EN
6
| BL220 PERISTALTIC PUMPS
It is recommended to place the tank of the product to be dosed below the pump, without
exceeding the maximum suction height (approx. 1.5 m). If the system is installed below the level of
the liquid, periodically check the status of the injection valve. If dosing a liquid that gives off fumes,
make sure the tank is sealed.
HYDRAULIC CONNECTIONS
Suction line (also see drawing)
1. Unscrew the fixing nut of the suction fitting located at the bottom left of the
pump body, marked with the entering arrow.
2. Cut the PVC Crystal tube and insert the tube fixing nut onto the tube.
3. Mount the tube on the conic hose of the suction fitting, pushing it to reach
the stop collar.
4. Secure the tube by screwing the tube fixing nut on the suction fitting of the
pump body.
5. Place the tube inside the tank and/or the suction lance.
6. Unscrew the tube fixing nut of the foot filter fitting.
7. Cut the PVC Crystal tube and insert the tube fixing nut onto the tube.
8. Mount the tube on the conic hose of the foot filter, pushing it to reach the stop collar.
9. Secure the tube by screwing the tube fixing nut on the foot filter fitting.
10. Screw the foot filter on the suction lance and/or place it in its working site.
Place the foot filter at a minimum distance of 5 cm from the tank bottom. If a dense
product is dosed, it is advisable to remove the internal filter, in order to facilitate the
aspiration.
Injection line (also see drawing)
1. Unscrew the fixing nut of the injection fitting located at the bottom left of the pump body,
marked with the exiting arrow.
2. Cut the PVC Crystal tube and insert the tube fixing nut onto the tube.
3. Mount the tube on the conic hose of the injection fitting, pushing it to reach the stop collar.
4. Secure the tube by screwing the tube fixing nut on the injection fitting of the pump body.
5. Apply at the injection point of the pipeline a 1/2” GAS fitting, internally threaded (not supplied).
6. Garnish the thread with PTFE tape and screw the injection valve on the fitting.
7. Unscrew the tube fixing nut of the injection valve fitting.
8. Cut the PVC Crystal tube and insert the tube fixing nut onto the tube.
9. Mount the tube on the conic hose of the injection valve, pushing it to reach the stop collar.
10. Secure the tube by screwing the tube fixing nut on the valve fitting.
The injection valve also work sas non-return valve. Never disassemble it internally.
