ANSI/BS/DIN Non rising stem ductile iron Soft Seal Gate Valve
Ductile iron gate valve
Flanged gate valve
The opening and closing parts of the soft seal gate valve, industrial valve and soft seal gate valve are gate plates. The direction of the motion of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed, and can not be adjusted and throttle. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valves form wedges and wedge angles that vary with the parameters of the valve, usually 50 and 2 52''''when the medium is not high.
Soft seal gate valve quality
1, the valve body material should be cast iron, cast steel, stainless steel, 316L and mark the physical and chemical test data of the grade and cast iron.
2, stem material, to stainless steel stem (2CR13), large caliber valve should also be stainless steel embedded package stem.
3, the nut material is made of cast aluminum brass or cast aluminum bronze, and the hardness and strength are greater than that of the stem.
4, the hardness and strength of the valve bushing material should not be greater than that of the stem, and it will not form electrochemical corrosion with the valve stem and valve body under the condition of water immersion.
5, the material of the sealing surface
1. There are different types of soft sealing valves, different sealing methods and material requirements.
2. Ordinary wedge type gate valve, copper ring material, fixed mode, grinding method should be explained;
3. Physical, chemical and hygienic testing data of soft sealing gate valves and valve plate lining materials;
Our company can produce all kinds of valves. If you have any questions, please contact us. We will provide you with the most favorable price.