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I. Design Principle of Triple-Eccentric Butterfly ValveThe triple-eccentric butterfly valve has achieved a technological breakthrough in the field of sealing performance. Its core mechanism relies on the design of three innovative eccentric structures.First Eccentricity: By offsetting the centerline

Overview of API 609 and ASME B16.34 Standards API 609 StandardDeveloped by the American Petroleum Institute (API), API 609 specifies the design, manufacturing, and testing requirements for butterfly valves. This standard covers various types of butterfly valves, including double-flanged, wafer-type,

I. Definition and Challenges of Extreme Working ConditionsExtreme working conditions usually refer to environments that exceed normal operating conditions, including high temperature, low temperature, high pressure, strongly corrosive media, high-flow impact, etc. These conditions impose extremely s

Design Standards for Butterfly ValvesKey Standards and SpecificationsSeveral international and national standards govern the design and performance of butterfly valves, especially those intended for extreme conditions. Some of the most relevant standards include:• ANSI/FCI 70-2: This standard specif

Understanding Triple-Eccentric Butterfly Valvesriple-eccentric butterfly valves are designed with three distinct eccentricities that enhance their sealing performance and reduce wear. These eccentricities are:1. Axial Eccentricity: The valve stem is offset from the centerline of the valve body, allo

Understanding Triple-Eccentric Butterfly ValvesTriple-eccentric butterfly valves are designed with three eccentricities that enhance their sealing performance and reduce wear. The design features include:1. First Eccentricity (Axial Eccentricity): The valve stem is offset from the centerline of the

API Standards for Butterfly ValvesAPI 609: Butterfly Valves• Design and Performance: API 609 is a widely recognized standard for butterfly valves, specifying detailed requirements for design, materials, dimensions, and testing. These valves are known for their simple design, lightweight, and quick o

Understanding Corrosion ResistanceWhat is Corrosion Resistance?Corrosion resistance refers to a material's ability to withstand chemical attack and degradation over time. In industrial settings, butterfly valves are often exposed to corrosive fluids, high temperatures, and fluctuating pressures, mak

Understanding Butterfly Valve SealsWhat are Soft Seals?Soft seals in butterfly valves are typically made from elastomeric materials such as EPDM (Ethylene Propylene Diene Monomer), NBR (Nitrile Butadiene Rubber), or PTFE (Polytetrafluoroethylene). These materials provide excellent sealing properties

Understanding Butterfly ValvesWhat are Butterfly Valves?Butterfly valves are quarter-turn valves that use a circular disc to control fluid flow. The disc rotates around a central shaft, allowing for quick and efficient control of fluid flow. Butterfly valves are known for their compact size, lightwe

Butterfly Valves in the Chemical IndustryDesign and Performance• Compact Structure: Butterfly valves are known for their compact design, which makes them suitable for applications with limited space. They consist of a circular disc that rotates around a central axis to control fluid flow.• Low Flow

Gate Valves: Design Standards and Industry NormsStructure and FunctionGate valves are linear motion valves that use a gate or wedge to control the flow of fluids. The gate moves perpendicular to the flow direction, allowing for precise control and reliable sealing. When fully open, the gate is retra

Understanding Butterfly Valves in Water Treatment SystemsStructure and FunctionButterfly valves are quarter-turn valves that use a flat disc mounted on a rotating stem to control the flow of fluids. The disc rotates to open or close the valve, and it remains in the flow path even when the valve is f

Gate Valves: Casting Process and AdvantagesStructure and FunctionGate valves are linear motion valves that use a gate or wedge to control the flow of fluids. They are designed to provide a tight seal and are commonly used in applications requiring full flow and minimal pressure drop. The structure o

Understanding Flanged Butterfly ValvesDesign and OperationFlanged butterfly valves feature flanged ends that allow for easy connection to pipelines using bolts and gaskets. The flanged design provides a secure and reliable connection, making these valves suitable for a wide range of applications.Key