| Valve Type | Metal seat gate valve | Structure | Rising type |
| Standard | EN/API/DIN/GOST | Workmanship | Investment casting |
| Sealing Direction | Bidirectional | Sealing Grade | Zero leakage |
| Temperature | -30°C < T < 425°C | Operation | Handwheel |
The sealing surface of stainless steel valves is welded with Stellite or cobalt chromium tungsten alloy, with a hardness of ≥ HRC58, a temperature resistance of up to 600 ℃, and a leakage level of ANSI Class IV. It is suitable for high-temperature and high-pressure corrosive media such as high-temperature dilute nitric acid.
Conventional stainless steel gate valves can operate stably within the range of -200 ℃ to 600 ℃. They are not easily oxidized or deformed at high temperatures and have no risk of brittle fracture at low temperatures, making them suitable for extreme working conditions.
Metal hard seal type: Welded with hard alloy (Stellite), offering service lives 3–5 times that of carbon steel valves with ANSI Class IV leakage levels.
Soft seal type: Uses PTFE/PFA materials to achieve ANSI Class VI zero leakage. The anti-rust nature of stainless steel prevents valve stem jamming.
All products are packed in standard export wooden cases to ensure safe transportation and protection against external elements.
Our stainless steel gate sluice valves are widely used in industrial and residential pipeline systems for corrosive media, clean fluids, and extreme temperature environments.