Calpeda Submersible pumps with high cutting power shredder system - Gkg

Applications
To move water containing long filamentary materials, paper or textile material.
They are particularly suitable for the disposal of waste water in domestic,
residential and industrial use.
Solid passage 4 mm.

Operating conditions
Liquid temperature up 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: 6 ÷ 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
Shaft: stainless steel X20Cr13 (AISI420)
Motor side mechanical seal: graphite/ceramic
Pump side mechanical seal: silicon carbide/ceramic

Motor
Induction motor 2,4 poles, 50Hz
Three-phase version: 400V ± 10%up to 4.8 kW
                                  400/690V ± 10%from 5.8 kW
Isolation class: H
Degree of protection: IP 68
Max number of starts per hour: 20 at regular intervals
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.

Designation
GKG2 40-4T-0020F-X
GK = Series
G = Impeller with shredder system
2 = Number of poles
40 = Delivery port diameter in mm
4 = Free passage in mm
T = Impeller trim
0020 = Motor size (P2 = 2 kW)
F = Size of electric motor flanging
X = Versione ATEX

TYPE	Version ATEX	Dry chamber version Vertical	Dry chamber version Horizontal	Probes thermal	Probes conductivity	Cable NSSHOU-J	Cable H07RN-F	Class Isolation	Duck foot coupling	Duck foot coupling	Threaded bend
GKG2 40-4T-0020F	o	-	-	o	o	-	•	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4R-0020F	o	-	-	o	o	-	•	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4D-0020F	o	-	-	o	o	-	•	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4G-0020F	o	-	-	o	o	-	•	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4P-0025F	o	-	-	o	o	-	•	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4A-0025F	o	-	-	o	o	-	•	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4G-0038H	o	•	•	•	•	•	-	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4D-0048H	o	•	•	•	•	•	-	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"
GKG2 40-4A-0065H	o	•	•	•	•	•	-	H	SAK 40-G11/2A	SAK 40-G11/2-3/4	CFF 1 1/2"