Note: Approximate Performance For Clear Water, To Be Used For Primary Selection Only.
Features
√ The unique segmented clamp ring on larger size units and solid on smaller pumps, facilitates casing rotation to any angle, reducing the need for costly high wearing bends. Minimal maintenance is required.
√ Impeller expulsion vanes reduce gland pressure and intrusion of high concentrations of solids in the gland area. Efficiency is maintained by minimising suction side recirculation.
√ Specially designed and shaped impeller vanes allow the handling of extraordinarily large particles. The unique casing design and sealing vanes prevent abrasive solids intrusion at the sealing faces.
√ The large, robust casing has been designed to reduce internal velocities resulting in minimum efficiency loss and improved casing wear life. The casing is made up of three components to reduce maintenance time and costs associated with a onepiece design. (Except the 6/4 DG which has two components)
√ Tobee heavy-duty grease lubricated taper roller bearing assemblies are fitted as standard. A rigid large diameter shaft with reduced overhang minimises deflection and vibration under all conditions ensuring trouble free operation. Unusually high service factors enable the assembly to carry all radial and axial thrusts.
√ A unique “-10” (dash 10) end cover assembly comprising of V-seals, double piston rings and an external flinger with grease lubricated labyrinths are standard with all Walker pumps
Performance Parameters
Model
Max. Power P
(kw)
Capacity Q
(m3/h)
Head H
(m)
Speed n
(r/min)
Eff. η
(% )
NPSH
(m)
Impeller Dia.
(mm)
6/4D-G
60
36-250
5-52
600-1400
58
2-5.5
378
6/4E-G
120
36-250
5-52
600-1400
58
2-5.5
378
8/6E-G
120
126-576
6-45
800-1400
60
3-4.5
391
10/8S-G
560
216-936
8-52
500-1000
65
3-7.5
533
10/8S-GH
560
180-1440
24-80
500-950
72
2.5-5
711
10/8F-G
260
216-936
8-52
400-800
65
3-7.5
533
12/10F-G
260
360-1440
10-60
350-700
65
1.5-4.5
667
12/10G-G
600
360-1440
10-60
400-850
65
1.5-4.5
667
12/10G-GH
600
288-2808
16-80
350-700
73
2-10
950
14/12G-G
600
576-3024
8-70
300-700
68
2-8
864
14/12T-G
1200
576-3024
8-70
300-700
68
2-8
864
16/14G-G
600
720-3600
18-45
300-500
70
3-9
1016
16/14T-G
1200
720-3600
18-45
300-500
70
3-9
1016
16/14TU-GH
1200
324-3600
26-70
300-500
72
3-6
1270
18/16TU-G
1200
720-4320
12-48
250-500
72
3-6
1067
Applications
G/GH heavy-duty sand & gravel pump design typically caters for high head high volume duties, The Gravel pumps are best suited to Sand & Gravels, Dredging, Cutter Suction Dredger, Sand Excavation, Coal Washing, Tunnels, Power Plant, Mineral Processing Plants, Higher head cyclone feed or Long distance pipeline duties and Other industries.