Double flange type   EN593
Face to face dimension acc.to ISO5752 series 14(DIN3202 F4)
Flange dimensions and drillings as per ISO7005-2(EN1092-2,DIN2501)
Size: DN100--DN40000
Pressure: PN10--PN40
Coating: fusion bonded epoxy coating min.thickness more than 250 micron
Suitable medium: water and low-corrosive liquid etc.
Suitable temperature: -10--120 degree.
 

Characteristic

1.Bi-directional rubber seated function,specially suitable for the working condition with two-way medium flow direction.

2.With the eccentric sealing structure,the valve posseses the function of more closing more tight,and reliable sealing performance.

3.The material of valve body and butterfly disc main body is nodular cast iron,sealing material is stainless acid-proof steel and butane oil-proof rubber and long life usage.

4.The valve axle adopts semi-axle structure; butterfly disc structure is truss type,high strong butterfly board,big flow area,small resistance and little consumption of energy.