Project Description

SDY02

Sproull® SDY Self-balancing Multistage Pump is a horizontal single suction multistage centrifugal pump designed by API610 standard, with advantages of high efficiency, wide performance, steady and safety opertion, low noise, long worklife, easy installation etc. It can transport the medium with solid particles (the particle size should me less than quarter of the impeller channel), and the pump can use different materials, seal type, adding cooling system for delivering clean water, hot water, boiler feed water, corrosive liquids, oils, and abrasive medium etc.

Working Condition:

Capacity: 3-1800 m³/h
Head: 50-960 m
Speed:2950,1480 r/min
Working Temperature:0 ℃~ 80 ℃

Design features:

• With symmetrically arranged impeller rotor components, axial forces generated by all levels of symmetrical impellers forces offset each other and automatic balancing of huge axial thrust within pump cavity can be realized without the balance disc structure.
• Unique throtting and pressure reduction devices, odd-level balancing device
• Using advanced hydraulic model, independent R&D enery efficient products, Good centering of impeller and guide vane channel and efficiency will not significantly drop as balancing disc wears and rotor components move forward. No leakage of balancing water reduces loss of volume and improves pump efficiency and pump efficiency is on average 2-5% higher than normal pumps
• By canceling easy-failing balancing disc, pump reliability is greatly improved, maintenance frequency and maintenance cost are reduced
• By adopting precision casting and unique throttling and pressure reducing devices for auxiliary support pump vibration and noise are greatly reduced and service life is prolonged
• Excellent hydraulic model and design, unique first stage double suction impeller, forging casting, reliable anti-abrasive materials make sure the pump with excellent NPSH, pump work steady, no noise and users do not need to add preposition pump or inrease the height of the inlet chest
• No axial clearances when pump working and stop.
• It can change mechanical seal, bearing without disassemble the inlet/outlet pipes.
• Forging casting spare parts can save the maintenance cost
• No balance device make pump more wider application.

Sproull® SDY Self-balancing Multistage Pump can deliver oil or petroleum product without solids and viscosity less than 120 centipoises.

SDY Self balancing Multistage Pump PA

Structure Drawing of Type Sproull® SDY Pump

SDY11
SDY12
1 Coupling 5 Bolt 9 Middle section 13 Outlet section 17 Balance plate
2 Rolling bearing 6 Inlet section 10 Guide vane 14 Balance set 18 Water sealing pipe
3 Rolling bearing part 7 Wearing ring 11 Balance water pipe part 15 Balance ring 19 Packing
4 Shaft 8 Impeller 12 Guide vane sleeve 16 Stuffing box body 20 Packing gland

Rotation Direction

SDY08

Sproull® SDY Preformance Curve

SDY13
lllustrations of Model Type
SDY85-45×9
SDY Self-balancing multi-stage anti-wear pumps
85 Rated Flow is 85m³/h
45 Rated Head for 1 Stage is 45m
9 Number of stage for Pump is 9 stages

Sproull® SDY Preformance parameter list(Demonstration)

Type Number of stage Capacity
m³/h
Head
m
Speed
n(r/min)
Eff
η(%)
Shaft power
pa(kw)
Motor power
kw
NPSH
r(m)
Impeller Dia.
Mm
SDY1100-85 3 850 267 1450 82 754.2 1250 7.0 550
1100 255 84 910
1350 221 78 1042.3
4 850 352 1450 82 994.3 1600 7.0 550
1100 340 84 1213.3
1350 306 78 1443.2
5 850 437 1450 82 1234.4 2000 7.0 550
1100 425 84 1516.6
1350 391 78 1844.1
6 850 500 1450 82 1474.5 2500 7.0 550
1100 510 84 1820
1350 476 78 2245
7 850 607 1450 82 1714.6 3150 7.0 550
1100 595 84 2123.2
1350 561 78 2645.9
8 850 692 1450 82 1954.7 3550 7.0 550
1100 680 84 2426.5
1350 646 78 3046.8
9 850 777 1450 82 2194.8 4000 7.0 550
1100 765 84 2730
1350 731 78 3447.6
10 850 862 1450 82 2435 4500 7.0 550
1100 850 84 3266.5
1350 816 78 3848.5
Only part of the product model demonstration
If the actual requirements of performance parameters and performance table does not match, can be based on user requirements for design and manufacture.

Sproull® SDY Installation Drawing(Demonstration)

SDY10
Type Installation Dimensions(mm)
Motor Power
(kw)
L L1 L2 L3 L4 L5 L6 L7 L8 C B B1 B2 B3 H H1 H2 H3 h Φd ΦK
SDY85-45×9 160 2700 900 525 816 190 304 721 340 98 4 457 520 510 250 345 250 315 930 40 26 28