Stainless Centrifugal Pump 550 L/min 20.8m — 4CAX 40-250A
ULTRA-EFFICIENT CONTINUOUS FLOW: Engineered with a precision 1450 RPM 4-pole hydraulic design, delivering a massive fluid transfer of up to 550 L/min and a powerful pressure head reaching 20.8 meters for uninterrupted performance.
MAXIMUM ENERGY SAVINGS & LOW RUNNING COSTS: Powered by a heavy-duty 2.2 kW (3 HP) IE3 premium electric motor (MOT100L frame). Designed to slash electricity bills during demanding 24/7 continuous operations.
WHISPER-QUIET & VIBRATION-FREE OPERATION: The slow-speed 1450 RPM rotation significantly reduces mechanical wear and noise, ensuring an exceptionally long service life perfectly suited for Chemical Plants.
100% RUST-FREE STAINLESS STEEL DURABILITY: Built to handle aggressive liquids and high-purity water systems. Features a premium all-AISI 316 stainless steel pump body, motor bracket, impeller, and shaft for ultimate corrosion resistance.
READY-TO-INSTALL TURNKEY SYSTEM: Arrives fully pre-assembled on a rugged steel baseplate complete with a flexible drive coupling and safety guard. Operates flawlessly at pressures up to 10 bar and extreme temperatures from -10°C to +90°C.
Product information
The Pentax 4CAX40-250A+MOT100L is a complete, factory-assembled low-speed industrial centrifugal pump unit constructed entirely from AISI 316 stainless steel in strict compliance with EN 733 European standards. Built for continuous circulation in chemical plants, commercial HVAC heating/cooling loops, chemical processing, food and beverage plants, and water treatment systems, it emphasizes whisper-quiet operation and acid-resistant durability.
Driven by a 4-pole IE3 high-efficiency 3 HP 2.2kW electric motor (MOT100L frame) operating at 1450 RPM, the assembly delivers a maximum flow rate up to 550 L/min with a powerful pressure head reaching 20.8 meters. The complete unit is precision-mounted on a heavy-duty steel baseplate connected via a flexible shaft coupling with a safety guard to prevent shaft stress.
Built to withstand aggressive fluids and continuous wear, the pump features a full AISI 316 stainless steel hydraulic assembly (pump body, bracket, impeller, and shaft end) and a 20 mm ceramic-graphite-NBR mechanical seal. Handling fluid temperatures from -10°C to +90°C at operating pressures up to 10 bar, the Pentax 4CAX+MOTOR series supports customizable options such as AISI 316 counter-flange kits and traditional gland packing seals.
Sealing Options (Mechanical Seal vs. Gland Packing):
Mechanical Seal (Standard - Ceramic-Graphite/NBR): Best for clean water, chemical liquids, and food processing. Provides a 100% drip-free, zero-leak seal that requires zero routine adjustment.
Gland Packing (Optional Upgrade): Best for dirty water, sandy fluids, or abrasive technical liquids. Uses traditional braided packing glands that tolerate particle wear and can be easily tightened or repacked directly on-site without opening the pump.
Note: Fully assembled turnkey unit on baseplate with 4-pole IE3 motor, flexible coupling, and coupling guard included.
Features & Specs
Model Complete Unit 4CAX40-250A+MOT100L
Pump Type All-AISI 316 4-Pole (1450 RPM) Baseplate-Mounted Centrifugal EN 733 Pump Unit
Motor Power 3 HP / 2.2kW
Motor Frame / Efficiency Class MOT100L Frame / IE3 Premium High Efficiency (4-Pole)
Motor Speed ~1450 RPM (4-Pole)
Voltage / Frequency 3~ 230/400V - 50Hz
Max Flow Rate (Q max) 550 L/min (33 m³/h)
Max Lift Head (H max) 20.8meters
Mechanical Seal Diameter 20 mm Hydraulic Standard Compliance with EN 733 Standards
Operating Pressure Max 10 bar Liquid Temperature Range -10 °C to +90 °C Pump Body / Bracket Material Stainless Steel AISI 316
Pump Shaft End / Impeller Material Stainless Steel AISI 316 / Stainless Steel AISI 316
Standard Sealing Ceramic-Graphite-NBR (Optional: Gland Packing)
Assembly Components Steel Baseplate, Flexible Coupling, Coupling Guard, IE3 4-Pole Motor
Optional Accessories AISI 316 Counter-flange kit, Gland Packing Seal
Dimensions
Model 4CAX40-250A+MOT100L Product Dimensions (cm) 89.1 x 31.6 x 42.4 cm Pump Weight (kg) 63 kg Motor Weight (kg) 42 kg Total Weight (kg) 119 kg