Goodwin Submersible Pumps

Product Range

Submersible
Slurry Pumps

DWHH - Dirty Water
High Head Pump

Acid Resistant
Slurry Pumps

The core of the Goodwin range of submersible pumps is the ANZE slurry pump. Developed and optimised for over four decades, this pump is capable of pumping the heaviest and most difficult slurry around. Available in three sizes of electrical motor and outlet diameter the ANZE slurry pump is a real workhorse for process industry.


The range of slurry pumps is further expanded with the NZE and HNZB pumps. NZE pumps are designed for low flow applications and the HNZB pumps are designed for high head applications. Both are available in the same 3 electrical motor sizes and outlet diameters as the ANZE pumps.

For pumping dirty, slurry contaminated water, Goodwin offers the DWHH pump. Available in two sizes, these are multi stage pumps designed to generate a high head.

For aggressive chemical environments Goodwin developed the Super Duplex Stainless Steel “SDSS” acid resistant ANZE slurry pump. Constructed with all slurry contact parts made from corrosion resistant alloys, these pumps will reliably operate where other pumps will rapidly fail.

100
NZE
100
ANZE
100
HNZB
150
NZE
150
ANZE
150
HNZB
200
NZE
200
ANZE
200
HNZB
100
DWHH
150
DWHH
100
SDSS
ANZE
Max solid content
(by weight)
65% 65% 25% 65% 65% 40% 65% 65% 40% 10% 10% 65%
Max slurry
specific gravity kg/l
2.8 2.8 1.5 2.5 2.1 1.5 2.5 2.1 1.5 1.1 1.1 2.8
Max particle size 25mm 32mm 12mm 54mm 45mm 30mm 76mm 76mm 40mm 10mm 10mm 32mm
Max slurry
temperature
90°C 90°C 90°C 90°C 90°C 90°C 90°C 90°C 90°C 90°C 90°C 90°C
Max flow m3/h 137 220 160 380 500 460 600 800 800 195 195 220
Max head
(pressure bar)
33m
(3.2 bar)
38m
(3.7 bar)
60m
(5.9 bar)
25m
(2.4 bar)
38m
(3.7 bar)
53m
(5.2 bar)
27m
(2.6 bar)
40m
(3.9 bar)
53m
(5.2 bar)
130m
(12.8 bar)
190m
(18.6 bar)
38m
(3.7 bar)
Max sumbergence
depth *
28m 28m 28m 28m 28m 28m 28m 28m 28m 28m 28m 28m
 

* 28m as standard, can be deeper if required
** See page 21+22 of brochure PDF for more information

All pump designs and information is subject to change, upgrade and revisions

Features That Make Goodwin Number One

Goodwin heavy duty slurry pumps are designed with outstanding features that guarantee exceptional performance. Precision engineering and robust construction gives reliable operation in the most demanding conditions.

Cable

Goodwin can supply a range of cables specially selected and tested for use with slurry pumps. For 100 size pumps cable is supplied with galvanised steel armouring to protect against damage. The IP68 rated cable gland seals against both the inner and outer sheaths, so even if the outer sheath is damaged water cannot ingress to the electrical connections.

Motor Windings

High temperature winding materials allow the pump to operate reliably even when media temperatures are over 90°C.

Rotor End Rings & Rotor Bars

The Goodwin pump uses high quality brass end rings and bars in the rotor that are brazed together. Brazed brass construction is proven as being more robust and reliable than die cast alternatives when the pumps are subjected to high energy Direct On Line (DOL) starts.

Oil Filled Motor Housing

The Goodwin pump motor runs submerged in oil that lubricates and cools the bearings and the mechanical seal. The oil dissipates heat from the hottest part of the motor to the high mass stator housing that acts as a heat sink, eliminating motor hot spots which can give premature motor winding failure.

Cooling of the Motor Housing

The Goodwin pump benefits from forced convection cooling by nature of the pumped fluid passing around the motor housing before it leaves the pump. This allows the pump to run for extended periods of time even if it is run semi-submerged. This is an integral part of the design and makes the requirement of additional motor cooling unnecessary.

Twin Volute Casing

To balance the load on the pump shaft, bearings and mechanical seal, Goodwin use a twin volute casing, reducing vibration and extending the life of all component parts especially the mechanical seal.

Bearings

Generously oversized to give extended life when pumping high specific gravity slurries.

Removable Discharge Elbow

The 150 and 200mm Goodwin Pumps are supplied with a removable and replaceable discharge elbow made from precipitation hardened Stainless Steel.

Non-Pressurised Mechanical Seal

Suitable for submergence depth up to 28 metres as standard. The Goodwin mechanical seal is only subjected to the pressure from the submergence depth of the pump which generally is only a few metres of head and not the discharge pressure of the product. This greatly reduces the chance of fluid ingress into the motor itself and the destructive consequences which can result. The seal is positioned directly below the lower bearing to give it maximum support and protection from vibration.

Heavy Duty Wet-End Parts

The wet end of all Goodwin slurry pumps are made of NiHard alloy. For very abrasive applications Goodwin can offer tungsten carbide coated impellers, inducers and wear plates as it is possible to coat 100% of the rotating surface exposed to the slurry and thus provide the customer with excellent component life. Closed vane impeller designs have surfaces which can’t be tungsten carbide coated. 150 and 200 size slurry pumps have tungsten carbide coated wet end parts as standard. For 100 size pumps, coating is optional.

Open Vane Impeller

This feature assists the breakdown of large particles in the impeller that might ultimately lead to a blocked pump. There is little if any chance of the impeller becoming blocked as opposed to closed vane impellers which are often blocked and tend to stay blocked.

Inducer

To reduce the bending moment on the shaft, when it comes into contact with large particles, the Goodwin inducer is kept as close as possible to the lower bearing.

(Click on the hilighted areas to discover more)

Features that make
Goodwin Number One

Goodwin can supply a range of cables specially selected and tested for use with slurry pumps. For 100 size pumps cable is supplied with galvanised steel armouring to protect against damage. The IP68 rated cable gland seals against both the inner and outer sheaths, so even if the outer sheath is damaged water cannot ingress to the electrical connections.

High temperature winding materials allow the pump to operate reliably even when media temperatures are over 90°C.

The Goodwin pump uses high quality brass end rings and bars in the rotor that are brazed together. Brazed brass construction is proven as being more robust and reliable than die cast alternatives when the pumps are subjected to high energy Direct On Line (DOL) starts.

The Goodwin pump motor runs submerged in oil that lubricates and cools the bearings and the mechanical seal. The oil dissipates heat from the hottest part of the motor to the high mass stator housing that acts as a heat sink, eliminating motor hot spots which can give premature motor winding failure.

The Goodwin pump benefits from forced convection cooling by nature of the pumped fluid passing around the motor housing before it leaves the pump. This allows the pump to run for extended periods of time even if it is run semi-submerged. This is an integral part of the design and makes the requirement of additional motor cooling unnecessary.

To balance the load on the pump shaft, bearings and mechanical seal, Goodwin use a twin volute casing, reducing vibration and extending the life of all component parts especially the mechanical seal.

Generously oversized to give extended life when pumping high specific gravity slurries.

The 150 and 200mm Goodwin Pumps are supplied with a removable and replaceable discharge elbow made from precipitation hardened Stainless Steel.

Suitable for submergence depth up to 28 metres as standard. The Goodwin mechanical seal is only subjected to the pressure from the submergence depth of the pump which generally is only a few metres of head and not the discharge pressure of the product. This greatly reduces the chance of fluid ingress into the motor itself and the destructive consequences which can result. The seal is positioned directly below the lower bearing to give it maximum support and protection from vibration.

The wet end of all Goodwin slurry pumps are made of NiHard alloy. For very abrasive applications Goodwin can offer tungsten carbide coated impellers, inducers and wear plates as it is possible to coat 100% of the rotating surface exposed to the slurry and thus provide the customer with excellent component life. Closed vane impeller designs have surfaces which can’t be tungsten carbide coated. 150 and 200 size slurry pumps have tungsten carbide coated wet end parts as standard. For 100 size pumps, coating is optional.

This feature assists the breakdown of large particles in the impeller that might ultimately lead to a blocked pump. There is little if any chance of the impeller becoming blocked as opposed to closed vane impellers which are often blocked and tend to stay blocked.

To reduce the bending moment on the shaft, when it comes into contact with large particles, the Goodwin inducer is kept as close as possible to the lower bearing.