Adopting a proactive maintenance strategy is key to eliminating frequent failures modes and lengthening the helpful lifetime of pumps, which is why liquid flange gaskets and thread locking adhesives can supply significant advantages over standard compression gaskets.
In today’s fast-moving, constantly evolving industrial panorama, pump downtime may be extremely expensive in misplaced output, notably the place the pump has a production-critical position. For this purpose, these working in processing sectors corresponding to paper, energy generation, chemicals, sugar, mining and oil and gas, will know all in regards to the pressures that include pump maintenance.
Conventional pre-cut compression gaskets are vulnerable to long-standing issues like shrinkage, leisure, extrusion and breakage, all of which can promote leaks between the bearing frame and adapter, or between the stuffing box and pump casing, for example. One method forward is to completely eradicate the requirement for a cut gasket by switching it with a liquid gasketing adhesive. Such a product fills all of the air space between the mating elements to create an ideal seal, whereas concurrently eliminating flange face corrosion.
MRO workshops Among those capable of profit are upkeep, repair and operations (MRO) workshops, the place any liquid gasketing product needs to be fast and dependable, yet straightforward to dismantle for further maintenance activities. In addition, the product should allow straightforward software and provide lower prices than traditional gaskets and slow-curing chemical solutions.
Loctite 518 a methacrylate-based gasketing product that’s sutiable where low power is of paramount significance. According to the producers, this product can deliver a 50% time saving because of quick treatment instances, decreasing the time required earlier than reaching the check bench. In addition, as a single-component adhesive, the product may be utilized utilizing both a gun or a brush, while offering low cost and easy removal. The adhesive is appropriate to be used on all types of pumps, including centrifugal, submersible, diaphragm, disc and double- jacket.
A manufacturer of cast iron gearboxes and geared motors reported that while the company was already using liquid gasketing on an adapter meeting flange, the ensuing poor seal was inflicting a 5% leakage rate, together with testing and manufacturing delays because of the adhesive’s slow cure fee.
After trialling alternative brands, the manufacturer found that a Loctite gasket sealant met all of its performance criteria. เกจวัดแรงอัดกระบอกสูบ fills the gaps between the flange surfaces and cures shortly in order that close-fitting parts can be instantly strain examined to 276 kPa (40 psi). Leaks are now a factor of the previous and disassembly is far easier.
Shaft alignment Another common issue with pumps is shaft misalignment. When shafts on rotating equipment are misaligned, the potential for expensive, unplanned machine downtime rises dramatically. Typical among the many outcomes is premature bearing failure.
A simple and cost-effective method to ensure and keep crucial shaft alignment is to fill the airspace with an appropriate liquid adhesive. This technique has the impact of resisting vibration, shock, thermal enlargement and contraction by unifying the assemblies. Such an approach maintains the clamp load and keeps bolts from loosening, which in flip ensures ongoing shaft alignment. Ultimately, pump customers can lengthen mean time between failures (MTBF) and luxuriate in full bearing life expectancy.
Thread locking An industrial maintenance/engineering companies facility that had points with shaft alignment for an electrical motor and centrifugal pump that provides water to the boiler of a commercial constructing. Previously, the loosening of mounting bolts was resulting in shaft misalignment and failures.
To overcome the issue, the maintenance specialist opted for a model new process. The company started cleaning the nuts and bolts using Loctite SF 7603, earlier than aligning the shaft with a laser and applying Loctite 290 to the threads prior to fastening at the correct torque. This answer is proving successful in sustaining alignment until the following scheduled maintenance (every three years).
Proven adhesive and sealant merchandise can be found to assist with a myriad of additional pump maintenance tasks. Retaining compounds, as an example, prevent bearings from fretting or spinning both on their shafts or within their housings. As one other example, numerous merchandise exist to assist stop corrosion or chemical attack.
Share