The sealing surface of the Hanno Valve’s Stainless Steel Gate Valves is made of Stellite cobalt-based carbide surfacing with different hardness, which has reliable sealing, high hardness, high temperature resistance and long service life. The main material of Stainless Steel Gate Valves are CF8, CF8M, CF3, CF3M, 12Cr18Ni9Ti, 12Cr18Ni10Ti, 10Cr17Ni13Mo2Ti , 12Cr18Ni12Mo3Ti, etc.
Hanno Valve’s Stainless Steel Gate Valves is a device used for gate valves where the gate moves linearly with the valve stem.
The opening and closing component of a gate valve is a gate plate, and the direction of movement of the gate plate is perpendicular to the direction of the fluid. A gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve has two sealing surfaces, and the most commonly used mode gate valve has two sealing surfaces that form a wedge shape. The wedge angle varies with the valve parameters, usually 50 degrees, and 2 ° 52 degrees when the medium temperature is not high. The gate of a wedge gate valve can be made as a whole, called a rigid gate; It can also be made into a gate that can produce slight deformation to improve its processability and compensate for the deviation of the sealing surface angle during the processing. This type of gate is called an elastic gate. Stainless steel gate valves are divided into 304 stainless steel gate valves, 316 stainless steel gate valves, and 321 stainless steel gate valves. The representation method is: Z41H-16P
1. The selection of materials is meticulous, in compliance with relevant domestic and international standards, and the overall quality of the materials is high.
2. Meets the requirements of advanced domestic and international standards, with reliable sealing, excellent performance, and beautiful appearance.
3. The sealing pair is advanced and reasonable, and the sealing surfaces of the gate and valve seat are made of Stellite cobalt based hard alloy with different hardness by welding. The sealing is reliable, with high hardness, wear resistance, high temperature resistance, corrosion resistance, good scratch resistance, and long service life.
4. The valve stem has undergone quenching and surface nitriding treatment, exhibiting excellent corrosion resistance, abrasion resistance, and wear resistance.
5. Adopting a wedge-shaped elastic gate structure, thrust bearings are installed on the medium and large diameters, with low friction, and equipped with manual impact for easy and smooth opening and closing.
NO. | Part name | Materials |
---|---|---|
1 | Body | 12Cr18Ni9Ti |
2 | Seat surface | STL |
3 | Disc | 12Cr18Ni9Ti+STL |
4 | Stem | F304 |
5 | Gasket | 304+Graphite |
6 | Nut | A194-8 |
7 | Bolt | A193-B8 |
8 | Bonnet | 12Cr18Ni9Ti |
9 | Sealing surface | 12Cr18Ni9Ti |
10 | Packing | Expanded graphite |
11 | Gland flange | 12Cr18Ni9Ti |
12 | Bolt | A193-B8 |
13 | Nut | A194-8 |
14 | Yoke | 12Cr18Ni9Ti |
15 | Box | Molectron |