QUANSHUN BRAND Bi-directional sealing butterfly valve have been installed at NANJING JINLING HUNTSMAN NEW MATERIAL COMPANY LIMITED .

QUANSHUN BRAND Bi-directional sealing butterfly valve have been installed at NANJING JINLING HUNTSMAN NEW MATERIAL COMPANY LIMITED  .
This special butterfly valve  can be  well sealing under the positive pressure and be cutt off under the negative pressure when negative pressure is stronger than the positive pressure.
The max size can up to DN3500 ,widely used in the circulating water system in chemical industry . ,especially suit for the non-clean circulating water .



It is a new update valve instead of  triple eccentric metal sealing valve ,with metal to metal sealing structure ,not include any graphite material between the sealing structure.
if there are any particle in the fluid ,the special shearing force will cut off the particle ,and make the sealing more tightly .

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Y Type Slurry Valve

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