Double Tank Control Valves

Double Tank Control Valves

RF Series & ZR Series

ChiMay double tank control valves are designed for continuous water production with alternating regeneration, ideal for high-hardness water softening applications including steam boiler systems, heating supply systems, and industrial process systems.

Key Features

● Floating bed ion exchange with counter-current regeneration;

● Dual tank alternating continuous water production;

● Microcomputer flat valve with ceramic wear-free seal;

● Works normally under low source pressure (0.05 MPa);

● Dual mode of meter/timer with low salt consumption;

● Humanized LCD screen with English operation interface;

● Power failure and water stop memory function.

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RF Series - Floating Bed Softening Valves

The RF Twin-Tank Floating Bed Planar Multiport Valve enables simultaneous water production and alternating regeneration. Integrates brine draw jet, brine flow meter, brine solenoid valve, and softened water flow meter.

RF20 Double Tank Valve

Maximum Production Capacity: 25 m³/h

The RF20 integrates a brine draw jet, brine flow meter, and brine solenoid valve, along with a softened water flow meter, ensuring softening, brine draw, and brine tank replenishment are completed according to set water volumes.

  • Includes softened water level control contact inputs
  • 485 communication interface
  • External control input interfaces
  • Suitable for softening high-hardness water

RF50 Double Tank Valve

Maximum Production Capacity: 60 m³/h

The RF50 offers higher capacity for larger industrial applications. Once operating parameters are preset during factory calibration based on raw water hardness, the equipment ensures stable operation and consistent water quality.

  • Dual safeguard for brine tank replenishment
  • Optimized salt consumption
  • Stable softened water quality
  • 485 communication interface

ZR Series - Dual-Vessel Floating Bed Valves

The ZR dual-vessel floating bed control valve integrates externally mounted inlet and discharge flow meters, enabling flow-based parameter configuration for all operational stages. Stable water quality with constant pressure output.

ZR4-1 Double Tank Valve

During regeneration or cleaning cycles, the system closes the water output and continues regeneration until the control valve resets to "Softening" position. Alternating regeneration ensures uninterrupted water production.

  • Available in ZR4-1 and ZR4-1S configurations
  • Externally mounted inlet and discharge flow meters
  • Flow-based parameter configuration
  • Ideal for steam boiler systems

ZR10 Double Tank Valve

Higher capacity version of the ZR series for larger industrial applications. Optimized for high-hardness water softening in heating supply systems and industrial process systems.

  • Available in ZR10 and ZR10S configurations
  • Constant pressure output
  • Stable water quality
  • Heating supply system applications

Specifications Comparison

Model RF20 RF50 ZR4-1 ZR10
Max. Production Capacity 25 m³/h 60 m³/h - -
Valve Type Double Tank Softening Double Tank Softening Double Tank Softening Double Tank Softening
Process Floating Bed Floating Bed Floating Bed Floating Bed
Regeneration Counter-current Counter-current Counter-current Counter-current
Seal Type Ceramic Wear-free Ceramic Wear-free Ceramic Wear-free Ceramic Wear-free
Min. Source Pressure 0.05 MPa 0.05 MPa 0.05 MPa 0.05 MPa
Operating Mode Meter/Timer Dual Meter/Timer Dual Meter/Timer Dual Meter/Timer Dual
Display LCD English LCD English LCD English LCD English
Communication RS-485 RS-485 RS-485 RS-485
Memory Function Power/Water Stop Power/Water Stop Power/Water Stop Power/Water Stop

Applications

Steam Boiler Systems

Ideal for high-hardness water softening in steam boiler feed water treatment.

Heating Supply Systems

Continuous water production for district heating and industrial heating applications.

Industrial Process Systems

Reliable softening for manufacturing and process water requirements.

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