High-Precision Diaphram Pump Castings Built to Perform

At Invent Cast, we specialize in manufacturing precision investment-cast diaphragm pump components engineered to global performance and safety standards. Designed for reliable fluid handling, leak-proof operation, and long-term durability — our castings ensure dependable performance in industries where efficiency, precision, and safety are critical.

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  • 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.
  • ✼
  • 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.
  • ✼

Manufacturing Process

  • Optimized Mold Design: Ensures accurate cavity formation for consistent quality

  • Controlled Metal Pouring: Minimizes porosity, shrinkage, and internal defects

  • Heat Treatment: Improves mechanical strength, toughness, and corrosion resistance

  • Precision CNC Machining: Provides tight tolerances and smooth sealing surfaces

  • Comprehensive Testing: Pressure, vacuum, and leak tests to ensure leak-proof, reliable operation

Our Diaphram Pump Casting Range
Diaphram Pump Casting Technical Data
R&D Software: Solidworks, AutoCAD, Pro/E, Flow Simulation
Lead Time for Development & Samples: 25–40 days
Molten Metal Options Stainless Steel: CF8, CF8M, Duplex, Super Duplex
Carbon Steel: WCB, LCB
Special Alloys: Bronze, Aluminium Alloy, Nickel Alloys
Standards API, ASTM, ASME, DIN, EN, BS, JIS
Shell Material Silica Sol (precision thin-wall casting)
Water Glass (for larger-size components)
Hybrid Shells (Silica Sol + Water Glass)
Technical Parameters Piece Weight: 0.5 kg to 150 kg
Max Dimension: 1,200 mm
Min Wall Thickness: 3–6 mm
Casting Roughness: Ra 3.2–6.3 μm, Machined Ra 1.6 μm
Casting Tolerance: ISO 8062 CT6–CT8
Pressure/Vacuum Rating: As per API 674 / ISO 2858
Heat Treatment Normalizing, Stress Relieving, Solution Annealing, Tempering
Surface Treatment Sand/Shot Blasting, Pickling & Passivation, Epoxy Coating, Electropolishing, Anodizing (Aluminium)
Testing & Inspection Dimensional Check (CMM, Gauges), NDT (Dye Penetrant, X-ray, Ultrasonic), Leak & Pressure Testing, Flow Performance Testing
Product Capability Up to 120 tons/month; pump sizes ranging from 1” to 12”
Applications Chemical Processing, Water & Wastewater, Oil & Gas, Pharmaceutical, Food Processing, Marine Industries

Testing & Compliance

We ensure every breather valve casting meets global quality and safety standards through rigorous testing and compliance checks:

  • Dimensional Accuracy: CMM, gauges, and precision measuring tools for exact body, chamber, and port alignment

  • Non-Destructive Testing (NDT): Dye Penetrant, Radiography, and Ultrasonic inspection to ensure defect-free surfaces and structural integrity

  • Mechanical Testing: Hardness, tensile strength, yield strength, elongation, and impact resistance to confirm durability under operational stress

  • Chemical Analysis: Spectro analysis to verify alloy composition and material compliance

  • Pressure & Vacuum Testing: Verification of leak-proof performance, flow capability, and compliance with API 674 / ISO 2858 standards

  • Surface & Finish Checks: Surface roughness, coating adhesion, and corrosion resistance validation for long-term reliability

  • 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.
  • ✼