The chemical electropump units

 

Electropumping units consist of the pump and the electric motor mounted on the general base plate (frame) and connected elastic muff. 

 

Pumps ХД (ДХ) - centrifugal horizontal one-stage pumps with the bilateral input pump impeller with a horizontal socket of the case.

 

Pumps ОХР – axial chemical horizontal reversible pumps. Pumps are applied to circulation of the dyeing solutions in devices of the dyeing-finishing equipment.

Pumps ОХГ- chemical horizontal console pumps with the rigid blades and the pipe bend of a pumped over liquid under 90°С.

 

All chemical pumps of each standard size are produced in various executions in dependence: from a material of a flowing part; diameter of the pump impeller for centrifugal pumps and a corner of installation of blades for pumps ОХГ type; models of the pump impeller for pumps ОХГ type; type of knot of consolidation of a shaft; power and executions of completing engines. Executions of chemical pumps on a material of details of a flowing part and also summary technical characteristics of pumps and electric motors are resulted more low in the table.

A symbol of a details material of a flowing part of chemical pumps:

A – casting 25Л;
K – casting 12Х18Н9ТЛ, a steel 12Х18Н10Т;
Е – casting 10Х18Н12МЗТЛ, a steel 10Х17Н13М2Т;
И – casting 07ХН25МДТЛ, a steel 06ХН28МДТ.

 

Materials of a flowing part of the pump choose on the assumption of corrosion activity of a pumped over liquid. Speed of corrosion of a material of a flowing part under the influence of the pumped over environment should not be more than 0,1 mm/year.

A symbol of pumps ОХР type at the order and correspondence: ОХР35х2-К-У3, where
ОХР – axial chemical reversible pump;
35 – diameter of the pump impeller, sm;
2 – two-level;
K – a material of details of a flowing part;
У3 – a climatic modification and a category of placing of the unit at operation.

A symbol of pumps ОХГ type at the order and correspondence:
ОХГ6-42a, б, в, д-К, Е, И, СД-У3, where
ОХГ – axial chemical pump with horizontal shaft;
6 – number of model of the pump impeller;
42 – diameter of the pump impeller, sm;
a, б, в, д – the symbol of a corner of installation of the pump impeller blades without a designation corresponds to a corner 0° (the basic execution);
а – this corresponds to a minus 6° corner;
б – this corresponds to a minus 3° corner;
в – this corresponds to a plus 3° corner;
д – this corresponds to a plus 6° corner;
К, Е, И – a symbol of a details material of a flowing part;
СД – stuffing box seal type;
У3 – a climatic modification and a category of placing of the unit at operation.

 

Summary technical characteristics of pumps and electric motors