Heavy-Duty Performance Redefined: Discover Koshin PBX, PB & PX Submersible Pumps
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Koshin continues to set the benchmark in professional drainage solutions with the PBX, PB, PX and PXL Series submersible pumps. Engineered in Japan and designed for demanding environments, these pumps combine durability, high performance, and intelligent motor protection for construction sites, flood control, irrigation, and residential drainage applications.
Heavy-Duty Contractor Performance – PBX Series
The PBX / PBX7 Series are powerful contractor-grade submersible pumps suitable for dry-running and sandy water applications. With delivery capacities up to 330 L/min and heads up to 16 m, these pumps are ideal for construction dewatering, excavation pits, and flood response.
Key advantages include:
Air valve function for safe dry-running operation
High starting torque (up to 4× conventional models)
Abrasion-resistant components for muddy and sandy water
Dual-direction delivery flange (2-way flange system)
Optional automatic float switch
Easy maintenance and protected internal components
Designed for professional use, the PBX Series ensures extended service life and reduced downtime on demanding job sites.
PB-55022 Heavy Duty Pump – Reliable & Endurance-Focused
The PB-55022 model features:
50 mm (2") outlet
Max. head: 10 m
Max. flow: 290 L/min
400 W output, 2900 rpm induction motor
Cast iron impeller and robust SPC casing
Effective motor cooling system (outer wall water channeling)
This model is particularly suitable for construction sites, flooded areas, ponds, and pools.
The advanced motor cooling system ensures maximum endurance during extended operation.
PX & PXL Series – Light Use & Residual Water Solutions
For irrigation, underground drainage, home applications, and residual water removal, the PX-55022 and PXL-52522 provide compact, efficient performance:
PX-55022: 260 L/min, 50 mm outlet
PXL-52522: 120 L/min, 25 mm outlet
Thermal protector for motor safety
Aluminium die-cast casing
Polyurethane impeller
Lightweight design (11–12.7 kg)
Invertible delivery flange for flexible installation PB-PX_Leaf_GrA4_0812tx
The PXL model is optimized for removing residual water down to minimal levels, making it ideal for swimming pools, roof tanks, and basement drainage.
Why Choose Koshin Submersible Pumps?
Japanese engineering quality
Durable materials for abrasive environments
Thermal overload protection
High starting torque
Energy-efficient performance
Easy maintenance design
Suitable for construction dewatering, flood control, irrigation, ponds, pools, and residential drainage
Whether you need a heavy-duty contractor pump or a compact residual water solution, the Koshin PBX, PB, and PX Series offer proven performance in real-world conditions.
Upgrade Your Dewatering Equipment Today
Choose reliability. Choose durability. Choose performance.
Explore the full range of Koshin submersible pumps and secure the right model for your project today. Order now and equip your site with professional-grade Japanese pumping technology.
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