2 Inch Lever Operated Wafer Butterfly Valve

2 Inch Wafer Type Butterfly Valve

TWIV 2 inch wafer type butterfly valve is designed for reliable fluid isolation and flow control in industrial pipeline systems. Featuring a compact wafer body, resilient rubber sealing and a quarter-turn operating mechanism, this cast iron wafer butterfly valve offers convenient installation, flexible operation and efficient pipeline control.

Available with ductile iron, stainless steel and carbon steel material options, the valve is suitable for water, oil and gas applications under specified operating conditions. Manual lever operation provides quick opening and closing for industrial water systems, HVAC pipelines and general process applications.

Product Overview

The 2 inch wafer butterfly valve is a compact quarter-turn valve installed between two pipeline flanges. Its wafer-style body is positioned between mating flanges and secured by the pipeline bolting system.

A rubber sealing ring can be installed on the valve body or butterfly disc, depending on the selected design. The disc rotates around the valve stem to open, close or regulate the flow passage.

The frame-type disc structure provides high mechanical strength and a large circulation area, helping reduce flow resistance. Its compact construction makes this wafer butterfly valve suitable for installations where space and equipment weight are important considerations.

Technical Specifications

Material Specifications

TWIV wafer butterfly valves are available in different material combinations to meet various working conditions and fluid requirements.

Key Features of 2 Inch Wafer Butterfly Valve

• Compact Wafer Design: The compact body structure reduces installation space and overall valve weight.
• Flexible Rubber Sealing: The rubber sealing ring can be positioned on the valve body or butterfly disc, depending on the selected construction.
• High-Strength Disc Structure: The frame-type disc design provides high mechanical strength and a large circulation area.
• Low Flow Resistance: The optimized disc structure helps reduce resistance during fluid circulation.
• Double Eccentric Design: The double eccentric structure helps improve sealing performance during closing.
• Easy Manual Operation: The lever mechanism provides convenient quarter-turn operation.
• Multi-Standard Flange Compatibility: Available configurations for ANSI Class 150, PN10, PN16 and JIS 10K flange connections, subject to dimensional verification.
• Multiple Material Options: Ductile iron, stainless steel and carbon steel material options are available.
• Wide Application Range: Suitable for water, oil and gas services within the specified pressure and temperature limits.

Working Principle of Wafer Butterfly Valve

The wafer butterfly valve operates through a circular disc mounted inside the valve body. The disc is connected to the valve stem and controlled by a manual lever.

1. Open Position

When the lever rotates the stem, the disc turns approximately 90 degrees and becomes parallel to the direction of fluid flow. This allows the medium to pass through the valve.

2. Closed Position

When the lever rotates the disc back to the closed position, the disc presses against the rubber seat to block the flow passage and isolate the downstream pipeline.

3. Flow Regulation

The lever can hold the disc at different positions to adjust the flow rate where throttling service is permitted by the valve design.

Wafer Butterfly Valve Structure and Design

The main components of a wafer butterfly valve include the valve body, butterfly disc, valve stem and rubber seat. Each component plays an important role in ensuring reliable operation and sealing performance.

Valve Body

The wafer-style body is designed for installation between two pipe flanges. It provides structural support and houses the internal disc and sealing components.

Butterfly Disc

The disc controls the fluid passage through rotational movement. Its frame-type construction provides mechanical strength while maintaining an effective flow area.

Valve Stem

The stem connects the operating lever to the disc and transmits the torque required for opening and closing. SS410 and SS420 are available stem materials.

Rubber Seat

The resilient seat provides the sealing interface between the disc and valve body. NBR and EPDM are available for different media and operating conditions.

Applications of 2 Inch Wafer Type Butterfly Valve

The 2 inch wafer butterfly valve is suitable for industrial pipeline systems requiring compact installation, convenient manual operation and reliable fluid isolation. Its actual application depends on the selected body, disc and seat materials.

Water Supply Systems

Used in water distribution pipelines, pumping equipment, water circulation systems and general water supply installations.

HVAC and Cooling Water Systems

Installed in air conditioning pipelines, chilled water circulation, cooling water branches and building mechanical systems.

Wastewater Treatment

Used in suitable wastewater pipelines, treatment equipment and water transfer systems with compatible seat materials.

Oil and Gas Pipelines

Suitable for compatible oil and gas pipeline services where the pressure, temperature, sealing material and valve construction meet the operating requirements.

Industrial Processing Systems

Applied in industrial fluid transfer lines, process equipment connections and general manufacturing facilities.

Water Pumping Stations

Installed at suitable pump inlet and outlet pipeline sections for equipment isolation and routine maintenance.

Quality Inspection and Testing

Valve inspection and pressure testing should be performed according to the applicable product standards and project requirements. TWIV can provide relevant technical documentation and inspection information according to the actual order configuration.

• Valve body material inspection.
• Dimensional inspection.
• Seat sealing inspection.
• Shell pressure testing.
• Operating performance inspection.
• Product documentation according to order requirements.

Why Choose TWIV as Your Wafer Butterfly Valve Supplier?

Tianjin TWIV Fluid Valve supplies industrial butterfly valves for international distributors, engineering contractors and industrial end users.

• Multiple body, disc and sealing material options.
• Solutions for different pipeline connection standards.
• Manual lever-operated valve configurations.
• Technical support for product selection and material matching.
• OEM and customized manufacturing services according to project requirements.
• Export support for overseas industrial valve customers.

Frequently Asked Questions

1. What is a wafer type butterfly valve?

A wafer type butterfly valve is installed between two pipeline flanges. Its compact body design makes it suitable for applications requiring reduced installation space and convenient pipeline isolation.

2. What is the size of this butterfly valve?

This product is a 2 inch wafer butterfly valve, corresponding to nominal size DN50.

3. What materials are available for the valve body and disc?

Available options include ductile iron ASTM A395 Gr. 60-40-18, CF8, CF8M and WCB. The actual material combination can be selected according to project requirements.

4. What is the difference between NBR and EPDM seats?

NBR is commonly selected for compatible oil-containing applications, while EPDM is commonly used for water and other compatible media. The final selection should consider the fluid composition and temperature.

5. What is the maximum working pressure?

The supplied product information indicates a working pressure of up to 16 Bar (232 PSI). Please confirm the pressure rating against the actual valve design and test documentation.

6. Which flange standards are compatible with this valve?

The supplied specifications list ANSI Class 150, PN10, PN16 and JIS 10K configurations. Actual flange compatibility depends on the valve dimensions and drilling pattern.

7. What media can this wafer butterfly valve handle?

The specified media include water, oil and gas. Material and sealing compatibility must be checked before selecting the valve for a particular application.

Contact TWIV for 2 Inch Wafer Butterfly Valve Quotation

Looking for a reliable 2 inch wafer type butterfly valve manufacturer in China? Contact TWIV for product specifications, material selection, technical documentation and competitive quotations.

Company: Tianjin TWIV Fluid Valve

Website: www.twivfluidvalve.com

Email: lucy@twivfluidvalve.com

WhatsApp: +86 150 2213 4315