Valve casting and forging
(1) Sand casting: the earliest production mode in the field of valves. Because there is not enough pressure in the casting type, the valves produced by this process are prone to produce sand holes, resulting in product leakage and a series of problems.
(2) Hot forging and press forging: the valve body formed by forging and press will not have sand holes and the appearance will be more beautiful.
Sanding treatment
●Metalworking
●Assembly of accessories
●Product pressure test
●Packing and sealing