Calpeda MXHL EI 404 Three Phase 0.75kW Variable Speed Single Pump Multistage Booster Set with I-MAT Converter

Civic council amenities and local administrative buildings ensure steady plumbing delivery with the Calpeda MXHL EI 404 booster set. Built with 1 x Calpeda MXHL 404 multistage pump assemblies, the package delivers a maximum volumetric flow rate of 133 L/min to overcome sudden demand spikes across commercial pipework. The hydraulic wet ends produce a maximum shut-off head of 40.5 metres to maintain constant vertical static elevation without line starvation.

Under maximum facility draw, total boosted discharge from the single unit sustains up to 133 L/min. System regulation is controlled by an integrated motor-mounted I-MAT variable frequency drive. The pump dynamically adjusts its operating frequency to match instantaneous draw-off rates, eliminating mechanical water hammer and destructive line pressure surges. A factory-plumbed 18 L membrane pressure vessel dampens transient micro-fluctuations, while digital pressure transducers provide real-time line feedback to protect against dry running.

The entire pumping assembly is precision-mounted upon a rigid base frame. Hydraulic construction utilizes premium 316L Stainless Steel impellers, stage chambers, and pump casings for superior corrosion resistance and longevity. The 4-stage hydraulic stacks connect into common manifolds featuring a 32 mm suction port and a 25 mm delivery connection. Each individual pump line incorporates dedicated nickel-plated brass shut-off ball valves and non-return check valves mounted on a vibration-dampened S235JR steel baseplate.

The single pump is driven by a robust commercial induction motor built to international IEC standards. Operating with a full-load current rating of 2 Amps, the TEFC motor configuration incorporates IP54 ingress protection and Class F thermal winding insulation. The package is rated for continuous fluid temperatures from -15°C to +110°C and ambient plant room environments up to 40°C. Manufactured to strict European standards, the entire variable-speed booster system is backed by a comprehensive 24 Months manufacturer warranty.

Key Features

• Advanced I-MAT variable speed drives provide smooth soft-start and soft-stop acceleration to safeguard downstream mechanical pipework.
• The single-pump hydraulic assembly provides dependable clean water discharge capacity reaching up to 133 L/min.
• Developing maximum pressure heads up to 40.5 metres, the system guarantees strong, consistent fixture spray force.
• Heavy-duty AISI 316L chromium-nickel-molybdenum stainless steel metallurgy ensures exceptional resistance against aggressive or treated water supplies.
• The delivery header includes an 18 L membrane expansion vessel to suppress hydraulic shock and minimize unnecessary cycling.
• Precision-machined 32 mm suction and 25 mm discharge ports allow clean, direct coupling to facility pipework.
• High-efficiency commercial electric motors run at 2900 rpm on 400V 50 Hz mains, drawing an absorbed current of 2 Amps.
• Verified operating limits safely tolerate fluid temperatures from -15°C to +110°C in plant room ambient conditions up to 40°C.
• The compact booster package is rigidly mounted on a vibration-isolated zinc-plated structural steel baseplate (S235JR).
• The complete factory-assembled booster package is backed by a 24-month manufacturer warranty.

What's Included

• 1 x Calpeda MXHL 404 horizontal multistage pump
• 1 x Motor-mounted I-MAT variable frequency inverter drive
• 1 x Common AISI 304 stainless steel suction manifold with isolation valves (32 mm)
• 1 x Common AISI 304 stainless steel discharge manifold with check valves (25 mm)
• 1 x Factory-mounted 18 L membrane pressure vessel on delivery header
• 2 x Digital electronic pressure transducers with M12 connection cabling
• 1 x Heavy-duty zinc-plated structural steel mounting baseplate (S235JR)