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Butterfly Valves in Compressed Air & Vacuum Services

From Hayward Flow Control Systems
 

 

Because a butterfly valve uses a disc to control flow, much like a damper in a duct system, some people occasionally want to use it to control the flow of compressed air and other gases, or for vacuum service. Will it work in these no-liquid applications? For the most part the answer will be yes, depending on applications specifics.


Products & Services
Pressure regulators are used to maintain a constant outlet pressure or flow. Search by Specification | Learn more about Pressure Regulators
Tempering valves and thermally actuated valves contain a thermal sensing component that opens or closes in response to temperature changes. Search by Specification | Learn more about Tempering Valves and Thermally Actuated Valves
Globe valves are linear motion valves with rounded bodies, from which their name is derived.  They are widely used in industry to regulate fluid flow in both on/off and throttling service.  Search by Specification | Learn more about Globe Valves
Pressure relief valves are self-actuated safety valves designed to relieve excess pressure upstream from the line. Search by Specification | Learn more about Pressure Relief Valves
Solenoid valves are devices that use a solenoid to control valve activation. Search by Specification | Learn more about Solenoid Valves

Product Announcements
K-Tron Premier - Butterfly Gate Valve
The Butterfly Gate controls gravity flow discharge from storage bins or hoppers. Butterfly Gates are well suited for controlling air-only lines in pneumatic conveying systems. Multiple gates can be... (read more)
Vortex Valves, a Division of Salina Vortex Corporation - Butterfly Valves
Salina Vortex Corporation now offers to its customers resilient-seated Butterfly Valves in 2" through 72" sizes. (read more)
Sierra Instruments, Inc. - Compressed Air Energy Savings- Find Wasted Cash
Thermal Flow Meters Find Wasted Cash In this era of rising energy costs and global competitiveness, compressed air waste in facilities can be a major financial drain to the bottom line. Air may be... (read more)
Clark Solutions - Hi-Performance Diaphragm Pump-Single or Dual Heads
Boxer 5100 & 5200 diaphragm pumps are ideal for pressure or vacuum applications where low current and reliability are the prime requirements. These pumps are designed for use with compatible... (read more)
Clark Solutions - Clark Offers Piston Type Flow Switches Online
Clark Solutions launches ecommerce site allowing online purchase of piston type flow switches for applications such as medical devices, semiconductor processing equipment, HVAC systems, welding... (read more)
GF Piping Systems - Large Diameter Butterfly Valves with PVDF/PTFE
GF Piping Systems' New Large Diameter Butterfly Valves with PVDF/PTFE Offer Superior Chemical Resistance and High Temperature Range for Harsh Environments. (read more)
Clark Solutions - Molded Inert Isolation Valve Available-Buy Online
Clark Solutions launches ecommerce site allowing on line purchase of Solenoid Operated, Two Way, 4 or 6 mm Orifice Molded Inert Isolation Valves. (read more)
 

Topics of Interest
3.4.1 Introduction to Manual Butterfly Valves The manual butterfly valve is a quarter-turn (0° to 90°) rotary-motion valve that uses a round disk as the closure element. When in the fullopen... (Read More)
4.3.1 Introduction to Butterfly Control Valves Although the butterfly valve has been in existence since the 1930s, it was used mainly as an on–off block valve until the past two decades, when... (Read More)
BUTTERFLY VALVES Butterfly valves are rotary valves in which a disc-shaped closure member is rotated through 90 , or approximately, to open or close the flow passage. The butterfly valves shown in... (Read More)
Extreme pressures or temperatures individually are not usually the problem, but rather their combination.   Process Conditions that Influence Valve Design Process conditions, such as pressure... (Read More)
4.5.1 Introduction to Eccentric Plug Control Valves One control valve design that is growing in demand is the eccentric plug valve (sometimes called eccentric rotating plug valve), which combines... (Read More)