Investment Valve Casting

Investment valve casting is our precision casting solution for valve components. These parts offer high dimensional accuracy, excellent surface quality, and dense material structure. Our investment valve casting covers ball valve bodies, globe valve bodies, check valve bodies, butterfly valve plates, bonnets, and valve seats. Materials are primarily stainless steel (CF8, CF8M, CF3M). We also work with duplex stainless steel and nickel-based alloys. Applications include petrochemical, food and pharmaceutical, seawater desalination, and semiconductor fluid control systems. Every investment valve casting we produce meets the highest quality standards.

Why do customers choose our investment valve casting? Because valves demand near-perfect casting quality. Any tiny shrinkage, porosity, or crack can cause leakage or even rupture under working pressure. Our lost wax process uses silica sol shells instead of water glass shells. Silica sol shells offer higher strength and better permeability. Our investment valve casting has significantly better surface finish and dimensional accuracy than ordinary precision castings. During pouring, we use argon shielding to reduce oxidation and inclusion formation. For extremely demanding valve castings, we also use vacuum melting and centrifugal casting. These processes further improve material purity and density.

Quality inspection for investment valve casting is much stricter than for ordinary castings. We provide complete inspection reports for every batch. This includes chemical composition analysis (spectrometer), mechanical property testing (tensile and impact), dimensional inspection (CMM), and non-destructive testing (PT, RT, or UT). For valve castings with pressure requirements, we perform hydrostatic or pneumatic testing per customer requirements. Products must pass testing at 1.5 times rated pressure with no leakage. All inspection records are retained for customer traceability. Standard production for investment valve casting takes 45-60 days (including mold development). We accept orders starting from 1 piece. Paid samples are available. Payment terms are 50% deposit for custom products. Long-term cooperation customers enjoy 30% deposit. Our customers include multiple international valve manufacturers. They recognize our professional capability and quality control in valve castings. If you have valve casting requirements, send us your drawing. Our technical team will provide evaluation and quotation within 24 hours.