dosing pump

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dosing pump
DOSING PUMP
nexa SERIES-Hydraulic Double Diaphragm
YN2
316L
Technical characteristics
•
Flow rates: from 236 to 2610 lph @ 50Hz
•
Max Pressure: 4 MPa (40 bar)
•
Ambient temperature: -10 °C + 40 °C
•
Max altitude: 1000 m (A.S.L.)
•
Fluid operating temperature: -10 °C + 70 °C
•
Viscosity up to 1000 mPa•s (1000 cP) (Higher on request)
•
Stroke adjustment during operation from 0 to 100%
•
Accuracy ± 1 % on the turndown ratio 10:1
•
Built-in overpressure valve
•
Double diaphragm and diagnostic of the rupture
•
Diaphragm duration up to 20.000 hours, depending of the
application
•
Multiheads (up to six) solutions
•
API 675 compliance
•
CE marking
•
ATEX
•
Protection: IP 55
•
Epoxy painting at 125 micron
II 2 G c IIB T4 compliance
nexa series includes plunger and hydraulic diaphragm dosing pumps designed in compliance with API 675
Standards; the conformity to the API Standards implies a “heavy duty” design, high safety and severe controls of the
performances during the tests. The broad variety of heads execution offers a wide selection of dosing pumps to
cover practically any application needs. In addition the full compliance with the ATEX European Directive gives the
possibility to install these pumps in classified areas too.
Mechanism
Available in different sizes, they are mechanical return type, giving the maximum reliability in all working conditions.
General Specifications:
•
•
•
•
•
•
•
Low noise integral gearbox, worm type, oil bath lubricated
Reduced energy consumption based on low friction rolling bearings design
High flexibility multiple mechanism solution to permit different piston speeds (SPM) on the same group
Micrometric stroke lenght adjustment both manually and/or automatically actuated.
Automatic stroke length variation by electrical servomotor, pneumatic actuator or frequency converter
Linearity and repeatability in compliance with API 675 Standards.
Easy “on field” installation of electrical servomotor on manual stroke adjustment mechanism.
Diaphragm Pumphead
•
•
•
•
High capacity flexibilityà On site easy volume changing by changing the piston cartridge
Easy to change spares parts (all “one cartridge” solution).
Maximum compatibility PTFE diaphragm
Visual or remote diaphragm failure detection
| SEKO S.p.A.
1 of 4
Technical data can be changed without notice.
TD_YN2_SS_rev.2.4
DOSING PUMP
nexa SERIES-Hydraulic Double Diaphragm
YN2
316L
PUMP KEY CODE
| SEKO S.p.A.
2 of 4
Technical data can be changed without notice.
TD_YN2_SS_rev.2.4
DOSING PUMP
YN2
316L
nexa SERIES-Hydraulic Double Diaphragm
HYDRAULIC CHARACTERISTICS
Performances:
50 Hz 60Hz
236/2610
39/6
Flow rate at max
pressure
l/h gph
bar p.s.i.
Max
speed
75/827
566/87
Flow rate at max
pressure
Liquid end material
Electric motor kW
1,5
2,2
H
I
Max
speed
316L
Suc/Dis
Connec
Max pressure
Pump Model
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
5
5
5
5
7
7
7
7
9
9
9
9
C
C
C
C
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
F
D
F
D
F
D
F
D
F
D
F
D
F
D
F
D
6
6
4
4
6
6
4
4
6
6
4
4
6
6
4
4
H
H
I
I
H
H
I
I
H
H
I
I
H
H
I
I
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
lph
gph
Strokes
/min
236
288
337
416
494
603
704
865
778
980
1200
1480
1370
1710
2065
2610
62
76
89
110
131
159
186
229
206
259
317
391
362
452
546
689
62
78
93
117
62
78
93
117
62
78
93
117
62
78
93
117
lph
283
346
404
499
593
724
845
1038
934
1176
1440
1776
1644
2052
2478
3132
gph
Strokes
/min
bar
p.s.i.
bar
p.s.i.
75
91
107
132
157
191
223
274
247
311
380
469
434
542
655
827
74
94
112
140
74
94
112
140
74
94
112
140
74
94
112
140
39
37
20
18
11
11
7
6
-
566
537
290
261
160
160
102
87
-
39
39
19
20
11
11
7
6
566
566
276
290
160
160
102
87
Ø BSPP
NPSHr
[barg]
1" F
1" F
1" F
1" F
1" F
1" F
1" F
1" F
2" F
2" F
2" F
2" F
2" F
2" F
2" F
2" F
-0,35
-0,35
-0,50
-0,50
-0,40
-0,40
-0,55
-0,55
-0,55
-0,55
-0,55
-0,40
-0,30
-0,30
-0,30
-0,30
Test with water @ 20°C. | SEKO S.p.A.
3 of 4
Technical data can be changed without notice.
TD_YN2_SS_rev.2.4
DOSING PUMP
YN2
316L
nexa SERIES-Hydraulic Double Diaphragm
Allowable loads referred to pump nozzles
Fx
0.10 kN
Mx
0.04 kNm
Fy
0.12 kN
My
0.04 kNm
Fz
0.10 kN
Mz
0.04 kNm
FIXING HOLES – VIEW FROM Z
PUMP MDEL
1Y50N22FA..
1Y70N22FA..
1Y90N22FA ..
1YC0N22FA..
DIMENSIONS [mm]
A (EN10226)
BSPP 1"F
BSPP 1"F
BSPP 2"F
BSPP 2"F
B
237
237
288
288
C
237
237
288
288
D
481
481
531
531
OPTIONAL FLANGE ANSI 300
MAX. TEMP. 38°C
MAX. PRESSURE 40BAR
SIZE
158,5
158,5
209
210
1"
1"
2"
2"
TEFC
1xM20x1.5
EExde
1xM25x1.5
E
kg
E
kg
0.75
260
12
340
33
1.50
320
22
370
46
Electric
motor size 4 Poles
kw
6 Poles
kw
90
1.5
100
2.2
| SEKO S.p.A.
EXTIMATED WEIGHT
kg (without motor)
4 of 4
Technical data can be changed without notice.
TD_YN2_SS_rev.2.4

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