Pumps, aerators, clarifier drives, blowers and screens in water and sewage treatment plants run around the clock in wet, corrosive conditions, usually with a small maintenance team.
Water and wastewater plants are wet by definition. Pump bearings sit in humid pump houses, surface aerators throw spray over their own gearboxes, clarifier drives turn slowly under high torque for years, and blowers run continuously to keep the biological process alive. Hydrogen sulphide and chlorine attack exposed metal. Water-resistant greases, well-sealed gear oils and correctly tensioned belts prevent most of the failures these plants see.
Banesto supplies EP and synthetic gear oils for aerators and clarifier drives, water-resistant and long-life bearing greases, biodegradable lubricants for points near open water, and Beltone V-belts for blowers and pumps.
Selected from our 852+ SKU range for the duty cycles most common in water and wastewater plants. Every recommendation is matched by application (temperature, load, speed and exposure), not by catalogue number. Where the equipment maker specifies a grade, the maker's specification comes first.
Need specifications? Full technical data sheets are available for every grade.
View Product Datasheets →A starting point for your lubrication schedule, point by point.
| Equipment | Lubrication point | Banesto product | Good practice |
|---|---|---|---|
| Surface aerators | Gearbox | Industrial Gear Oil ISO VG 220 EP or PAO Synthetic Gear Oil, grade as per the maker | Check for water in the oil; keep breathers dry. |
| Clarifier and thickener drives | Worm or planetary gears, slewing bearing | Gear oil of the maker's grade; PAO Synthetic Gear Oil for long intervals | Check oil level and condition at every PM. |
| Raw water and sewage pumps | Pump bearings | Ca-Sulfonate Complex HT Grease | Re-grease after any flooding of the pump house. |
| Pump and blower motors | Motor bearings | Polyurea Long-Life Bearing Grease | Follow the motor plate; do not over-grease. |
| Air blowers | Gear and bearing housings | Oil of the blower maker's grade | Check the oil level daily; change at the maker's interval. |
| Screens, conveyors, sludge handling | Chains and bearings | Chain & Wire Rope Lubricant; Ca-Sulfonate grease on bearings | Clean grit off chains before lubricating. |
| Gates and valves over water | Spindles, chains | Biodegradable Eco-Lubricant | Use the same product consistently at each point. |
| Blowers and pumps | Belt drives | Beltone wedge or classical belts | Re-tension after the first 24 hours; replace as sets. |
Most use an EP industrial gear oil of ISO VG 220 or 320, as specified by the gearbox maker. Synthetic PAO oil extends oil life and runs cooler in hot climates. Because of spray and humidity, good water separation is essential.
Calcium sulfonate complex grease resists water wash-out and rust far better than ordinary lithium grease. For electric motor bearings, a polyurea grease is the usual choice.
They are a sensible choice wherever a leak could reach open water or soil: gates, valves and equipment over channels. Check your plant's environmental requirements.
Check tension with a gauge after the first day of running and then regularly, keep pulleys aligned, and replace all belts on a drive together. Our V-belt tension guide gives the method.
Operating a water treatment plant, STP or ETP? Send us the list of pumps, aerators, blowers and drives, and we will build a lubrication schedule your team can follow.