Разгрузочные клапаны Duplex
Дуплексная нержавеющая сталь - это сталь, которая имеет половину ферритной фазы и половину аустенитной фазы в своей закалочной структуре, и обычно минимальное содержание фазы должно быть до 30%.
Описание
Material Features Of Duplex Discharge Valves
- Duplex stainless steels containing molybdenum have good performance of resistance to chloride stress corrosion under low stress.
- Duplex stainless steels containing molybdenum have good corrosion resistance.
- It has good resistance to corrosion fatigue and wears and corrosion.
- Good comprehensive mechanical properties.
Good weld-ability, the low tendency of hot cracking. Generally, it doesn’t need preheating before welding and doesn’t need heat treatment after welding. It can do dissimilar welding with 18-8 type austenitic stainless steel or carbon steel.
Compared with austenitic stainless steel, it has higher thermal conductivity and a low linear expansion coefficient. It is suitable for the lining of equipment and the production of composite plates
Duplex Discharge Valves Type
Downward discharge valves
Design Features
Desgin :HG5-89-1 &HG-16-79
Flanged Ends: ASME B16.5 RF
Test:ASME 598
Parts & Material
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| No. | Part Name | Material |
| 1 | Disc | Duplex |
| 2 | Disc bonnet | Duplex |
| 3 | Seat | Duplex |
| 4 | Gasket | Duplex+Graphite |
| 5 | Stem | Duplex |
| 6 | Body | Duplex |
| 7 | Packing | Graphite |
| 8 | Gland bushing | Duplex |
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