EMEC PRISMA 04 50 Stepper Motor Intelligent Digital Dosing Pump (50LPH/4BAR)

The EMEC PRISMA 04 50 is a high-flow, intelligent dosing pump equipped with a digital stepper motor designed for continuous, ultra-precise chemical injection at volumes up to 50 litres per hour at 4 BAR. Built to handle large-scale water treatment and industrial dosing applications, this model delivers consistent, pulse-free flow ideal for flow-sensitive systems and critical chemical delivery.

As part of the EMEC Prisma range, the 04 50 features a micro-stepping motor drive with 4800:1 turndown, enabling extremely low-flow operation without sacrificing accuracy. This ultra-wide operating range makes it perfectly suited for both high-volume and fine-dose applications in a single unit.

This FP-configured model comes with a PVDF pump head, Viton (FKM) seals, and ceramic check balls, offering exceptional resistance to oxidising chemicals such as sodium hypochlorite, chlorine dioxide, and a wide variety of acids. The solid PTFE diaphragm ensures long-term performance under demanding, continuous-duty conditions.

The intuitive multi-colour LCD interface offers full access to all operating modes and provides clear visual alerts for normal operation, warnings, and alarms. Programming is quick and flexible across multiple dosing modes:

• Constant
• Pulse multiply/divide
• Batch
• PPM or percentage-based control
• Analog via 0–10V or 4–20 mA
• Water meter pulse (make-up)

A low-level float input (via foot valve) stops dosing when chemical levels drop, while a programmable alarm relay and optional MODBUS RTU output make it easy to integrate into control systems.

With flexible wall or base mounting options and an IP65-rated housing, the Prisma 04 50 is ready for installation in industrial environments, treatment plants, or enclosed cabinets.

FEATURES

• Max Flow: 50 L/h
• Max Pressure: 4 BAR
• Turndown Ratio: 4800:1
• Pump Head: PVDF
• Seals: Viton (FKM)
• Check Valves: Ceramic (CE) balls
• Diaphragm: Solid PTFE
• Display: Multi-language LCD with colour-coded operation modes
• Inputs:
  • 4–20 mA / 0–10V analog
  • Pulse
  • Level float switch
  • Standby/dry contact
  • Water meter pulses
• Outputs:
  • Alarm relay
  • Optional MODBUS RTU (RS485)
• Mounting: Wall mount or drum-top bracket
• Enclosure: IP65
• Power Supply: 230 VAC
• Max Viscosity: 100 cps (up to 8000 cps with LPV version)
  

SUPPLIED WITH

• Foot valve with level float
• Injection valve
• Suction and discharge tubing (typically 8x12 mm)
• Mounting hardware
• User manual

APPLICATIONS

• High-volume chlorine, acid, or alkali dosing in water treatment
• Coagulant and flocculant feed systems
• Cooling tower and boiler chemical injection
• Nutrient and additive dosing in fertigation or hydroponics
• Industrial batching, CIP, or rinse water chemical supply
• Process chemical dosing requiring ripple-free, continuous feed

SPECIFICATIONS