BSF

Significantly Reduced Installation Space

• A compact unit integrating all required devices, reducing installation space to 53–66% compared to conventional products.

Stainless Steel Filtration Tank

• Filtration tank made of SUS304 for superior corrosion resistance and durability.
• Maximum working pressure up to 0.49 MPa.

High-Performance Silica Sand Filter Media

• Special abrasion-resistant silica sand removes solids larger than 10 μm.

Extensive Integrated Control Functions

• Controls chemical injection pump, heat exchanger circulation pump, and auxiliary water supply electric valve.
• No additional control panel required.

Standard Anti-Freezing Control

• Uses bath water circulation to prevent freezing inside the equipment.

Standard Dry-Run Prevention

• Automatically stops operation to prevent equipment damage if bath water is drained, even without a water level gauge.

Preparatory Operation for Bathing

• Controls bath water temperature according to the scheduled bathing start time.
• Allows easy and economical operation start time setting.

Operation History Display

• Displays accumulated pump operating time.
• Shows number of pump startups.
• Stores up to five recent filter failure records for quick maintenance response.

Timer-Controlled Chemical Injection

• Enables precise timer-based control of the chemical injection pump.

Makeup Water Supply Control

• Allows controlled water replenishment and forced drainage of surface contaminants.

Interlocking Terminal (Voltage-Free a-Contact × 3)

• Useful for interlocking with jet bath or air bubble bath pumps.

Remote Control Capability

• Optional remote control panel enables operation and management from a remote control room.

Abnormal Discharge Pressure Detection

• Automatically detects abnormal discharge pressure in the bathtub or piping system and stops operation.

Remote Emergency Stop

• Allows emergency stop from the bathroom via remote control.

Automatic Residual Chlorine Control (Optional)

• Automatically adjusts residual chlorine concentration to compensate for fluctuations in the number of bathers.