Gravimetric monobloc dosers

 Meniscus doser (floating head)

 

They are used to dose a liquid reagent where there is no electric power. 
The dosage is carried out by means of gravity (or fall). They are particularly used to dose sodium hypo-chloride solutions, in disinfecting treatments also for potable use, in small rural and mountain aqueducts, where the water to be treated flows out under atmospheric pressure, or with a jump (height difference), where there is no electric power as it sometimes happens in capture works of sources.

Due to their simplicity, they do not require particularly trained personnel for their installation and starting-up.

We propose three solutions (see pictures):  

1. Meniscus-doser (floating head)

   Without chokes, it is based on the surface tension principle.

   Main generalities:

   1.  It does not need electric power

   2. Suitable for practically constant flows under atmospheric pressure

   3. Total absence of mechanical moving parts

   4. It does not require maintenance

   5. Entirely plastic-made

   6. It can be assembled by any plumber

2. Choke-doser

   Main generalities: 

   1. It does not need electric power

   2. Suitable for practically constant flows under atmospheric pressure

   3. It measures the delivery of the solution

   4. It guarantees an unlimited reliability in use

   5. Entirely plastic-made

   6. It can be assembled by any plumber

 

3. Proportional drive-out siphon doser 
   

   Main generalities: 

   1. It requires a water jump of at least 1,1 Mt.

   2. It does not require electric power

   3. Suitable for variable flows

   4. It effects a dosage in proportion to the quantity of water to be treated

   5. Total absence of mechanical moving parts

   6. It guarantees an unlimited reliability in use

   7. It does not require maintenance

   8. Entirely plastic-made

   9. It can be assembled by any plumber

Choke doser

Proportional doser with discharge siphon