Submersible Electric Slurry Pumps - Goodwin India

Goodwin recommends all its submersible slurry pumps are suspended on chains, with a Bauer type adapter for coupling to the pump followed by a length of reinforced flexible hose before connecting to any rigid pipe work (shown in the photo). This enables the pump to operate correctly when it is in thick heavy slurries, as when the pump is started and slurry has settled around it there is a very high energy start as the motor is ‘direct on line’ which makes the pump kick.

As the pump is suspended on chains, the ‘kick’ it breaks away from any settled slurry allowing standing water to get to the impeller by flowing around the pump body as it has broken away from the slurry. As soon as this has happened the pumps agitator starts emitting its hydraulic shock wave sphere of influence, putting dense particles into suspension to be pumped with ease.

Goodwin hoses are supplied with PN16 flanges on both ends as standard.

Heavy Duty Slurry Discharge Hose Specification

Inner Tube: Seamless Smooth Rubber Tube Thickness 6.5 / 7.0mm

Reinforcement : Multiple Plies of High Tensile Synthetic Fabric embedded with Double Helical Wire Coils of 12swg.

Fillers: Rubber Filler, Double Layered 1.5mm Thick

Cover: Black Corrugated Rubber Cover Ageing and Weather Resistant 2mm Thick

End Connections: Each End to be Flanged 4” Table ‘D’. (215mm O/d - 4 * Ø18mm Holes on 178mm PCD) Rubber Inner Tube to extend over the raised face. The Nipple Connection made from 100mm I/d Pipe with Wall Thickness of 8mm Min, Extending into the Tube by 220mm.

Bend Radius: Flexible Construction to have a Minimum Bend Radius of 500mm

Standard Lengths: Hose Can be Supplied in Standard Lengths of 5m & 10m with a tolerance of ± 100mm

Standard Weight: 8.4kg per running meter plus flange connections.

Operating Temperature Range: Product Temperature of -20°C to + 82°C Operating Pressure: 7kg/cm2g

Verification Tests: Hydro test: 11kg/cm2g Vacuum Test: 625mm Hg Shore

Hardness: Tube: 50 Deg A (±5) Tube: 60 Deg A (±5)

Specification Revision 0 – 12.12.07

Goodwin recommends all its submersible slurry pumps are suspended on chains, with a Bauer type adapter for coupling to the pump followed by a length of reinforced flexible hose before connecting to any rigid pipe work (shown in the photo to the right). This enables the pump to operate correctly when it is in thick heavy slurries, the reason for this is described below:

When the pump is started and slurry has settled around it, it has a very high energy start as the motor is ‘direct on line’ which makes the pump kick.

As the pump is suspended on chains, the ‘kick’ it breaks away from any settled slurry allowing standing water to get to the impeller by flowing around the pump body as it has broken away from the slurry.

As soon as this has happened the pumps agitator starts emitting its hydraulic shock wave sphere of influence, putting dense particles into suspension to be pumped with ease.

The Bauer connectors can be set up in minutes while offering the flexibility of deflection at each joint up to 30°. They are robust yet user friendly connectors suitable for slurry applications. Couplings supplied will be hot dipped galvanised for corrosion resistance.

Goodwin hoses are supplied with PN16 flanges on both ends as standard. To connect to the pump we would recommend the following below, plus whatever you require to connect the other end of the hose into your system.

Using Goodwin heavy duty hose we would recommend purchasing A & C
Using your own hose we would recommend purchasing A & B

A		4” (100mm) PN16 Flanged Male Bauer Coupling Goodwin Part No: G700/6 – 10V BAUER MALE
B		4” (100mm) Hose connecting Female Bauer Coupling (O- ring supplied) Goodwin Part No: G700/7 – 10V BAUER FEMALE
C		4” (100mm) PN16 Flanged Female Bauer Coupling (O – ring supplied) Goodwin Part No: G700/5 – 10V BAUER FEMALE

The Goodwin 100mm pumps are supplied with 3 phase + earth armoured trailing cable for maximum protection against accidental damage – adding to the rugged reliability of the Goodwin submersible slurry pump.

This is tried and tested cable that is fitted to the Goodwin pump, and we will NOT supply any other cable between the pump and electrical control panel.

Distances may vary from pump to panel from installation to installation – please specify length of cable to be supplied with pump when ordering. (max cable length between pump and panel is 100m).

Cable Description

Four 10mm² power cores (3 phase + Earth)

Each core is composed of multiple stranded circular annealed tinned copper wires complying with the requirements of BS 6360.

Each core has a protective metallic screen, laid around an elastomeric centre poly-chloroprene sheathed, pliable galvanised steel armour. (Earth core un-armoured)

Outer cable protection consists of a poly-chloroprene sheathed coating the 4 armoured cores. Heavy Duty galvanised steel armour, with a plastic sheath on top.

Voltage rating: 640/1100 volt cable to BS 6708:1977 and BC Specification 504:1981.

Cable Cutaway

The durability of our cable and cable gland arrangement is so strong that customers have retrieved pumps by lifting them directly with the cable from a sump.

Goodwin always recommends that proper lifting tackle is utilized at all times and take no responsibility if a cable was to pull out if the pump (over 500kg) was lifted by it.

Custom made lifting chains are recommended so the pump is lifted from a single point. This means that the pump remains vertical at
all times, and is not lifted on an angle, which can happen on site if only one of the lifting points is used. By keeping the pump vertical
oil is kept in the correct areas to allow maximum lubrication and heat dissipation, maximizing bearing life and motor cooling.

The chains unit is supplied with two shackles to couple it directly to the Goodwin pump.

2.2 Tonnes (standard working load)
Leg Lengths 600mm
Master Links to fit 5 Tonne Lift Hook

As it is a submersible pump the shackles and chain unit come in a galvanized finish to minimize corrosion and maximize working life.

Goodwin Part No: G355/2-10Z-SA0

For lifting the slurry pump when it is in operation we recommend that a hoist with a rating of 1.5 tonnes is used. This is because when the pump is connected into a system the chain it is hanging on will also bear the weight of the pipe work and all the slurry it contains.

Additionally if the pump is positioned in a sump with settled slurry – from our experience 1.5 tonnes is usually sufficient to break the pump free of the settled slurry.