Industrial Valves
Industrial Valves
Custom-engineered to deliver capabilities required for your unique flow control environments

Precision Investment Casting Valves

Precision investment casting valves are used in pipelines to control the flow of liquids and gases. Available in stainless steel and carbon steel, they are suitable for water, steam, oil, gas, acids, alkalis, and other industrial media.
Ball Valves

Ball Valves

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Gate Valves

Gate Valves

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Globe Valves

Globe Valves

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Check Valves

Check Valves

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Other Categories
Actuated Valves
Actuated Valves
Precision Investment Casting Components
Precision Investment Casting Components (Duplex Stainless Steel)
Investment Casting Hollow Balls & Valve Balls
Investment Casting Hollow Balls & Valve Balls
Investment Casting Pipe Fittings
Investment Casting Pipe Fittings
Casting Range
  • Materials Available: Stainless steel and carbon steel, such as SUS304, SUS316, SUS316L, WCB, 1.4408, and other grades
  • Unit Weight: 5 g to 150 kg.
  • Standard Dimensional Accuracy: CT4–CT6. CT3 available for selected workpieces
  • Surface Roughness: Ra ≤ 6.3, or Ra ≤ 3.2 after additional finishing
Casting Process
  • Automatic wax injection machines and a centralized control system keep wax pattern forming consistent before casting.
  • Robotic shell-making equipment works with temperature and humidity control in the drying room to keep ceramic shell quality stable.
  • Rapid drying technology shortens the shell-making and drying cycle while maintaining process control.
  • Dewaxing equipment removes moisture from the wax and helps keep wax recovery cleaner.
  • A fully automatic wax treatment system makes wax handling safer, cleaner, and easier to manage during production.
Investment Casting & Valve Manufacturing Since 1987

At SDPLDL, we are a trusted manufacturer specializing in precision investment casting and industrial valves for global markets. We operate our own manufacturing facility featuring over 200 sets of advanced manufacturing equipment and an in-house testing center equipped with 16-ton dynamic balancing machines. Our integrated manufacturing capabilities allow us to seamlessly produce precision investment casting valves, custom stainless steel large-diameter valves, and slurry valves under strict compliance with ISO 9001 standards.