Forged steel valves are valves manufactured through forging processes and precision machining, including hot forging, die forging shaping, and temperature controlled cooling. So what are the good features of forged valves?
Compared to ordinary cast valves:
In terms of strength, forged steel valves are subjected to high-pressure hammering, resulting in denser metal; Casting valves through liquid pouring are prone to porosity.
In terms of pressure resistance: forged steel valves can withstand 42MPa (≈ 420 atmospheres); Cast valves typically have a pressure of less than 10MPa.
Applicable scenarios: Forged steel valves are suitable for power plant steam pipes and high-pressure oil pipes; Cast valves are suitable for ordinary water pipes and low-pressure air pipes.
In short, forging steel is like a “thousand tempered sword”, casting is like “pottery poured out of a mold”.