Table Of ContentXN Series
Technical Guide
Centrifugal electric pumps made
of AISI 316 stainless steel in
compliance with EN733
XN Series
XN Series t Index
Sectors of application ...............................................................................................................................................................4
Technical characteristics ......................................................................................................................................................5-6
Electropump identification data and nominal data ..........................................................................................................7
List of models...............................................................................................................................................................................8
List of models and table of materials .............................................................................................................................9-13
Mechanical closing device in accordance with the EN 12756 standard ..................................................................14
Motor specifications and electrical data .....................................................................................................................15-18
Hydraulic performance field, 50 Hz 2-poles at 2900 rpm ............................................................................................19
Hydraulic performance table, 50 Hz 2-poles at 2900 rpm .....................................................................................20-21
Hydraulic performance field, 50 Hz 4 -poles at 1450 rpm ...........................................................................................22
Hydraulic performance table, 50 Hz 4-poles at 1450 rpm .....................................................................................23-24
Curves for operation, 50 Hz at 2900 rpm ....................................................................................................................26-48
Curves for operation, 50 Hz at 1450 rpm ....................................................................................................................49-71
Dimensions and weights ..................................................................................................................................................74-87
Accesories ...................................................................................................................................................................................88
Notes .....................................................................................................................................................................................89-90
3
Serie XN
Serie XN t Características técnicas
Monobloc centrifugal electropumps based on the EN733 standard, series XN
The XN pump is a monobloc centrifugal
pump made of AISI 316 stainless steel
based on the EN733 standard.
Market sectors: The Espa XN series pumps are used for water and clean liquid circulation in heating,
ventilating and air conditioning systems, and for pressure boosting in industrial applications.
>> Piping of water and clean liquids that are not chemically aggressive.
>> Water circulation in air conditioning facilities.
>> Industry.
Field of application t XN at 2900 rpm and 1450 rpm
Curves obtained in accordance with ISO9906 appendix A.
4
XN Series
XN Series tTechnical characteristics
Specifications t The surface motors have efficiency values that fall within the
t The XN series consists of single-stage centrifugal pumps made range normally referred to as efficiency class 2.
of pressed AISI 316 stainless steel. t IP 55 protection.
t The liquid sizes and diameters of the suction and delivery ports t Insulation class F.
are in compliance with EN 733 standards (ex DIN 24255). t Max. ambient temperature: 40°C.
t Flange dimensions in compliance with EN 1092-1. For different environmental conditions, check the power.
t Available sizes: DN 25 to DN 80. t Overload protection to be provided by user.
t Anti-clockwise rotation when facing pump’s suction port. t Standard voltage :
t Back pull-out design. Single-phase version: 220-240 V 50 Hz.
Three-phase version: 220-240/380-415 V 50 Hz for powers up
Technical data to 4 kW; 380-415/660-690 V 50 Hz for powers above 4 kW.
t Delivery: up to 240 m3/h to 2 poles, up to 130 m3/h to 4 poles.
t Head: up to 110 m to 2 poles, 23 m to 4 poles.
t Temperature of pumped liquid: standard -10°C to +120°C.
Special version available on request.
t Maximum working: 12 bar (PN 12).
Electrical and motor specifications
t Three-phase asynchronous, squirrel cage rotor, enclosed
construction, external ventilation.
t Performances according to EN 60034-1.
5
XN Series
XN Series t Technical characteristics
Construction characteristics
t Stainless steel centrifugal pump with end suction and radial
discharge ports.
t Pump body made of AISI 316L stainless steel.
t Flanges in compliance with EN1092-1 and DIN2532.
t Back pull-out design (impeller, bracket and motor can be
extracted without disconnecting the pump body from the
piping).
t Closed impeller made of AISI316L stainless steel,
laser-technology welded (for sizes 25, 32, 40, 50, 65-160/75,
65-160/110A) or AISI CF8M cast stainless steel.
t Mechanical seal according to EN12756 (ex DIN 24960).
t AISI 316L stainless steel fill & drain plugs. XN - XN4
Motor-pump coupling
There are three different types of motor-pump coupling:
t XN close-coupled by means of a bracket with impeller keyed
directly to the motor shaft extension.
t XNS with a bracket, adaptor and rigid coupling keyed to the
standard motor shaft extension.
t XNF with bracket, support, flexible coupling, and aligning
and anchoring base.
t A bare shaft pump version and version with spacer coupling
are also available.
Accessories on request
t AISI 316 stainless steel or galvanized iron counter-flanges.
t Intermediate flange with pressure gauge connection. XNS - XNS4
t Pump and motor shims.
Optional features
t Different voltages and frequencies.
t Special materials for the mechanical seal and gaskets.
t Version with internal recirculation of pumped liquid to
mechanical seal.
t Version with rotation locking system seal.
t The version with a cooling system outside the mechanical
closing.
t Tropicalized motors.
t Version with Hydrovar® control system.
t XNF with flexible coupling with spacer.
XNF - XNF4
6
XN Series
XN Series t Electropump identification data and nominal data
Identification data XN
XN E 4 32 200 / 40 6 A
Reduced impeller
6 = 60 Hz
Rated motor power (kW x 10)
Impeller nominal diameter (mm)
Discharge port nominal diameter (mm)
= 2 poles motor
4 = 4 poles motor
E = close-coupled version
S = version with rigid coupling, IEC standard motor
F = version with flexible coupling, base according to EN 733
XN series name
Nominal data
Pump plate
1
6
2
7
8
Legend
t 1. Electropump type
9
t 2. Flow range
10 t 3. Height range
3
t 4. Type of motor
11
5 t 5.Speed
t 6. Year of manufacture
t 7. Code
12
t 8. Serial number
Electropump plate t 9. Maximum operating
6
1 temperature
t 10. Minimum height
t 11. Maximum height
t 12. Nominal rating
7
t 13. Depth
8
2 9
3 10
4 11
5 12
13
7
XN Series
XN Series t List of models
2 Poles 4 Poles
SIZE kW XNM XN XNS XNF SIZE kW XN4 XN XNS
25 125/07 0.75 • • • • 25 125/02A 0.25 • •
25 125/11 1.1 • • • • 25 125/02 0.25 • •
25 160/15 1.5 • • • • 25 160/02 0.25 • •
25 160/22 2.2 • • • • 25 160/03 0.37 • •
25 200/30 3 • • • 25 200/03 0.37 • •
25 200/40 4 • • • 25 200/05 0.55 • •
25 250/55 5.5 • • • 25 250/07 0.75 • • •
25 250/75 7.5 • • • 25 250/11 1.1 • • •
25 250/110 11 • • • 25 250/15 1.5 • • •
32 125/07 0.75 • • • • 32 125/02A 0.25 • •
32 125/11 1.1 • • • • 32 125/02 0.25 • •
32 160/15 1.5 • • • • 32 160/02 0.25 • •
32 160/22 2.2 • • • • 32 160/03 0.37 • •
32 200/30 3 • • • 32 200/03 0.37 • •
32 200/40 4 • • • 32 200/05 0.55 • •
32 250/55 5.5 • • • 32 250/07 0.75 • • •
32 250/75 7.5 • • • 32 250/11 1.1 • • •
32 250/110 11 • • • 32 250/15 1.5 • • •
40 125/11 1.1 • • • • 40 125/02A 0.25 • •
40 125/15 1.5 • • • • 40 125/02 0.25 • •
40 125/22 2.2 • • • • 40 125/03 0.37 • •
40 160/30 3 • • • 40 160/03 0.37 • •
40 160/40 4 • • • 40 160/05 0.5 • •
40 200/55 5.5 • • • 40 200/07 0.75 • • •
40 200/75 7.5 • • • 40 200/11 1.1 • • •
40 250/92 9.2 • 40 250/11 1.1 • • •
40 250/110A 11 • • 40 250/15 1.5 • • •
40 250/110 11 • • • 40 250/22 2.2 • • •
40 250/150 15 • • • 50 125/03A 0.37 • •
50 125/22 2.2 • • • • 50 125/03 0.37 • •
50 125/30 3 • • • 50 125/05 0.5 • •
50 125/40 4 • • • 50 160/07 0.75 • • •
50 160/55 5.5 • • • 50 160/11 1.1 • • •
50 160/75 7.5 • • • 50 200/11 1.1 • • •
50 200/92 9.2 • 50 200/15 1.5 • • •
50 200/110A 11 • • 50 250/22A 2.2 • • •
50 200/110 11 • • • 50 250/22 2.2 • • •
50 250/150 15 • • • 50 250/30 3 • • •
50 250/185 18.5 • • • 65 160/05 0.5 • • •
50 250/220 22 • • • 65 160/07 0.75 • • •
65 160/40 4 • • • 65 160/11A 1.1 • • •
65 160/55 5.5 • • • 65 160/11 1.1 • • •
65 160/75 7.5 • • • 65 160/15 1.5 • • •
65 160/92 9.2 • 65 200/15 1.5 • • •
65 160/110A 11 • • 65 200/22 2.2 • • •
65 160/110 11 • • • 65 200/30 3 • • •
65 200/150 15 • • • 65 250/40 4 • • •
65 200/185 18.5 • • • 65 250/55 5.5 • • •
65 200/220 22 • • • 80 160/15 1.5 • • •
65 250/300 30 • • 80 160/22A 2.2 • • •
65 250/370 37 • • 80 160/22 2.2 • • •
80 160/110 11 • • • 80 200/30 3 • • •
80 160/150 15 • • • 80 200/40 4 • • •
80 160/185 18.5 • • • 80 250/55 5.5 • • •
80 200/220 22 • • • 80 250/75 7.5 • • •
80 200/300 30 • • 80 250/92 9.2 • •
80 200/370 37 • •
• Available
80 250/450 45 •
80 250/550 55 •
80 250/750 75 •
8
XN Series
XN Series t List of models and table of materials
XN - XN4 Series
2 POLES VERSION 4 POLES VERSION
XN25 125/07 XN40 125/22 XN4 25 200/05 XN4 50 250/22
XN25 125/11 XN40 160/30 XN4 25 250/07 XN4 50 250/30
XN25 160/15 XN40 160/40 XN4 25 250/11 XN4 65 160/05
XN25 160/22 XN40 200/55 XN4 25 250/15 XN4 65 160/07
XN25 200/30 XN40 200/75 XN4 32 200/05 XN4 65 160/11A
XN25 200/40 XN40 250/92 XN4 32 250/07 XN4 65 160/11
XN25 250/55 XN40 250/110 XN4 32 250/11 XN4 65 160/15
XN25 250/75 XN50 125/22 XN4 32 250/15 XN4 65 200/15
XN25 250/110 XN50 125/30 XN4 40 160/05 XN4 65 200/22
XN32 125/07 XN50 125/40 XN4 40 200/07 XN4 65 200/30
XN32 125/11 XN50 160/55 XN4 40 200/11 XN4 65 250/40
XN32 160/15 XN50 160/75 XN4 40 250/11 XN4 65 250/55
XN32 160/22 XN50 200/92 XN4 40 250/15 XN4 80 160/15
XN32 200/30 XN50 200/110 XN4 40 250/22 XN4 80 160/22A
XN32 200/40 XN50 160/40 XN4 50 125/05 XN4 80 160/22
XN32 250/55 XN50 160/55 XN4 50 160/07 XN4 80 200/30
XN32 250/75 XN50 160/75 XN4 50 160/11 XN4 80 200/40
XN32 250/110 XN50 160/92 XN4 50 200/11 XN4 80 250/55
XN40 125/11 XN50 160/110 XN4 50 200/15 XN4 80 250/75
XN40 125/15 XN80 160/110 XN4 50 250/22A XN4 80 250/92
REF No DESCRIPTION MATERIAL REF. STANDARDS EUROPA REF. STANDARDS USA
1 Pump body Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
Impeller 25-32-40-50-65 (160) Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
2
Impeller 65 (200-250)-80 Stainless steel EN 10213-4-GX5CrNiMo19-11-2 (1.4408) ASTM CF8M (cast AISI 316)
3 Seal housing Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
4 Wear ring Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
5 Counterwear ring Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
6 Shaft extension Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
7 Rigid shaft coupling Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
8 Impeller locknut and washer Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
9 Tab Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
10 Fill/drain plugs Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
11 Mechanical seal Ceramic / Carbon / FPM (standard version)
12 Elastomers FPM (standard version)
Adapter* Aluminium EN 1706-AC-AISi1 1Cu2 (Fe) (AC46100)
13
Adapter Cast iron EN 1561-GJL-200 (JL1030) ASTM Class 25
15 Pump body fastening bolts & screws Galvanized steel
* For the 25/32/40-125 2/4 poles, 25/32/40-160 2/4 poles, 25/32/40-200 2/4 poles versions
9
XN Series
XN Series t List of models and table of materials
XN - XN4 Series
2 POLES VERSION
XN40 250/150
XN50 250/150
XN50 250/185
XN50 250/220
XN65 200/150
XN65 200/185
XN65 200/220
XN80 160/150
XN80 160/185
XN80 200/220
4 POLES VERSION
XN4 25 125/02A
XN4 25 125/02
XN4 25 160/02
XN4 25 160/03
XN4 25 200/03
XN4 32 125/02A
XN4 32 125/02
XN4 32 160/02
XN4 32 160/03
XN4 32 200/03
XN4 40 125/02A
XN4 40 125/02
XN4 40 125/03
XN4 40 160/03
XN4 50 125/03A
XN4 50 125/03
REF No DESCRIPTION MATERIAL REF. STANDARDS EUROPA REF. STANDARDS USA
1 Pump body Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
Impeller 25-32-40-50-65 (160) Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
2
Impeller 65 (200-250)-80 Stainless steel EN 10213-4-GX5CrNiMo19-11-2 (1.4408) ASTM CF8M ( cast AISI 316)
3 Seal housing Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
4 Wear ring Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
5 Counterwear ring Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
6 Shaft extension Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
7 Rigid shaft coupling Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
8 Impeller locknut and washer Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
9 Tab Stainless steel EN 10088-1-X2CrNiMo17-12-2 (1.4404) AISI 316L
10 Fill/drain plugs Stainless steel EN 10088-1-X5CrNiMo17-12-2 (1.4401) AISI 316
11 Mechanical seal Ceramic / Carbon / FPM (standard version)
12 Elastomers FPM (standard version)
Adapter* Aluminium EN 1706-AC-AISi1 1Cu2 (Fe) (AC46100)
13
Adapter Cast iron EN 1561-GJL-200 (JL1030) ASTM Class 25
15 Pump body fastening bolts & screws Galvanized steel
* For the 25/32/40-125 2/4 poles, 25/32/40-160 2/4 poles, 25/32/40-200 2/4 poles versions
10
Description:t AISI 316 stainless steel or galvanized iron counter-flanges. t Intermediate flange with 65 250/370. 80 160/110 .. Q1 Q1 E G G. V. Q1. Q1. V. Q1.