Product

Product Introduction

The structure features that the valve stem axis deviates from the center of the disc and the center of the body.

The effect of double eccentricity enables the disc to be quickly removed from the seat after the valve is opened, greatly eliminating the unnecessary excessive extrusion and scratching phenomenon between the disc and the seat, reducing the opening resistance distance, reducing wear, and improving the life of the seat.

Greatly reduce the scraping, but also makes double eccentric butterfly valve can also use metal seat, improve the application of butterfly valve in the field of high temperature.

Product Feature

1.Double eccentric butterfly valve is more resistant to high pressure，longer life and good stability than the concentric butterfly valve.

2.With two-way sealing function, good sealing performance, positive and negative directions can reach "zero leakage". Installation is not limited by the flow of media.

3.Valve body, the main material of the butterfly plate are made of ductile iron, and the sealing pair is made of stainless steel and rubber, with a long service life.

4.Reasonable design,compact structure, easy assembly and disassembly and easy maintenance.

5.Eccentric structure,reduce the friction of the seal ring,prolong the service life of the valve.

6.Completely sealed, zero leakage. It can be used in ultra-high vacuum condition.

Working principle

The double eccentric soft sealing butterfly valve solves the problem that the disc of the concentric sealing butterfly valve rubs the valve body sealing ring,causing damage to the sealing ring. The disc sealing ring leaves the valve seat at the moment the valve is opened and the sealing surface of the disc contacts the valve seat when the valve is closed a few degrees later,avoiding the phenomenon that the sealing surface is damaged due to consistent friction during the opening and closing process.