Butterfly Valve Manufacturers in USA

A butterfly valve is a quarter-turn rotational motion valve used to stop, regulate, or start the flow of a fluid. It consists of a circular disc positioned in the centre of a pipe. Because of its compact, lightweight design and lower cost compared to other valve types, SVR Global butterfly valve is among the most common choices for managing large volumes of liquids and gases in industrial systems. 

How does a Butterfly Valve Work? 

The operation is straightforward and fast. The disc is connected to a stem that runs through the valve body. When the handle (or an actuator) is turned 90 degrees, the disc rotates either parallel or perpendicular to the flow. In the open position, the disc allows fluid to pass around it with minimal pressure loss. In the closed position, the disc is rotated so that it blocks the entire passageway and seals against the valve seat to stop the flow completely. 

Materials and Construction :

The choice of material depends on the temperature and chemical nature of the fluid: 

• Ductile Iron and Cast Iron: Economical choices for water and HVAC systems. 

• Stainless Steel (CF8, CF8M): Used for food processing and corrosive environments. 

• Carbon Steel (WCB): High-strength material for industrial utility lines. 

• Seat Materials: EPDM, Viton, or PTFE for soft-seated valves; Metal-to-metal seats for high-temperature service. 

Types of Butterfly Valve :

• Wafer Butterfly Valve: It is designed to fit between two pipe flanges using long bolts. 

• Lug Butterfly Valve: It features threaded inserts (lugs) that allow it to be bolted directly to each flange. 

• Concentric Butterfly Valve: In this type of valve, the stem is centered in the disc. 

• High-Performance Butterfly Valve (Double/Triple Offset): It is used for high-pressure and bubble-tight shut-off in critical applications. 

Industry Applications :

Butterfly Valve is versatile and is used in sectors such as: 

• Water Treatment: Controlling flow in municipal supply and filtration. 

• Chemical Processing: Managing various fluids and gasses. 

• Marine & Shipbuilding: Space saving solutions for ballast and cooling systems. 

• Food and Beverage: Sanitary versions used for liquid processing. 

Standards and Technical Specifications :

SVR Global Butterfly Valve meets global engineering benchmarks: 

• Size Range: DN40 to DN1200. 

• Pressure Ratings: PN10, PN16, Class 150/300. 

• Design Standards: API 609, ASME B16.34, and EN 593. 

Inspection and Testing :

Every butterfly valve undergoes rigorous quality control to ensure reliability: 

• Pressure Testing: Shell and seat tests per API 598. 

• Torque Testing: Ensuring the valve opens and closes smoothly under pressure. 

• Dimensional Verification: Confirming the valve meets exact installation specs. 

Why Choose SVR Global Butterfly Valve? 

SVR Global designs a butterfly valve that is known for its long service life and ease of automation. By utilizing high-resilience discs and seating materials, our valves provide a consistent seal and require minimal maintenance. SVR Global’s streamlined designs are ideal for projects with space constraints where weight and efficiency are the primary concerns.