IMPA:
ADJUNCT B is a pure neutral grade of disodium phosphate. It is used in conjunction with GC™ concentrated alkaline liquid to prevent calcium scale deposits. Both products are used in our standard boiler water treatment programs for low-pressure boiler systems (0-32 bar) and medium-pressure steam propulsion vessels (32-60 bar). They are also used in our ULTRAMARINE boiler water treatment program for high-pressure steam generating systems (60-84 bar).
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Dosage, Testing and Control
The daily boiler water phosphate test result determines the necessary dosage. For details on the testing procedure, refer to the appropriate control and dosage chart, or contact your local Drew Marine representative.
Feed Points
Dose with GC concentrated alkaline liquid by diluting with condensate and feed directly into the system drum (below the water level) using a bypass pot feeder.
For low-pressure boilers, ADJUNCT B treatment may be dosed to the hotwell or condensate return tank, although this is not the preferred method.
See the Download information tab for available product documentation. Current formulation, packaging, documentation, availability and lead time are confirmed in the quotation.
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