Aquarius®I Deionized (DI) Water Heater

Aquarius®I Deionized (DI) Water Heater

The Aquarius® I Deionized (DI) Water Heater is the perfect solution for high-flow DI water applications. The all-PVDF/PFA wetted surfaces featured in the Aquarius I keep DI water pure throughout the heating process. The patented Power-to-Flow Control® Plus feature found in the Aquarius provides the most accurate temperature control available in a DI water heating system, and eliminates undesirable overshoots or drops in temperature due to inadequate PID controllers. The Aquarius I system is engineered to deliver high flows of continuous, at-temperature, hot DI water. With models from 30kW to 200kW available,the Aquarius I system provides an operational cost savings by reducing the need for multiple heaters.



Designed for fast and easy installation, the entirely self-contained Aquarius® series heating systems help users save time and money during implementation. All the user has to do to start heating is to move the system into place, connect the plumbing and electrical, and turn on the power.

  • Ultra-Pure Fluid Path
  • Precise Temperature Control
  • Ease of Installation
  • N2 Not Required


  • Point-of-Use, One-Pass, Ultra-Pure Deionized Water Heating
  • Fully Integrated Microprocessor Control and Safety System
  • Dual-Digital Readout for All Internal and Output Functions
  • Low-Voltage (24 VAC), Operator-Safe Control Panel
  • PVDF and PFA Wetted Surfaces on Hot Deionized Water Side (All PFA Available)
  • 10′ Umbilical Between Heater Box and Control Box
  • Flow Range of 0.5 GPM to 10.0 GPM
  • Models from 30kW to 200kW
  • All Chemraz® O-Rings
  • Fusion-Welded Fittings with Weld Bead Cover (Patent No. 8,349,122)

Safety Interlocks

  • Over-Temperature Safety Interlock on Each Heater
  • Power-to-Flow Control® Safety Interlock
  • Liquid-Level Safety Interlock
  • Minimum-Flow Safety Interlock
  • Process High-Limit Safety Interlock
  • Sensor Failure/Disconnect Safety Interlock
  • Emergency-Off-Button Safety Interlock


Standard Voltages: (380 – 480 VAC, 3 Phase)

Model No. kW Dimensions
(H x W x D)
Incoming Power
Conduit Size
GDI930-2 30 76″ x 24″ x 24″ 1″
GDI960-2 60 76″ x 24″ x 24″ 2″
GDI990-2 90 76″ x 32″ x 24″ 2″
GDI9120-2 120 76″ x 32″ x 24″ 2″
GDI9140-2 140 76″ x 32″ x 24″ 3″
GDI9160-2 160 76″ x 32″ x 24″ 3″
GDI9200-2 200 76″ x 39″ x 24″ 3″

Available options

  • Resistivity Sensor
  • Auto Purge
  • Hot Filtration (PVDF Module with Polysulfone Filter, 0.2 Micron)
  • Enable Remote EMO
  • Ground Fault Circuit Interrupter