Project Description

OJS02

Sproull® OJS Single Stage Double Suction Centrifugal Pump is single stage double suction horizontal split centrifugal clean water pump,it has high efficiency and energy saving character. With wide Performance range, superior hydraulic performance and reasonable structure, the series of pumps have high efficiency and reliability, low cavitations and cost for maintenance.

Working Condition:

Max. Head: 190 m
Max. Flow: 3780 m³/h
Max. Liquid temperature: 80°c
Speed: 1480/2980 rpm at 50Hz
Max. Working pressure: 16 bar as standard
Materials:copper, cast iron, ductile iron, 316 stainless steel, 416; 7 rust steel, two-way steel, Hastelloy, Monel, titanium alloy and No. 20 alloy.

Design features:

• The inlet and outlet flanges of the pump body are all located in the lower pump body, so that the rotor can be taken out without disassembling the system pipeline, which is convenient for maintenance. Part of the pump body adopts dual-channel design to reduce the radial force, thereby extending the mechanical seal and bearing life.
• The hydraulic design of the impeller of the split pump adopts the most advanced CFD technology, thus improving the hydraulic efficiency of the OJS pump. The impeller is dynamically balanced to ensure the smooth operation of the OJS pump.
• The shaft diameter is thicker and the bearing spacing is short, which reduces the shaft deflection and prolongs the life of the mechanical seal and the bearing. The shaft sleeve can be made of many different materials to prevent the shaft from being corroded and worn, and the shaft sleeve can be replaced.
• Wear ring The replaceable wear ring is used between the pump body and the impeller to prevent the wear of the center-split pump body and the impeller. It is convenient to replace and low in maintenance costs. At the same time, it ensures the running clearance and high work efficiency. Either packing or mechanical seal can be used, and the sealing device can be replaced without removing the pump cover.
• The suction port and discharge port of the horizontal double-suction centrifugal pump are below the pump shaft line, and are perpendicular to the axis. All parts can be removed by uncovering the pump cover during maintenance without disassembling the motor and pipeline.

Sproull® OJS Single Stage Double Suction Centrifugal Pump is mainly used for deliver fresh water or other liquids similar to fresh water, the solid content is not more than 80mg/L, it also can deliver sewage, sea water and muddy water with little particle with adopting of anti-corrosion and anti-friction material. The products are widely applicable to supply & drainage system or cooling & circulating system for iron & steel, petrochemical, thermo power plant and mines industries, etc. and running water system for cities, circulating water for heating system, irrigation projects and various water conservation projects, fire systems, shipbuilding industry as well.

OJS Single Stage Double Suction Pump PA

Structure Drawing of Type Sproull® OJS Pump

OJS08
1 Pin 7 Packing 13 Impeller key 19 Lock nut 25 Bearing
2 Bearing circlip 8 Water seal cage 14 Key 20 Water retaining ring 26 Bearing skeleton oil seal
3 Bearing 9 Packing sleeve 15 Stuffing box O-ring 21 Shaft 27 Coupling
4 Bearing washer 10 Wear ring 16 Skeleton oil seal 22 Wear ring fixing pin 28 Coupling key
5 Bearing gland 11 Impeller 17 Bearing 23 Sleeve O-ring 29 Coupling
6 Packing gland 12 Volute 18 Spring 24 Shaft O-ring

Sproull® OJS Preformance Curve

OJS06
lllustrations of Model Type
OJS150-460
OJS Single Stage Double Suction Centrifugal Pump
150 Outlet Diameter(mm)
460 impeller Diameter(mm)

Sproull® OJS Preformance parameter list

Type Speed
n(r/min)
Capacity
Q(m³/h)
Head
H(m)
Eff
η(%)
Shaft power
pa(kw)
Impeller Dia.
(mm)
NPSH
r(m)
OJS100-310 1450 148 34 78.5 17.4 325 3.1
185 31 80 19.6 325
222 26.8 77.2 21 325
OJS125-230 1450 220 17 84 12.1 245 2.3
274 14.8 85.5 12.9 245
328 12 82 13.1 245
OJS150-360 1450 357 41.3 83 48.4 355 3
446 38 85 54.3 355
536 34.2 82.7 60.4 355
OJS200-670 1450 634 157.5 77.7 350 655 3.6
792 150 80 404 655
936 140 78.2 457 655
OJS250-600 1450 994 126 83 411 610 4.6
1242 116 84 467 610
1490 105 82 520 610
OJS300-700 1450 1469 170 84 810 705 4.95
1836 160 86 941 705
2070 151 84.2 1012 705
OJS350-510 1450 2088 8 86 529 518 10
2610 70 88.5 562 518
3132 60 84.7 605 518
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® OJS Installation Drawing(Demonstration)

OJS07
Type Installation Dimensions(mm)
L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 Inlet flange Outlet flange
a1 a2 a3 a4 m-Φ1 b1 b2 b3 b4 n-Φ1
OJS150-460 1900 399 590 5 100 100 650 650 1500 400 340 295 200 24 12-Φ22 285 240 150 24 8-Φ22
L11 L12 L13 H1 H2 H3 H4 H5 H6 z-Φ1
400 780 855 861 400 250 556 200 200 6-Φ16