Butterfly Valves Saudi Arabia Guide Types and Uses
                     
BUTTERFLY VALVES SAUDI ARABIA GUIDE
Understanding industrial valves for flow control and 
pipeline systems
INTRODUCTIO
• Butterfly valves are quarter-turn valves used to control 
Nor isolate fluid flow in pipelines. 
• They are widely used in many industries due to their 
compact size, low cost, and fast operation. 
• In Saudi Arabia, these valves are vital in sectors like 
water, oil & gas, chemical processing and power 
generation.
WHAT IS A BUTTERFLY VALVE?
• A valve with a rotating disc that opens or closes flow with a 
90° turn. 
• When open, the disc aligns with the flow; when closed, it 
blocks flow. 
• Operated manually, pneumatically or electrically. 
HOW BUTTERFLY VALVES 
• The disc is mounted on a shaft inside the valve body. 
W• ROotaRtinKg the shaft turns the disc for on/off or throttling 
control. 
• Quick quarter-turn action makes them efficient in many 
systems. 
MAIN TYPES BY DESIGN
• Wafer Butterfly Valves
• Fits between flanges and lightweight for easy installation. 
• Lug Butterfly Valves
• Has threaded lugs enabling one-side
SPECIALIZED TECHNICAL 
• Concentric Valves
T•YDPiscE aSnd shaft are aligned centrally; ideal for low-
pressure systems. 
• Eccentric Valves (Double/Triple Offset)
• Offsets reduce friction and improve sealing, ideal for high 
pressure/temperature
 MATERIALS USED
• Cast iron & ductile iron — general applications. 
• Stainless steel — for corrosion resistance. 
• Special alloys & metal liners — high temperature and 
aggressive fluids. 
• Rubber or elastomer seats for tight sealing in low-
temperature systems. 
ADVANTAGES OF BUTTERFLY 
V•ACoLmVpaEcSt & lightweight — easier to install and support. 
• Fast operation — quick on/off with a 90° turn. 
• Low maintenance — simple design reduces upkeep. 
• Cost-effective — generally less expensive than other 
valves. 
• Versatile applications in many industries.
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