Chemical dosing ...

  Company profile
  Plant & equipment
  Legionnaires' disease 
  Contact us

Dosing Pots

Chemical dosing pot
Simple to use and reliable
Cost effective
6, 11 and 18 litre sizes
Class 2 all welded construction to BSEN 286 Pt1
Rated to 14 bar
Tested to 21 bar & Lloyds registered
Supplied complete with all valves
Closed re-circulating water systems (chilled or hot water) can be simply dosed on a regular / manual basis by use of these dosing pots. Fitted across flow and return lines, they provide a means to annex a portion of the system water which can be drained away and replaced with the chemical to be dosed. When re-connected to the system, the chemical is flushed through.

The dosing pots are fitted with large 1" valves, which ensure quick and easy action of the pot even in low flow/pressure conditions. An air vent valve enables the pot to be purged during filling thus eliminating undesirable air ingress to the system. An optional swing check valve is available fitted into the fill line below the tundish.

The dosing pot should be fitted by a specialist pipe fitter and securely mounted via it's fixing brackets to a wall. If it is fitted directly to the pipework without these away from a wall, extra support may be required in the form of a bracket to the floor or a pipe support rail.

Dosing pots operating instructions :
Dosing pot dimensions 1.Starting point.

Read the safety instructions supplied with the chemical, and make sure you observe the correct safety precautions and clothing requirements. Ensure that all valves are closed. This will totally isolate the pot from both the system and the atmosphere.

2. Draining the pot.

Open drain valve E and then allow air to enter the pot through the vent valve B. Take care that no residual chemical remains in the pot, and that the water is not dangerously hot.

3. Filling the pot.

Close drain valve E, and open the fill valve A. Carefully and slowly pour the previously prepared chemical solution into the pot via the top mounted tundish, until the pot is full. As soon as the liquid appears at the vent valve B, this should be closed and the filling stopped. Close Fill valve A.

4. Injection to system.

Open valves C & D which will allow system water to flow through the pot and carry the chemical into the system. After a short period, the pot can be drained and re-used as many times as necessary to achieve the desired chemical dosage.

5. Standby.

After use, the pot can be left connected to the system, or the operator may well prefer to isolate it by closing valves C & D. The pot can then be drained, flushed, and left safely with all valves closed until required again.