DESIGN FEATURES
ND are high specification 2858 pumps. They have
been designed to be robust and offer high pumping
efficiency and low NPSH requirements.
Centrifugal Pumps
1
3
2
Impellers balanced with back vanes on
smaller models as to help clean the seal
chamber as discharge pressures are lower.
Conical pump chamber with internal
mechanical seal available.
Larger model impellers balanced with holes.
4
6
5
Double ball bearing and roller bearing support
available.
Duplex SS shaft as standard.
Pump chamber drain.
7
Two wear rings.
3535
3532
3533
3531 8 9 10
35373536
3534
API 682 Plan 11 seal available.8
A wide range of mechanical and cartridge seal
options.9
Labyrinth seals available. 10
ND RangeMechanically Sealed ISO Pumps
DESIGN SUMMARY
Standards ISO 2858/5199
Configuration Horizontal long coupled
Motors IE2, IE3
Seal Type Single and Double Mechanical
Cartridge, API Plan 11, Packing
SPECIFICATIONS
Maximum Temp 170 oC
Minimum Temp -10 oC
Max Flow 1,500 m 3/hr
Max Head 140 m
Max Pressures 16 bar total system
ATEX Yes
MATERIALS
Standard Options
Rear Casing CF8M SS Duplex, Hastelloy
Front Casing CF8M SS Duplex, Hastelloy
Impeller CF8M SS Duplex, Hastelloy
Shaft Duplex Duplex
Wear Rings Duplex Super Duplex
Hastelloy
Seal SiC/Carb/EPDM SiC/SiC/Viton
many other options available
Centrifugal Pumps
ND - Performance Curves
He
ad
me
tre
s
106 20 50 100 200 5004 5
20
30
40
12
14
16
60
80
100
3m /hour
5x3x12 6x5x12 8x6x12 10x8x12
4x3x16 5x3x16
4x3x25 10x6x25 12x8x25
12x10x25
12x8x1610x8x168x6x166x5x16
4x3x20 5x3x20 12x8x2010x8x208x5x206x4x20
5x3x25
12x10x20
2950 rpm
600 700
120
140
160
8x5x31 6x4x31 10x6x31
10x6x25
12x8x31
12x10x31
15x12x50
3
500106 20 50 100 150 1004 5
He
ad
me
tre
s
3m /hour
1000 16001200 1400
4x3x25 8x5x25 12x8x255x3x25
6
8
10
20
4
5
20x15x25
15x12x2512x10x25
4x3x20 5x3x20 12x8x2010x8x20
8x5x206x4x20
4x3x16 5x3x16 12x8x1610x8x168x6x166x5x16
5x3x12 6x5x12 8x6x12 10x8x12
40
60
80
100
80
8x5x3110x6x31
120 200
12x10x31
12x8x31
20x15x31
12x8x4012x10x40
15x12x31
15x12x40
10x6x25
25x20x40
25x20x31
30x30x40
35x30x4020x15x40
15x12x50 20x15x50
30x25x57
1450 rpm
12x10x20
6x4x25
8x5x25