Standard:

1.Design and manufacturing standards according to: DIN3356;

2.Structure length according to: DIN3202;

3.Flange end dimensions according to: din2543-2545;

4.The welding terminal dimensions shall be according to: DIN3239;

5.Test and test according to: DIN3230.

Features:

1.The product structure is reasonable, the seal is reliable, the performance is good, the shape is beautiful;

2.Hard alloy, abrasion resistance, corrosion resistance, good anti-friction performance and long service life;

3.The valve rod and surface nitride treatment have good anti-corrosion and anti-friction

properties

Double seal, the performance is more reliable;

5.The valve stem elevation position indicator is more intuitive;

6.Parts materials, flange and welding dimensions can be selected according to the actual working conditions or users, and meet all kinds of engineering needs.