Mold inspection
- Critical dimensions
- Surface quality
- Structural integrity
Quality Control
Critical quality checkpoints
Guided by ISO 9001/14001/45001, oil and gas HSE, CE and other international management systems, VOLM applies quality control throughout the production process.
Casting and forging control
- Appearance
- Internal quality
- Dimensions
- Material properties
Machining process control
- Critical dimensions
- Geometric tolerance
- Surface roughness
- Balancing
- Hydrostatic testing
Assembly process control
- Surface cleanliness
- Assembly accuracy
- Clearances
- Assembly reliability
Performance testing
- Pressure, flow, temperature, speed and power
- Cavitation
- Noise and vibration
- Stability
Dispatch inspection
- Appearance and dimensions
- Completeness
- Packaging
- Labels
- Delivery details
National grade-one test center Every pump passes rigorous factory inspection.
Process pump and liquid-ring vacuum pump test center · Zibo
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1,000 m² dry vacuum pump test center National-standard full testing.
Dry vacuum pump test center · Yantai
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