ROC pH/ORP-5500 series pH ORP online transmitting controller
This series instruments are widely used for online pH/ORP monitoring in environment protection water treatment, pure water treatment, industrial process and so on.


This series instruments are widely used for online pH/ORP monitoring in environment protection water treatment, pure water treatment, industrial process and so on.


One kind of popular and cost-effective online pH/ORP controller.


Multiplex display, display window with free configuration of 2/4 parameters;
Support bus data acquisition of 1-4 channels with arbitrary attributes;
Support 1 way two-wire system 4-20mA variable input;
Support WiFi and LORA and other wireless data acquisition;
The 3-way control output can be configured with the over-limit alarm or DI associated output of any measurement channel.
Fully sealed, wall-mounted shell, according with site protective capability of IP65 protection type.
With CE certification


Time-tested hydraulically balanced piston, seal and spacer design to pilot service flow and regeneration
Solid, lead-free brass valve body for superior strength and durability
Backwash capacity handles tanks up to 30″ diameter
1-1/2″ top mount control valve ideal for smaller size commercial/industrial applications
Consistent brining regardless of salt levels with timed brine refills
Choice of 7 or 12 day clock, manual or meter
Continuous flow rate of 51 GPM with a backwash of 49 GPM


Suitable for large residential/light commercial applications
Fully adjustable, 5-cycle control delivers controlled upflow backwash, downflow brining and slow rinse, rapid rinse, timed brine refill and downflow service
Backwash capacity handles tanks up to 24″ diameter
Mechanical control (7- or 12-day clock or metered initiated regeneration)
Valve body is solid, lead-free brass
Time tested, hydraulically-balanced piston, seal, and spacer concept to pilot service flow and regeneration


Fluorescence quenching principle, no need for internal filling, no oxygen consumption, and easy maintenance;
The service life of the fluorescent membrane cap is more than one year (under ideal conditions);
Original altitude, atmospheric oxygen partial pressure, temperature compensation, to improve the authenticity of the data;


FLECK control valve 5600 softening water equipment generally uses fixed bed downstream
regeneration, the working process is operation, backwashing, regeneration, replacement,
positive washing, salt tank water injection.


“One Dynamic and Two Static” Double Static Ceramics Plates Multi-port Valve is on behalf of another beginning in the field of water treatment control, which can overcome many disadvantages of traditional products in installation.


Widely used for electric power,electronics,metallurgy,petrochemical,pharmaceutical ,food and beverage,environmental protection field.