Butterfly Valves (BV)
Control Flow (On, Off, Regulate)
Gases, Air, Steam, and Liquid
Industry-Leading AWWA Butterfly Valves for Flow Control
Butterfly valves are widely used in water, wastewater, industrial, and process applications for both shutoff and flow control. Primary Flow Signal supplies AWWA butterfly valves that meet the requirements of C504 and C516 standards, ensuring reliable performance in demanding environments.
When paired with a PFS Venturi, they eliminate the need for separate components and provide single-source responsibility for flow control systems. Their versatility and proven performance make them a trusted solution for applications such as:
- Filter effluent and backwash systems
- Clean water and wastewater treatment processes
- Industrial gases, air, steam, and liquid service
Key Advantages of a Butterfly Valve:
- Design Flexibility: Available with manual, electric, hydraulic, or pneumatic actuators to suit diverse operating environments.
- Integrated Flow Control: Can be directly coupled to a PFS Venturi, turning the Venturi into a Rate of Flow Controller (ROFC).
- Material Versatility: Manufactured in materials compatible with specific process conditions.
- Proven Reliability: Robust design meets industry standards for long service life and consistent performance.
- Operational Efficiency: When used with a Venturi and actuator, the system automatically adjusts to maintain flow rate, reducing operator intervention.
Most often, PFS supplies butterfly valves that are direct coupled to the outlet of a Venturi. In this configuration, the Venturi measures flow rate and communicates with a controller, which directs the actuator to open or close the valve to regulate flow precisely.
Typical applications for butterfly valves include filter effluent and backwash systems in municipal water treatment, air and gas flow control in industrial processes, and liquid service in various plant operations.
Butterfly Valve Specifications
Butterfly Valve Materials
Typical material selections for standard applications:
- The butterfly valve body is typically cast iron with a ductile iron disk, rubber seats and stainless steel shafts.
Other options for material selection:
- Other materials such as stainless steel bodies and disks are available.
Butterfly Valve Certifications
PFS is a contributor to various international standards committees, fully supporting our staff’s memberships to these commissions.
Individual products follow relevant industry regulations, including requirements specific to the oil and gas, water/wastewater, and power generation industries.
PFS maintains the following certifications, standards & compliances:
- ISO 9001
- AGA
- ASME S & U
- API
- ANSI
- European Pressure Equipment Directive (PED)
Applications
Wastewater & Water Treatment
Butterfly valves are commonly used in filter effluent and backwash systems, providing reliable shutoff and flow control in municipal and industrial water treatment processes. They help maintain precise flow regulation for consistent system performance.
Industrial
In industrial environments, butterfly valves are applied for controlling the flow of air, steam, and various process liquids. Their versatility and compact design make them well-suited for systems requiring frequent operation and dependable performance.
Power Generation
Butterfly valves play a critical role in power generation systems, where they are used to control steam, cooling water, and chemical feed lines. Their ability to provide tight shutoff and responsive flow control makes them ideal for high-demand applications in power plants.
Gas & Air Systems
Butterfly valves are used for regulating air and gas flow in a range of applications, including ventilation, process control, and other industrial systems where accurate and efficient flow regulation is essential.
Industry-Leading Butterfly Valve Manufacturer Since 1983
Four Decades of Proven Expertise
For over 40 years, Primary Flow Signal has delivered butterfly valves trusted in municipal, industrial, and process applications. Built to AWWA standards, our valves provide long service life, dependable shutoff, and precise flow control backed by in-house design, fabrication, and testing.
Custom Engineered Solutions & Support
PFS valves are tailored to your system; whether paired with a Venturi for rate-of-flow control or used as standalone valves. Our experts provide sizing, application engineering, start-up training, and ongoing technical support to ensure reliable operation and efficient performance.
Certifications
All butterfly valves meet or exceed AWWA C504 and C516 standards. PFS maintains ISO 9001 quality certification, with ASME, PED, and Canadian Registration Number (CRN) compliance available for global projects.
