EMEC PRISMA 05 28 Stepper Motor Intelligent Digital Dosing Pump (28LPH/5BAR)

The EMEC PRISMA 05 28 is a high-capacity, digitally controlled stepper motor dosing pump that delivers precise chemical metering at flow rates up to 28 litres per hour at 5 BAR, making it ideal for larger-volume or high-throughput dosing applications where accuracy, reliability, and integration flexibility are essential.

Like all pumps in the Prisma series, the 05 28 uses a micro-stepper motor to provide ultra-precise, continuous flow with a massive 4800:1 turndown ratio. This allows smooth dosing across the entire range without pulsing or flow spikes, making it well-suited to flow-sensitive systems such as water treatment, food and beverage processing, and CIP chemical delivery.

This model comes equipped in the FP configuration:

• PVDF head for superior chemical resistance
• Viton (FKM) seals for compatibility with acids and oxidisers
• Ceramic (CE) check balls for durability and corrosion resistance
• Solid PTFE diaphragm for long-term, leak-free performance

Operators can program the pump through its intuitive multi-colour LCD display, which offers visual status indication (normal, warning, or alarm) and access to a wide range of programmable dosing modes:

• Constant dosing
• Pulse multiply/divide
• Batch dosing
• ppm or % concentration mode
• Analog (mA or voltage) control
• Water meter make-up dosing

The Prisma 05 28 also includes a float switch input on the foot valve to pause dosing automatically when chemical levels are low, helping to prevent pump damage or dry operation. An alarm relay is included, with MODBUS RTU communication available as an option for SCADA or BMS integration.

Installation is flexible: the pump can be wall-mounted or installed on a foot bracket or chemical drum lid (sold separately). The rugged IP65-rated enclosure makes it suitable for wet plant environments and outdoor cabinet installations.

FEATURES

• Max Flow Rate: 28 L/h
• Max Pressure: 5 BAR
• Turndown Ratio: 4800:1
• Pump Head: PVDF
• Seals: Viton (FKM)
• Check Valves: Ceramic (CE) balls
• Diaphragm: Solid PTFE
• Control Interface: Backlit multi-colour LCD
• Inputs: 4–20mA, pulse, level float, standby contact, water meter pulses
• Outputs: Alarm relay + optional MODBUS RTU
• Installation: Wall-mount or foot bracket (optional)
• Enclosure: IP65
• Max Viscosity: 100 cps (600 cps with SS balls; LPV models: 8000 cps)
• Power Supply: 230V AC
  

SUPPLIED WITH

• Foot valve with level float
• Injection valve
• 2 m suction and discharge tubing (typically 8x12 mm for 28 LPH model)
• Mounting hardware
• User manual

APPLICATIONS

• High-volume sodium hypochlorite dosing in water treatment
• Flocculant and coagulant feed in wastewater systems
• Acid and chlorine injection for pH or disinfection control
• CIP chemical supply in food, beverage, and dairy plants
• Nutrient dosing and fertigation in agricultural setups
• Batch processing and chemical makeup for industrial processes

SPECIFICATIONS