The flanged resilient seated butterfly valve is a robust and versatile fluid control valve,widely applied in industrial,municipal,and commercial pipeline systems.As a key variant of the resilient seated butterfly valve,it is characterized by its integrated flange design—each end of the valve body is equipped with standard flanges that directly connect to pipeline flanges,ensuring stable installation,reliable sealing,and strong pressure-bearing capacity,making it suitable for medium and high-pressure working environments where tight connection and safety are prioritized.

The core structure of this valve comprises a sturdy valve body,a concentric rotating disc,a central stem,and a high-performance resilient sealing seat.The valve body is typically manufactured from cast iron,cast steel,or stainless steel,which provides excellent structural rigidity,corrosion resistance,and durability to withstand harsh medium conditions and high-pressure impacts.The resilient seat,made of premium elastomers such as EPDM,NBR,or Viton,boasts superior elasticity,wear resistance,and aging resistance,enabling bubble-tight shut-off when the valve is closed and effectively preventing medium leakage.

Unlike wafer-type valves,the flanged design eliminates the need for additional clamping components,ensuring a more stable connection and better pressure resistance.The valve operates with a 90-degree rotation of the disc,enabling quick opening and closing with small operating torque;it can be equipped with manual,electric,or pneumatic actuators to meet automatic or manual control requirements.It is compatible with international standard flanges(such as ANSI,DIN,GB),suitable for pipelines with nominal diameters from DN50 to DN1500,and works stably under pressure ranges of PN10-PN40,adapting to diverse working conditions.

Installation of the flanged resilient seated butterfly valve is straightforward:align the valve flanges with the pipeline flanges,fasten them with bolts,and ensure uniform torque to avoid uneven stress.Daily maintenance is simple—regularly check the sealing performance,lubricate the stem,and replace the resilient seat when worn,which effectively extends the valve’s service life.This valve is widely used in water supply and drainage,sewage treatment,petrochemical,power generation,HVAC,and fire protection systems,suitable for controlling clean water,sewage,mild corrosive liquids,and low-pressure gases.

In summary,the flanged resilient seated butterfly valve integrates reliable sealing,strong pressure-bearing capacity,easy installation,and long service life.It is an ideal fluid control solution for medium and high-pressure pipeline scenarios,providing stable and efficient support for the safe operation of various industrial and municipal pipeline systems.