Diagnostic Inspection, Vibration Analysis & Thermal Imaging

Before disassembling pump casings or compressor crankcases, qualified mechanical engineers perform non-destructive testing (NDT) to isolate root causes.

Key Diagnostic Protocols:

• Vibration Spectrum Analysis: Identifies bearing race pitting, mechanical looseness, rotor unbalance, and hydraulic turbulence.
• Thermal Imaging Inspection: Pinpoints localized friction points, leaking compressor valves, and overheating bearing housings.
• Hydrostatic Pressure Testing: Tests pump casings and compressor heads under hydraulic pressure to verify structural integrity and prevent shell leakage.

Centrifugal Pump Overhaul: Impellers, Shafts & Mechanical Seals

Hydraulic pumps frequently suffer from cavitation damage, abrasive slurry wear, and mechanical seal breakdown.

Pump Repair & Restoration Checklist:

1. Mechanical Seal Replacement: Fitting single, double, or cartridge mechanical seals with precision-lapped silicon carbide or carbon faces.
2. Impeller Machining & Dynamic Balancing: Machining eroded impeller surfaces, applying anti-abrasive ceramic coatings, and balancing to ISO 1940 Grade G2.5 standards.
3. Shaft & Wear Ring Restoration: Lathe machining worn shaft sleeves and replacing casing wear rings to restore tight volumetric tolerances.

Compressor Maintenance: Valves, Pistons & Screw Rotors

Whether servicing reciprocating air compressors or twin-screw refrigeration compressors, restoring internal compression clearances is critical for operational efficiency.

Compressor Overhaul Execution:

• Valves & Ring Replacement: Overhauling suction and discharge reed valves, replacing worn piston rings, and honing cylinder walls.
• Screw Rotor Resurfacing: Inspection of twin-screw rotors, bearing preload setting, and axial clearance setting to eliminate blow-by losses.
• Lubrication System Flush: Cleaning oil coolers, replacing micro-glass oil filters, and refilling with high-performance synthetic compressor lubricants.

Precision Laser Shaft Alignment & Baseframe Mounting

Reinstalling repaired pumps and compressors back onto factory foundations demands zero-tolerance shaft coupling alignment.

Using dual-laser alignment units, technicians correct parallel offset, angular misalignment, and baseframe soft-foot conditions. Proper laser alignment eliminates premature seal failure, extends bearing life, and minimizes power consumption.