|Stainless steel 316. other steel grade also available|
Silica sol casting
ISO 8062 CT6
Generally, the passageway in valve bodies should be smooth, and considering the medium is corrosive, stainless steel
valves made by silica sol casting process is the first choice.
How to shape the wax pattern is a crucial step in the production of valve body casting. Due to the bodies’ complex
cavities or long liner dimension, one-time molding unworkable for the wax pattern. So we usually use two moulds and
then welding the separate wax patterns together. The method not only ensure the valve body forming one-time, but also
decrease its cost.
The final step in production is pressure test. Each piece will be inspected to guarantee gas-tight and no leakage before
dimensions, since it have much better surface quality and less geometrical deviation of dimensions. The main silica sol
decoration etc.Usually, Silica sol casting parts tolerance within GB/T6414, CT5~6, weight range from 20 grams to 50
kilograms, the surface finish is Ra6.3.
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