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Calpeda Submersible pumps with open twin blade impeller - Gka
Construction
Submersible pumps with open twin blade impeller
It offers reliability against clogging and features and a good resistance to wear,
low mechanical action on the fluid, high hydraulic efficiency.
Low vibrations thanks to the dynamically balanced impeller.
Delivery port DN 80-100-150.
Applications
Particularly suitable for clean water, water containing solid and fibrous solids,
cloacal water, sewage and sludge.
Particularly suitable for the emptying of sewage from cesspits or primary
collection tanks or industrial waste water.
Solid passage from 34 to 60 mm
Particularly suitable for clean water, water containing solid and fibrous solids,
cloacal water, sewage and sludge.
Particularly suitable for the emptying of sewage from cesspits or primary
collection tanks or industrial waste water.
Solid passage from 34 to 60 mm
Operating conditions
Liquid temperature: from 0°C to +40°C.
Maximum immersion depth: 20m (with cable of suitable length).
Maximum working pressure: 80 m.w.c.
pH of the liquid to be lifted: 4 ÷ 10
Continuous service (with water at minimum immersion level).
Liquid temperature: from 0°C to +40°C.
Maximum immersion depth: 20m (with cable of suitable length).
Maximum working pressure: 80 m.w.c.
pH of the liquid to be lifted: 4 ÷ 10
Continuous service (with water at minimum immersion level).
Materials
Pump casing: cast iron EN-GJL250 UNI-EN 1561-11
Impeller: cast iron EN-GJL250 UNI-EN 1561-11
Motor casing: cast iron EN-GJL250 UNI-EN 1561-11 / EN-GJL450 UNI-EN
1561-11
Shaft: stainless steel X20Cr13 (AISI420)
Pump mechanical seal with flange size H - L - N
- motor side: graphite/ceramic
- pump side: silicon/ceramic carbide
Pump casing: cast iron EN-GJL250 UNI-EN 1561-11
Impeller: cast iron EN-GJL250 UNI-EN 1561-11
Motor casing: cast iron EN-GJL250 UNI-EN 1561-11 / EN-GJL450 UNI-EN
1561-11
Shaft: stainless steel X20Cr13 (AISI420)
Pump mechanical seal with flange size H - L - N
- motor side: graphite/ceramic
- pump side: silicon/ceramic carbide
Motor
4 poles induction, 50Hz
Three-phase version: 400V ± 10%, up to 4.8kW
400/690V ± 10% from 5.8kW
Isolation class: H
Degree of protection: IP 68
Max number of starts per hour:
- 20 up to 5 kW
- 15 up to 10 kW
- 10 for higher powers
Cable: length 10m
Direction of rotation: clockwise top view
Motor suitable for operation with frequency converter.
4 poles induction, 50Hz
Three-phase version: 400V ± 10%, up to 4.8kW
400/690V ± 10% from 5.8kW
Isolation class: H
Degree of protection: IP 68
Max number of starts per hour:
- 20 up to 5 kW
- 15 up to 10 kW
- 10 for higher powers
Cable: length 10m
Direction of rotation: clockwise top view
Motor suitable for operation with frequency converter.
Special features on request
(Check feasibility according to the model with our Technical Sales Office).
ATEX versions complying with EN60079-0 - EN60079-1 type I M2 Ex db h I Mb,
II 2G Ex db h IIB T4 Gb.
Impeller in stainless steel AISI 316 or bronze.
Bronze impeller seat ring.
Cable length up to 40 m
Other mechanical seal.
Higher or lower liquid or ambient temperatures.
Ceramic coating.
Internal anti-erosion coating, external anti-corrosion.
(Check feasibility according to the model with our Technical Sales Office).
ATEX versions complying with EN60079-0 - EN60079-1 type I M2 Ex db h I Mb,
II 2G Ex db h IIB T4 Gb.
Impeller in stainless steel AISI 316 or bronze.
Bronze impeller seat ring.
Cable length up to 40 m
Other mechanical seal.
Higher or lower liquid or ambient temperatures.
Ceramic coating.
Internal anti-erosion coating, external anti-corrosion.
Designation
GKA4 100-38A-0125L-X
GK = Series
A = open twin blade impeller
4 = Number of poles
100 = Delivery port diameter in mm
38 = Free passage in mm
A = Impeller trim
0125 = Motor size (P2 = 12,5 kW)
L = Size of electric motor flanging
X = Versione ATEX
GKA4 100-38A-0125L-X
GK = Series
A = open twin blade impeller
4 = Number of poles
100 = Delivery port diameter in mm
38 = Free passage in mm
A = Impeller trim
0125 = Motor size (P2 = 12,5 kW)
L = Size of electric motor flanging
X = Versione ATEX
Technical data
| TYPE | Version ATEX | Dry chamber version Vertical | Dry chamber version Horizontal | Probes thermal | Probes conductivity | Cable NSSHOU-J | Class Isolation | Duck foot coupling | Submersible pump rest | Dry chamber pump rest | Dry chamber pump support |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GKA4 80-34L-0016H | o | # | # | • | • | • | H / IE3 | SAK 80-80-2 | APK 80 | APCK 80 | SOK80/N3 |
| GKA4 80-34G-0016H | o | # | # | • | • | • | H / IE3 | SAK 80-80-2 | APK 80 | APCK 80 | SOK80/N3 |
| GKA4 80-34D-0021H | o | # | # | • | • | • | H / IE3 | SAK 80-80-2 | APK 80 | APCK 80 | SOK80/N3 |
| GKA4 80-34A-0029H | o | # | # | • | • | • | H / IE3 | SAK 80-80-2 | APK 80 | APCK 80 | SOK80/N3 |
| GKA4 100-38L-0075L | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-38G-0105L | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-38D-0125L | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-38A-0125L | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-41L-0029H | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-41G-0037H | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-41D-0046H | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-41A-0058H | o | # | # | • | • | • | H / IE3 | SAK 100-100-2A | APK 100 | APCK 100 | SOK100/N3 |
| GKA4 100-45L-0165N | o | # | - | • | • | • | H / IE3 | SAK 100-100-2 | APK 150 | APCK 150A | - |
| GKA4 100-45G-0193N | o | # | - | • | • | • | H / IE3 | SAK 100-100-2 | APK 150 | APCK 150A | - |
| GKA4 100-45D-0210N | o | # | - | • | • | • | H / IE3 | SAK 100-100-2 | APK 150 | APCK 150A | - |
| GKA4 100-45A-0260N | o | # | - | • | • | • | H / IE3 | SAK 100-100-2 | APK 150 | APCK 150A | - |
| GKA4 150-51P-0021H | o | # | # | • | • | • | H / IE3 | SAK 150-150-2 | APK 150 | APCK 150A | SOK150/N3 |
| GKA4 150-51L-0029H | o | # | # | • | • | • | H / IE3 | SAK 150-150-2 | APK 150 | APCK 150A | SOK150/N3 |
| GKA4 150-51G-0037H | o | # | # | • | • | • | H / IE3 | SAK 150-150-2 | APK 150 | APCK 150A | SOK150/N3 |
| GKA4 150-51D-0046H | o | # | # | • | • | • | H / IE3 | SAK 150-150-2 | APK 150 | APCK 150A | SOK150/N3 |
| GKA4 150-51A-0058H | o | # | # | • | • | • | H / IE3 | SAK 150-150-2 | APK 150 | APCK 150A | SOK150/N3 |
| GKA4 150-60L-0165N | o | # | - | • | • | • | H / IE3 | SAK 150-200-3 | APK 150 | APCK 150A | - |
| GKA4 150-60G-0193N | o | # | - | • | • | • | H / IE3 | SAK 150-200-3 | APK 150 | APCK 150A | - |
| GKA4 150-60D-0210N | o | # | - | • | • | • | H / IE3 | SAK 150-200-3 | APK 150 | APCK 150A | - |
| GKA4 150-60A-0260N | o | # | - | • | • | • | H / IE3 | SAK 150-200-3 | APK 150 | APCK 150A | - |
• = Standard o = Optional # = Version with oil chamber # = In case of operation in a dry chamber or with a low level of the pumped liquid, it
- = Not present $ = Version with cooling jacket is necessary to introduce the cooling oil according to the quantities indicated in the
use and maintenance manual
- = Not present $ = Version with cooling jacket is necessary to introduce the cooling oil according to the quantities indicated in the
use and maintenance manual
GKA4 80-34L-0016H
Specific References
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Construction
Submersible pumps with open twin blade impeller
It offers reliability against clogging and features and a good resistance to wear,
low mechanical action on the fluid, high hydraulic efficiency.
Low vibrations thanks to the dynamically balanced impeller.
Delivery port DN 80-100-150.