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 CREW ELECTRIC SUBMERSIBLE PUMP
MINING, DRAINAGE & FLOOD LIFTING MODEL SJD/FCrew_Submersible_Pumps

  • PORTABLE
  • TOUGH - SG IRON
  • EFFICIENT PERFORMANCE
  • RESETTABLE SUCTION COVER
  • AVAILABLE WITH FLOAT SWITCH
  • INSTALLATION OPTIONS INCLUDING SLIDE RAILS
  • 100% SA MANUFACTURED USING STANDARD COMPONENTS










Technical Information

Motors
Fully submersible, pressure tight oil filled electric motor this allows the pump to run in semi dry (snore) conditions. Insulation Class F. Speed 50HZ 2 pole 2880 RPM utilising standard laminations. Degree of protection IP68 COS - 0,81. Thermal protection sensors are embedded in the windings.

Protection
For protection against overheating:
220v built in thermal - ammetrical overload protection with automatic reset.
380v Thermocouple to be connected to contactor via 8m 4 core 1,5mm shielded cable - shielding used a control cable.

Shaft
20mm diameter stainless steel rotor shaft.

Bearings
Pre lubricated bearings upper radial 6204. Lower double row angular contact 3205.

Seals
Mechanical seal John Crane type 2100 silicone carbide/silicon carbide in oil and Forsheda expeller seal.


Setting Depth
Maximum immersion 20m
Liquid Density max 110kg/m3

Minimum Liquid Level

Base Type                           Min Liquid
Freestanding 3 Leg            170mm
Urethane Mop                     20mm
Urethane Mining                 170mm
Drainage Strainer               140mm


PH
3-10   :   Cast Iron
1-12   :   Stainless Steel
3-10   :   SG Iron




CREW ENGINE DRIVEN FLEXIBLE DRIVE SUBMERSIBLE PUMP FOR MINING, CONSTRUCTION, PLUMBING, RURAL WATER SUPPLY, FIRE FIGHTING

Please click on link to see Engine Driven Flexible Drive Submersible Pump leaflet

ENGINE_DRIVEN_FLEXIBLE_DRIVE_SUB_PUMPS.pdf




















 
Application 
The SJS/F models are purpose built to pump raw water to low heads for fountain and flood duties while the SJD drainage pump weighing 27kg incorporates a resettable suction cover and long life open impeller imminently suitable for high head mining duties.                                         

Design
Fully submersible, compact integrated 50HZ pump unit consisting of:
Pump
Single stage centrifugal pump with horizontal discharge

Impellers
SV= Recessed vortex impeller for liquids containing solids or a high level of impurities or fibrous matter and gas.
F2= 2 Vane large open impeller for flood lifting or circulation
D2/D3= Tough open backswept 2 to 3 vane impeller of impurities or fibrous matter containing gas.

 Materials Standard S/S
 Motor Housing
 Cast Iron GR1452
 CD.4MCU
 Pump Housing/Impeller
 SG Iron GR220
 CD.4MCU
 Rotor Shaft
 EN57 316
 Fasteners SS304 316
 Strainer SS304 316


Dimensions

Dimensions
Free standing pump with stand, strainer and base for drainage and high head mining duties



                                                                         




















Curve No
 Pump ModelSJS/F
 Motor Output
 Nominal AMPS
230V   380V    525V
Solids Capacity
 Weight (kg)
 1
 SV,12HAI
1,1
 6,7       2,8         2
 45mm
 27
 2
D31,12HAI
 1,1
 6,7       2,8         2
 4mm
 26
 3
 D31,12HAI
 1,1
 6,7       2,8         2
 8mm
 26
 4
 F1,12MAI
 1,1
 6,7       2,6         2
 25mm
 26

Equipment Supplied
Pumps with ring base stand see accessories and types of installation

 Voltage
 Designation
Type
 Max Curr
 380V
 400V
 A
 2,8
 220V
 240V
 B
 8,61
 500V
 525V
 C
 2,1
 1000V
 1050V
 D
 N/A
 415V
 430V
 E
 2,5

Type B
(230-240 Volt/1Ph): 10m of cable
NOTE: The pump requires a capacitor for operation, which is integrated in the control box (see accessories).


Tandem_Pumping
Tandem pumping doubles or trebles the pressure













Equipment Supplied
Pumps with ring base stand see accessories and types of installation.

Single Pump
Wet well installation with self coupling system

Permanent installation utilising a submerged self connecting coupling guide rail system for automatic connection and disconnection of the pump from the pipe work from outside the sump.

Advantages
Minimum space requirement, ease of pump service and maintenance.
Robust long life installation. The pump is kept in place by its own weight.

Cable
  • Submersible Black HO7 RN-F4G 1,5 Cable
  • Submersible Yellow Nitrile 3 core x 1,5mm conductors with tin copper 1 x 1,5mm Braid Safety earth sheath plus GRN/Yellow earth cable
  • Submersible Orange Permotrail 4 core 1,5mm PVC cable
Installation
Version 1:
Portable free standing footed base completely or partially submerged.

Version 2:
Semi permanent incorporates Stortz type quick coupling NRV, hose and fittings for inexpensive installation and easy maintenance.


Click on Link to see Accessories
Crew_Pump_Accessories.pdf

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