SKG self-priming pumps
Applications
SKG self-priming rotodynamic pumps with side ring channel and open impeller are designed for pumping liquids within the corrosion resistance limits of materials used for their construction. The pumps are also designed for pumping hydrocarbons such as gasolines, fuel oils etc.
SKG pumps can be used in:
Technical specifications
| capacity |
0,3 ÷ 30 m3/h |
| delivery head |
up to 310 m |
| pumped liquid temperature |
up to 70 oC |
| liquid density |
up to 1300 kg/m3 |
| liquid viscosity |
up to 150 mm2/s |
| mass |
22,2 ÷ 409,0 kg |
| motor power |
0,25 ÷ 30,0 kW |
| rotation speed |
1450 obr/min (50 Hz) and 1800 obr/min (60 Hz) |
| rotations direction |
clockwise, looking on the pumps from drive side |
| shaft seal |
end-face seal, V type |
Technical data with division into individual types
| Pump variety |
Type/size |
Type dimension |
Parameters |
Capacity
Q [m3/h] |
Delivery head
H [m] |
| SKG |
2 |
01, 02, 03, 04, 05, 06, 07, 08 |
0,3 ÷ 2,1 |
6,0 ÷ 122,0 |
| 3 |
01, 02, 03, 04, 05, 06, 07, 08 |
1,0 ÷ 3,0 |
11,0 ÷ 224,0 |
| 4 |
01, 02, 03, 04, 05, 06, 07, 08 |
1,8 ÷ 4,5 |
8,0 ÷ 204,0 |
| 5 |
01, 02, 03, 04, 05, 06, 07, 08 |
3,5 ÷ 7,5 |
11,0 ÷ 310,0 |
| 6 |
01, 02, 03, 04, 05, 06, 07, 08 |
6,0 ÷ 12,0 |
16,0 ÷ 222,0 |
| 7 |
01, 02, 03, 04, 05, 06, 07, 08 |
10,5 ÷ 20,0 |
10,0 ÷ 291,0 |
| 8 |
01, 02, 03, 04, 05, 06, 07, 08 |
16,0 ÷ 30,0 |
15,0 ÷ 289,0 |
Product marking structure
| a a |
- classification group |
f
|
- product variety (G - with ball bearing at suction side and slide bearing on discharge site for handling liquid hydrocarbons) |
| b |
- pump type/size (2 ÷ 8) |
| c c |
- pump type/dimension (number of stages) (01 ÷ 08) |
| d |
- pump material execution as in MATERIAL EXECUTION |
| e1 e2 e3 e4 |
- pump constructional execution as in CONSTRUCTIONAL EXECUTION |
| h |
- supply completeness as in SUPPLY COMPLETENESS |
| i i i |
- motor type |
| k |
- product cosmetics as in PRODUCT COSMETICS (protective coatings) |
Material execution of SKG pumps
SKG pumps are produced in six material executions
| Pump elements |
Material "d" |
| 1 |
2 |
3 |
4 |
5 |
6 |
| Casing |
ductile cast iron |
tin bronze |
ductile cast iron |
ductile cast iron |
cast carbon steel |
austenitic cast steel |
| Members |
gray cast iron |
chromium cast iron |
gray cast iron |
chromium cast iron |
cast carbon steel |
austenitic cast steel |
| Impeller |
tin bronze |
tin bronze |
ductile cast iron |
tin bronze |
tin bronze |
special austenitic cast steel |
| Shaft |
stainless steel |
acid-proof steel |
stainless steel |
acid-proof steel |
stainless steel |
acid-proof steel |
| Shaft seal |
soft-cord seal * |
| mechanical * |
* material selection of seals depends on pumped liquid
Constructional execution
Constructional execution No
e1 e2 e3 e4 |
Constructional execution |
SKG pump |
| 2 |
3 |
4 |
5 |
6 |
7 |
8 |
| 1110 |
Pump with single front seal of V-type for -30oC ÷ +70oC liquid temperature |
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| 1130 |
Pump with single front seal of US-type for -30oC ÷ +70oC liquid temperature |
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| 1230 |
Pump with single front seal of 58U-type for -30oC ÷ +70oC liquid temperature |
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| 1640 |
Pump with double front seal of BED-type for -30oC ÷ +70oC liquid temperature |
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| 1650 |
Pump with double front seal of BED-type and liquid system for -30oC ÷ +70oC liquid temperature |
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Supply completeness
1 - Pump with free shaft end
2 - Pump with coupling
3 - Pump with coupling and foundation plate
5 - As in 3 plus electric motor
Product cosmetics
1 - Standard
2 - Special
Design
SKG pumps consist of bearing housings, shaft as well as suction and discharge housings. Impellers are mounted on the shaft, their number depends on the number of pump stages. Impeller positions are set by limiting members. The suction member is located at the suction housing side, then comes suction/discharge member and the last discharge member. In SKG pumps one ball bearing is used at the suction side when a special slide bearing is used at the discharge side. Moreover, a front seal is installed in the suction housing. For sealing particular members and housings connection the special LOCTITE 573 sealing compound is used.
Such a design ensures long pump life.
Features:
- many years of reliable operation and easy access to replacement parts guaranteed,
- execution of individual requirements and products adjusted to customer's needs,
- permanent technical supervision as well as guarantee and post-guarantee service,
- low procurement and operation costs,
- relatively long life in difficult operational conditions.
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