High-Precision Check Valve Castings Built to Perform
At Invent Cast, we specialize in manufacturing precision investment-cast check valve components engineered to global performance and safety standards. Designed for reliable flow control, leak-proof sealing, and long-term durability — our castings ensure dependable operation in industries where safety and efficiency are non-negotiable.
- 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
We use a precision-controlled casting process to ensure high-quality, durable check valve components. From accurate patterning and controlled pouring to heat treatment, machining, and rigorous inspections, every casting is leak-proof and reliable.
Accurate Patterning: Ensures consistent shape and quality
Controlled Metal Pouring: Reduces defects and porosity
Strengthening Heat Treatment: Enhances durability and toughness
Precision Machining: Smooth surfaces and tight tolerances
Quality Verification: Dimensional, functional, and visual inspections
| Check Valve Casting Technical Data | |
|---|---|
| R&D | Software: Solidworks, CAD, Procast, Pro-E, Flow Simulation |
| Lead Time for Development & Samples: 25–40 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 250 kg |
| Max Dimension: 1,500 mm (Diameter or Length) | |
| Min Wall Thickness: 3–5 mm (depending on pressure class) | |
| Casting Surface Roughness: Ra 3.2–6.3 μm, Machined Surface Roughness: Ra 1.6 μm | |
| Tolerance of Casting: ISO 8062 CT6–CT8 | |
| Tolerance of Machining: ISO 2768-mk / IT6 | |
| Inner Core: Ceramic Core, Urea Core, Water-Soluble Wax Core | |
| Pressure Class: ANSI Class 150–600 (customizable) | |
| Heat Treatment | Normalizing, Quenching & Tempering, Solution Annealing, Stress Relieving |
| Surface Treatment | Polishing, Sand/Shot Blasting, Electropolishing, Pickling & Passivation, Epoxy Coating, PTFE 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 Radiography, Cleanliness Inspection, Carbon-Sulfur Analysis |
| Physical Inspection | Hardness, Yield Strength, Tensile Strength, Elongation, Impact Testing, Dynamic & Static Balancing, Microstructure Analysis |
| Testing & Compliance | Hydrostatic Testing, Air Tightness, Disc/Seat Function Testing, API/ISO Compliance, Fugitive Emission Testing (if applicable) |
| Production Capacity | Up to 150 tons/month, over 1,800 tons annually |
| Applications | Oil & Gas, Chemical Processing, Water Treatment, HVAC, Pharmaceutical, Marine Industries |
Testing & Compliance
We ensure every check valve casting meets international quality, performance, and safety standards through comprehensive testing:
Dimensional Verification: CMM, calipers, and gauges for precise body and seat alignment
Non-Destructive Testing (NDT): Dye Penetrant, X-ray, and Ultrasonic inspection for internal and surface defects
Mechanical & Metallurgical Tests: Hardness, tensile strength, yield strength, elongation, and microstructure analysis
Functional Testing: Disc/seat operation, backflow prevention, hydrostatic pressure, and air tightness tests
Corrosion & Surface Testing: Coating adhesion, passivation quality, and optional salt spray testing
Standards Compliance: API 594 / 598, ASTM, ASME, 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.
- ✼