QUALITY ASSURANCE FOR PULLEN PUMP
• We believe in continuous improvement in our product & service as per our customer’s requirement.
• We have an in-house foundry for non-ferrous castings.
• Pre-production: High-graded raw material.
• Production: Stringent in-process inspection at every stage.
• Post-production: Finished product testing.
 
• All major components like Impeller, Casing, Shaft etc. are individually analyzed.
• Physical Test – for tensile strength and elongation factor.
• Chemical Test – done on component / test bar.
• Hydraulic Pressure Test – two or more minutes of 1.5 times shut-off pressure, or 2 times working pressure (whichever is greater).
• Component dimension inspection by means of calibrated Vernier Calipers, Micrometers, Plug Gauge, Bore Gauge, Thread-Ring Gauge, Height Gauge and Dial Indicator.
• Impeller Balancing – both static and dynamic.
• Rejected material is scrapped immediately.
• Accepted components checked for fitness at Stores or Assembly Shop.
• Final Testing of submersible pump set as per customer requirement or relevant standard.
• Testing of pump set at different frequency (with VFD) upto 500 HP and above capacity.
• Flow measuring capacity of upto 70,000 litres / minute by means of Square Notch.
• Post-test dismantling to check for wear-and-tear / damage, after final testing of pump set.
• Pump painting as per customer’s requirement.
• Compact and careful packing, to ensure safety during transit.