Reliable Screw Pump Overhaul for Industry

A screw pump moves liquid by using one or more rotating screws to create sealed cavities that carry fluid from the inlet to the discharge. Its design supports smooth, consistent flow and can be well suited to lubricating oils, fuels, hydraulic fluids, and other viscous process liquids. In industrial service, dependable clearances, sealing, alignment, and shaft condition are essential to maintaining performance.

The primary parts generally include the pump casing or housing, one or more screw rotors, drive and idler shafts where applicable, bearings, mechanical seals or packing, gaskets, end covers, and inlet and discharge connections. Some designs also use timing gears, relief valves, or lubrication features. During an overhaul, each part is inspected for wear, damage, corrosion, and dimensional condition.

An overhaul should be considered when a pump shows reduced flow or pressure, unusual noise or vibration, recurring seal leakage, rising operating temperature, excessive power consumption, or evidence of internal wear. Planned overhaul is also appropriate when inspection findings indicate deteriorating shafts, bearings, rotors, or clearances. Addressing these conditions early can help avoid a more disruptive failure and prolonged downtime.

A typical overhaul includes disassembly, cleaning, detailed inspection, identification of worn or failed components, and a documented repair scope. Depending on the findings, work may include component reconditioning, precision machining, shaft restoration, mechanical seal and gasket replacement, or sourcing replacement parts. The pump is then reassembled and tested to verify proper operation before it is returned to service.

In many cases, yes. Houston Pump & Gear evaluates worn components to determine whether machining, refurbishment, metal-spray shaft restoration, or other reconditioning methods can return them to serviceable condition. Repair feasibility depends on the component’s material, wear pattern, dimensions, and operating role. When restoration is not appropriate, replacement or newly manufactured components may be recommended to support reliable operation.

Yes, obsolete or legacy pump equipment may be restored when OEM support, drawings, or replacement components are no longer readily available. Houston Pump & Gear can evaluate damaged parts and use reverse-engineering, precision machining, shaft manufacturing, and component refurbishment capabilities to recreate needed items. This approach can reduce dependence on difficult-to-source parts while helping preserve the useful life of existing equipment.

For critical failures, Houston Pump & Gear offers 24/7 emergency industrial repair support and same-day pickup response capabilities. The team assesses the equipment, identifies the repair path, coordinates needed machining or component work, and prioritizes turnaround for urgent situations. A documented emergency project returned a power plant gearbox to service within 72 hours, demonstrating the company’s focus on timely recovery planning.

Yes. Houston Pump & Gear serves industrial customers across Texas and Louisiana. Mobile field response and dedicated transport trucks support equipment pickup and repair coordination for facilities that need service assistance beyond a single shop location. When planning a screw pump overhaul, provide the pump type, operating issue, and facility location so the team can help determine the most practical service approach.