High-Precision Butterfly Valve Castings Built to Perform
At Invent Cast, we specialize in manufacturing precision investment-cast butterfly valve components engineered to global performance and safety standards. Built for lightweight strength, sealing accuracy, and smooth flow regulation — our castings ensure dependable performance in industries where efficiency and reliability are critical.
- Serving clients across USA, Europe, and India with precision-engineered components.
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- Delivering high-tolerance metal parts with complex geometries and repeatable accuracy.
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- From prototyping to high-volume production, all under one roof.
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- Serving clients across USA, Europe, and India with precision-engineered components.
- ✼
- Delivering high-tolerance metal parts with complex geometries and repeatable accuracy.
- ✼
- From prototyping to high-volume production, all under one roof.
- ✼
- Serving clients across USA, Europe, and India with precision-engineered components.
- ✼
- Delivering high-tolerance metal parts with complex geometries and repeatable accuracy.
- ✼
- From prototyping to high-volume production, all under one roof.
- ✼
Manufacturing Process
High-Precision Molding: Uniform cavity shapes for consistent quality
Controlled Pouring: Minimizes shrinkage, porosity, and turbulence defects
Heat Treatment: Optimizes strength, hardness, and durability
CNC Machining: Tight tolerances and smooth sealing surfaces
Final Inspection & Testing: Dimensional, visual, and functional checks for leak-proof, reliable performance
| Butterfly Valve Casting Technical Data | |
|---|---|
| R&D | Software: Solidworks, CAD, Procast, Pro-E, Flow Simulation |
| Lead Time for Development & Samples: 25 to 40 days | |
| Molten Metal | Stainless Steel: CF8, CF8M, Duplex, Super Duplex |
| Carbon Steel: WCB, LCB | |
| Alloys: Aluminium Alloy, Bronze, Nickel-base Alloy, Copper Alloy | |
| Metal Standard | ASTM, ASME, API, DIN, EN, BS, JIS |
| Material for Shell Building | Silica Sol (Precipitated Silica) |
| Water Glass (Sodium Silicate) | |
| Mixtures of Silica Sol and Water Glass | |
| Technical Parameter | Piece Weight: 500 g to 200 kg |
| Max Dimension: 1,200 mm for Diameter or Length | |
| Min Wall Thickness: 3 mm (depending on pressure class) | |
| Casting Roughness: Ra 3.2–6.3, Machining Roughness: Ra 1.6 | |
| Tolerance of Casting: ISO 8062 CT6–CT8 | |
| Tolerance of Machining: ISO 2768-mk / IT6 | |
| Inner Core: Ceramic Core, Urea Core, Water Soluble Wax Core | |
| Heat Treatment | Normalizing, Quenching & Tempering, Solution Annealing, Stress Relieving |
| Surface Treatment | Polishing, Sand / Shot Blasting, Electropolishing, Pickling & Passivation, Epoxy Coating, Anodizing |
| Dimension Testing | CMM, Vernier Caliper, Depth Gauge, Height Gauge, Go/No-Go Gauge, Special Fixtures |
| Chemical Inspection | Chemical Composition Analysis (20 elements), X-ray Radiographic Inspection, Cleanliness Inspection, Carbon-Sulfur Analysis |
| Physical Inspection | Mechanical Properties (Hardness, Yield Strength, Tensile Strength, Elongation), Dynamic & Static Balancing |
| Testing & Compliance | Hydrostatic Testing, Air Tightness, Set Pressure Verification, API/ISO Compliance |
| Production Capacity | Up to 150 tons/month, over 1,800 tons annually |
Testing & Compliance
We ensure every butterfly valve casting meets global quality, performance, and safety standards through rigorous testing and compliance procedures:
Dimensional Checks: CMM and gauges for precise fit
NDT Inspection: Dye Penetrant, Radiography, Ultrasonic for defect-free castings
Mechanical & Chemical Tests: Hardness, tensile strength, alloy verification
Pressure & Functional Testing: Hydrostatic, air tightness, disc rotation, torque tests
Standards Compliance: ASTM, ASME, API, DIN, EN, BS, JIS
- Serving clients across USA, Europe, and India with precision-engineered components.
- ✼
- Delivering high-tolerance metal parts with complex geometries and repeatable accuracy.
- ✼
- From prototyping to high-volume production, all under one roof.
- ✼
- Serving clients across USA, Europe, and India with precision-engineered components.
- ✼
- Delivering high-tolerance metal parts with complex geometries and repeatable accuracy.
- ✼
- From prototyping to high-volume production, all under one roof.
- ✼
- Serving clients across USA, Europe, and India with precision-engineered components.
- ✼
- Delivering high-tolerance metal parts with complex geometries and repeatable accuracy.
- ✼
- From prototyping to high-volume production, all under one roof.
- ✼