Butterfly Valve by Intechvalve – efficient flow control and isolation

What Is a Butterfly Valve? – Intechvalve explains

At Intechvalve, we define a butterfly valve as a quarter turn rotational motion valve that uses a circular disc mounted on a rotating shaft to regulate, isolate, or throttle flow in a pipeline. The disc is positioned in the center of the pipe and rotates 90 degrees from fully open to fully closed position. When the disc is parallel to the flow direction, the valve is fully open. When perpendicular, it is fully closed. The name butterfly comes from the wing like action of the disc. Every Intechvalve butterfly valve is engineered for efficient flow control, compact design, and reliable sealing across a wide range of industrial applications.

Key Features and Value Propositions of Intechvalve Butterfly Valves

Quarter Turn Operation: I design Intechvalve butterfly valves for quick 90 degree operation, allowing rapid opening and closing with minimal actuator torque requirements.

Compact and Lightweight: Compared to gate or globe valves of similar size, Intechvalve butterfly valves are significantly lighter and shorter, reducing installation space and support requirements.

Low Pressure Drop: The streamlined disc design of Intechvalve butterfly valves creates minimal flow resistance when fully open, resulting in low pressure drop across the valve.

Bi directional Sealing Capability: Many Intechvalve butterfly valve designs provide effective sealing in both flow directions, offering installation flexibility.

Cost Effective Solution: For large diameter applications, Intechvalve butterfly valves offer a more economical solution compared to gate or globe valves, without compromising performance.

Versatile Material Options: We manufacture Intechvalve butterfly valves with various body materials, disc materials, and seat elastomers to suit different fluids and operating conditions.

Wide Industry Use: From water treatment, HVAC systems, fire protection, food and beverage processing, chemical plants, oil and gas, to power generation, Intechvalve butterfly valves provide reliable flow control.

How It Works – Principle of Operation by Intechvalve

An Intechvalve butterfly valve operates using a circular disc mounted on a rotating shaft. When the handle, gear, or actuator turns the shaft 90 degrees, the disc rotates from fully open position, where it is parallel to the flow, to fully closed position, where it is perpendicular and seals against an elastomeric or metal seat. In intermediate positions, the disc partially obstructs the flow, providing throttling capability. The quarter turn design allows for quick operation, while the streamlined disc ensures smooth flow characteristics and minimal pressure drop when fully open.

Typical Technical Specifications – Intechvalve Butterfly Valves

Common Types of Butterfly Valves manufactured by Intechvalve

• Wafer Type Butterfly Valve — Designed to fit between two pipeline flanges, held in place by flange bolts. Intechvalve wafer butterfly valves are the most economical and widely used design for general service.
• Lug Type Butterfly Valve — Features threaded lugs that allow bolt installation, enabling dead end service and isolation of downstream piping. Intechvalve lug butterfly valves are ideal for end of line applications.
• Flanged Butterfly Valve — Has integral flanges that bolt directly to pipeline flanges. Intechvalve flanged butterfly valves are used in high pressure and critical applications.
• Double Flanged Butterfly Valve — Flanges on both ends for robust installation. Available from Intechvalve for large diameter and high pressure applications.
• Concentric (Resilient Seated) Butterfly Valve — Most common design with elastomeric seat providing bubble tight shut off. Intechvalve concentric butterfly valves are widely used in water and HVAC applications.
• Double Eccentric (High Performance) Butterfly Valve — Disc offset from centerline, reducing seat wear and operating torque. Intechvalve double eccentric valves are used for higher pressure and temperature services.
• Triple Eccentric Butterfly Valve — Third offset creates a cam action that lifts disc from seat, eliminating friction and providing metal to metal sealing. Intechvalve triple eccentric valves are used for severe service, high temperature, and high pressure applications.

Seat and Seal Options from Intechvalve

• EPDM Seat — Excellent for water, wastewater, and mild chemicals. Intechvalve EPDM seated butterfly valves offer good temperature resistance up to 120 degrees Celsius.
• NBR (Buna N) Seat — Good resistance to oil, petroleum products, and hydrocarbons. Available from Intechvalve for oil and gas applications.
• Viton Seat — Superior chemical resistance and high temperature capability up to 200 degrees Celsius. Intechvalve Viton seated valves handle aggressive chemicals.
• PTFE Seat — Exceptional chemical resistance for corrosive services. Intechvalve PTFE seated butterfly valves are used in chemical and pharmaceutical industries.
• Metal Seat — For high temperature applications up to 600 degrees Celsius and abrasive services. Intechvalve metal seated butterfly valves offer extended service life.

Use Cases for Intechvalve Butterfly Valves

• Water treatment and distribution – Intechvalve butterfly valves are ideal for large diameter water lines due to their compact size and cost effectiveness.
• HVAC systems – Our butterfly valves control chilled water, hot water, and condenser water flow in heating and cooling systems.
• Fire protection systems – Intechvalve butterfly valves provide reliable isolation in fire water networks.
• Chemical processing – Lined and PTFE seated Intechvalve butterfly valves handle corrosive chemicals safely.
• Food and beverage industry – Sanitary design Intechvalve butterfly valves meet hygiene requirements.
• Oil and gas applications – High performance double and triple eccentric Intechvalve butterfly valves handle hydrocarbons and gases.
• Power generation – Cooling water systems, condensate lines, and auxiliary services use Intechvalve butterfly valves.
• Marine and offshore – Lightweight and corrosion resistant Intechvalve butterfly valves are ideal for shipboard systems.

At Intechvalve, we specialize in efficient flow control. Our butterfly valves are engineered to provide reliable performance, quick operation, and long service life across a wide range of industrial applications.