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In the complex process of municipal and industrial wastewater management, the preliminary filtration phase is the first line of defense for downstream machinery. Kairun Pump designs and manufactures heavy-duty, zero-energy preliminary screening systems and water-control accessories. By capturing large floating debris, plastics, and fibrous waste before they enter pumps and piping, our solutions prevent costly blockages and protect high-value capital equipment. We focus on structural simplicity, passive gravity-driven separation, and low-maintenance designs to lower your overall operational costs.
We specialize in passive and structural pretreatment solutions for water management facilities:
PG/PW Flat Screens: Static bar grilles designed to passively separate large solid waste from raw wastewater in intake channels without requiring mechanical power.
Trash Racks & Bar Screens: Heavy-walled steel grids that prevent logs, branches, and large refuse from entering municipal drainage and water diversion channels.
Flow Control Sluice Gates: Sturdy slide gates engineered to regulate fluid intake, isolate specific treatment basins, and manage hydraulic flow.
Zero Energy Consumption: Operating strictly through gravitational flow, our PG and PW series flat screens require no electrical motors, gearboxes, or power supply.
Exceptional Structural Durability: Fabricated from corrosion-resistant carbon steel or premium stainless steel (SS304/SS316) to ensure long-term stability in aggressive sewer gases and chemical effluents.
Low Maintenance Design: With no moving mechanical parts, our passive screens eliminate mechanical wear-and-tear, drastically reducing routine maintenance expenses and spare parts demand.
A: PG and PW flat screens are static, non-mechanical bar screens installed vertically or at an angle in water inlet channels. They operate passively, relying on the natural gravity flow of wastewater to push solids against the steel bars. Liquids pass through the gaps while larger solids are retained on the surface for manual or mechanical raking.
A: Static flat screens are widely utilized in municipal sewage treatment plants as primary grilles. They are also highly effective for industrial wastewater pretreatment in sectors like pulp and paper, food and beverage processing, and textile manufacturing to filter fibers, vegetable skins, and processing residues.
A: Yes. For chemical processing, industrial wastewater, or maritime applications, we construct our filtration screens and gates from marine-grade stainless steel (such as SS316 or SS316L) and apply chemical-resistant epoxy coatings to protect the steel frame from premature degradation.