Reducing maintenance with liquid gaskets

Adopting a proactive maintenance strategy is key to eliminating common failures modes and extending the useful lifetime of pumps, which is why liquid flange gaskets and thread locking adhesives can supply important advantages over typical compression gaskets.
In today’s fast-moving, continually evolving industrial panorama, pump downtime can be extremely costly in lost output, notably where the pump has a production-critical position. For this reason, these operating in processing sectors similar to paper, power generation, chemicals, sugar, mining and oil and gas, will know all concerning the pressures that come with pump upkeep.
Conventional pre-cut compression gaskets are prone to long-standing issues like shrinkage, relaxation, extrusion and breakage, all of which may promote leaks between the bearing frame and adapter, or between the stuffing box and pump casing, for instance. One means ahead is to fully 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 components to create a perfect seal, whereas concurrently eliminating flange face corrosion.
MRO workshops Among these capable of benefit are maintenance, repair and operations (MRO) workshops, the place any liquid gasketing product needs to be quick and reliable, yet simple to dismantle for additional upkeep activities. In addition, the product should allow straightforward application and supply decrease costs than conventional gaskets and slow-curing chemical solutions.
Loctite 518 a methacrylate-based gasketing product that’s sutiable where low strength is of paramount significance. According to the manufacturers, this product can deliver a 50% time saving thanks to fast cure times, lowering the time required earlier than reaching the take a look at bench. In addition, as a single-component adhesive, the product may be applied using both a gun or a brush, whereas providing low price and easy removal. The adhesive is appropriate to be used on all kinds of pumps, together with centrifugal, submersible, diaphragm, disc and double- jacket.
A producer of cast iron gearboxes and geared motors reported that whereas the company was already utilizing liquid gasketing on an adapter meeting flange, the ensuing poor seal was causing a 5% leakage price, along with testing and production delays as a result of adhesive’s slow cure rate.
After trialling various brands, the manufacturer discovered that a Loctite gasket sealant met all of its performance criteria. The product fills the gaps between the flange surfaces and cures quickly so that close-fitting elements can be immediately pressure examined to 276 kPa (40 psi). Leaks are actually a thing of the previous and disassembly is way simpler.
Be the first with pumps is shaft misalignment. When shafts on rotating gear are misaligned, the potential for pricey, unplanned machine downtime rises dramatically. Typical among the outcomes is untimely bearing failure.
A easy and cost-effective means to make sure and keep critical shaft alignment is to fill the airspace with an acceptable liquid adhesive. This strategy 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 extend mean time between failures (MTBF) and enjoy full bearing life expectancy.
Thread locking An industrial maintenance/engineering services facility that had issues with shaft alignment for an electrical motor and centrifugal pump that supplies water to the boiler of a industrial 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 course of. The firm started cleaning the nuts and bolts using Loctite SF 7603, before aligning the shaft with a laser and applying Loctite 290 to the threads prior to fastening on the proper torque. This solution is proving successful in maintaining alignment till the following scheduled maintenance (every three years).
Proven adhesive and sealant merchandise can be found to help with a myriad of additional pump upkeep tasks. Retaining compounds, for example, forestall bearings from fretting or spinning both on their shafts or inside their housings. As another instance, quite a few merchandise exist to assist prevent corrosion or chemical assault.
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