation is less practical
• Flexible body, disc, and seat material selection
• Reliable sealing performance for water and general service applications

Applications

• Water treatment and water distribution systems
• HVAC and cooling water pipelines
• Municipal water supply and drainage projects
• Industrial utility and general service pipelines
• Power, infrastructure, and plant engineering projects
• Clean or mildly corrosive media applications

Available Options

• EPDM, NBR, PTFE, Viton, and project-based seat options
• Ductile iron, carbon steel, and stainless steel body materials
• Corrosion-resistant disc materials
• ANSI, DIN, JIS, BS, and GB design options
• Project-based size, pressure, and material customization

Standards & Testing

Our worm gear wafer butterfly valve can be manufactured according to international project standards and customer requirements. Available standards may include ANSI, DIN, JIS, BS, and GB. Testing reports, inspection documents, and material certificates can be provided according to order specifications and project documentation requirements.

Why Choose This Worm Gear Wafer Butterfly Valve

This worm gear wafer butterfly valve is a practical solution for customers who need compact installation, dependable shut-off, and easier manual operation in medium and large diameter pipelines. It is especially suitable for projects where installation space, operating convenience, and long-term service reliability are important.

FAQ

What is a worm gear wafer butterfly valve used for?

A worm gear wafer butterfly valve is commonly used for shut-off and flow control in water treatment, HVAC systems, municipal pipelines, and general industrial service lines where compact installation and controlled manual operation are required.

What is the advantage of worm gear operation on a wafer butterfly valve?

Worm gear operation provides smoother opening and closing, lower manual operating effort, and better positioning control compared with simple lever operation. It is especially useful for larger valve sizes or applications with higher operating torque.

What is the difference between a worm gear wafer butterfly valve and a flanged butterfly valve?

A worm gear wafer butterfly valve uses a compact wafer body that is installed between flanges, while a flanged butterfly valve has integral flanged ends for a more robust connection method. Wafer types are generally more compact and economical, while flanged types are often preferred for certain pipeline standards or installation preferences.

What seat materials are available?

Common seat options include EPDM, NBR, PTFE, and Viton. Final seat material selection depends on the medium, temperature, pressure, and application requirements.

What media is this valve suitable for?

It is generally suitable for water, air, general service fluids, and mildly corrosive media. Final material selection should be confirmed according to the actual working condition.

Can you provide customized sizes and materials?

Yes. Customized sizes, body materials, disc materials, seat types, and applicable standards can be supplied according to project requirements.

Request a Quote

Looking for a reliable worm gear wafer butterfly valve manufacturer or supplier? Contact Raymon Valve with your size, pressure rating, medium, temperature, standard, and material requirements for technical support and quotation.