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D Series High-Performance double eccentric butterfly valve is a kind of valve introduced by FDV to absorb European advanced technology. It adopts double eccentric butterfly plate with spherical surface and a single flexible lip seal seat. It is suitable for the occasions requiring reliable sealing and good adjustment characteristics. The valve has tight sealing performance and long service life, and can be used for quick cut-off or flow adjustment.

Application: petrochemical, power system, vacuum system, air separation system, water treatment and other fields

Introduction of high performance double eccentric butterfly valve

1: After opening 5 degrees, the valve seat is completely separated from the butterfly plate without contact

2: There is no wear point on the valve seat

3: Low torque, small actuator requirements

4: The design pressure can be as high as 10MPa

Characteristics of high performance double eccentric butterfly valve

1: Using the unique dynamic load sealing PTFE valve seat design, good elasticity and high reliability

2: The lip seal structure can compensate the change of temperature and pressure to keep the seal

3: Super long service life, laboratory life can be 1 million times

4: Zero leakage of bidirectional seal of valve (higher than American Standard Grade 6)

5: The valve seat can be replaced by removing the insert, which is convenient for maintenance

6: The top of the valve stem is provided with a safe and anti blow out structure

7: It has excellent regulation characteristics