Single -stage centrifugal pumps of unilateral action type are designed to transport chemically neutral sludge and mine water and porridge fluids with a temperature of up to 80 ° C.
A simple and reliable design of the pumps provides their impeccable work in the most difficult conditions. The use of the open -type work wheel eliminates the possibility of pouring and suspension of work. That is why they find use in construction and utilities for transporting waste and fecal liquids, on livestock farms for mechanized feed supply, industry and mining for water removal, etc.
Pumps of the “Sh” type are driven by three -phase asynchronous electric motors with a rotation speed of 1450 rpm, or 2900 rpm. and covers the field of needs with 5.5 to 50 l/s, and pressure from 35 to 40 m.
Pumps of type "Sh" are made with a bearing housing, in which a shaft with a console fixed work wheel is installed on the rolling bearings. The liquid enters the axis of the shaft, and comes into the plane, the perpendicular axis, with the possibility, depending on the conditions, fixing with a step of 90 °.
The main performance is with a discharge hole directed vertically upwards. Working wheel - unilateral action of an open type. It is attached to the shaft by means of a shaped nut and a safety washer, and the transmission of the torque is carried out by a key joint. Cabinet parts of the pumps are protected from wear with the help of safety disks, and the shaft - through a safety sleeve. The seal between the spiral and absorbent cases is carried out by means of rubber seal with a round section, and between the shaft and the oil seal, the supply of stuffing and safety studs and nuts. The pumps "Sh" together with the electric motor are installed on a general chassis made of profile steel. The transmission of torque is carried out by means of elastic fist couplings. The direction of movement of the rotor is counterclockwise, if you look from the absorption side
The designation of the pumps includes the following:
50sh40
50 - nominal feed (rounded - l/s);
W - centrifugal single -stage pump for contaminated liquids;
40 - nominal pressure in m;
|
type of pump |
n = 730 min -1 |
n = 970 min -1 |
n = 1450 min -1 |
n = 2900 min -1 |
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|
Submission |
pressure |
η |
Submission |
pressure |
η |
Submission |
pressure |
η |
Submission |
pressure |
η |
|
|
6sh35 |
5.5 |
37 |
51 |
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|
6Sh35A |
5 |
30 |
51 |
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|
20sh40 |
1 05 |
10 |
53 |
17 |
17 |
55 |
20 |
40 |
56 |
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|
20sh40a |
20 |
34 |
53 |
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|
50sh30 |
28 |
8.5 |
64.5 |
38 |
14 |
65 |
55.5 |
32 |
66 |
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|
50sh30a |
50 |
28 |
61.5 |
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|
50sh40 |
25 |
10 |
57 |
44.4 |
12.5 |
59 |
50 |
40 |
61 |
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|
50sh40a |
45 |
32 |
60 |
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