GATHER Centrifugal pump

The magnetically coupled process pump  

The magnetically coupled process pump

GATHER Industrie GmbH’s magnetically coupled mini centrifugal pump is a modern process pump for the pulsation-free metering, conveying and circulating of water, salt solutions, acids, alkalis and solvents, amongst other things.

With three different geometrical variants, flow rates ranging from 20 l up to 3600 l per hour can be attained at differential pressures up to 5 bar (see also operating data and flow rate characteristic diagram). Similar to the gear pump, it has internal wash borings and channels for efficient cooling and fluid circulation.

The magnetic coupling ensures a contactless torque transmission from the drive to the pump shaft. It is not subject to wear and tear and is absolutely maintenance-free. Together with its established slide bearings technology and simple design, the GATHER centrifugal pump represents a cost-effective, robust multi-purpose pump which is extremely quiet in operation. 


Characteristics

  • 1. Magnetic coupling – hermetically sealed
  • 2. Pulsation-free delivery & dosing
  • 3. Non-lubricating liquids
  • 4. Cooling magnetic system & slide bearings
  • 5. Robust design and long service-life
  • 6. Low-noise operation

GATHER Mini centrifugal pump

At a glance

1. Magnet coupling – hermetically sealed

The magnetic coupling ensures contactless torque transmission from the drive to the pump shaft. Unlike mechanical seals, it is not subject to wear and tear and is absolutely maintenance-free. It is hermetically sealed and there is no leakage of the pumped medium. This is a decisive factor, especially with concentrated, aggressive media and those that are hazardous to health. In addition, it allows easy pump head replacement in practice. 

2. Pulsation-free delivery & dosing – modular system for a large operating range

Due to the operation of the centrifugal pump, a pulsation-free, flexibly adjustable flow rate can be attained. The speed-dependent delivery characteristic enables a wide flow rate range with differential pressures up to 5 bar. With three geometric variants, flow rates can be attained within operating ranges between 20 and 3600 l per hour.

3. Use of non-lubricating liquids – GATHER material expertise

Operation with non-lubrication liquids is made possible, amongst other things, by using chemically resistant and high-precision manufactured materials. The pump body and shafts are made of stainless steel, Hastelloy® or titanium, the slide bearings e.g. of carbon or plastic. The range of viscosities is between ν = 0,3 mm2/s bis 100 mm2/s.

4. Cooling magnetic system & slide bearings by internal circulation

Internal flushing channels and holes convey a small part of the flow from the delivery side through the slide bearings and back to the suction side. This leads to the internal cooling of the magnetic system and the slide bearings. In addition, the necessary sliding film is created on the slide bearings which ensures a durable functionality.

5. Robust design and long service life

The use of the magnetic coupling, the internal cooling system, the pump concept and the high precision of the components result in a very robust design with an extremely long service life. Depending on the application (medium) the pumps operate maintenance-free.

6. Low-noise operation

Due to its construction type, the pump is characterized by low-noise operation. The noise development is almost limited to the engine noise.

GATHER Centrifugal pump

Operating data at a glance

CharacteristicProperty
Materials housing & shafts

Stainless steal, Hastelloy®, titanium and special alloys

Media

Non-lubricating and lubricating liquids

Viscosity

ν = 0,3 mm2/s up to 100 mm2/s resp. from 90°C hot water up to concentrated caustic soda (50%)

Flow rates / pressure
see flow rate characteristics
Series 1

20 – 300 l/h up to 2,5 bar

Series 2

60 – 1.000 l/h up to 3,0 bar
120 – 2.000 l/h up to 5,0 bar
480 – 3600l/h up to 5,0 bar

Temperature

T = -5  up to +100°C
(as special version -200 up to +450°C)

Explosion classes

Locations 1, 2 und 22, temperature classes T1 … T6 resp. 100 K below glowing temperature of dust deposits (location 22)

Cleaning

Cleaning in Place (CIP)

GATHER Centrifugal pump

Flow rate characteristics


Do you have any questions about GATHER‘s centrifugal pump?

GATHER Industrie

GATHER Industrie GmbH
Lise-Meitner-Straße 4
42489 Wülfrath
GERMANY

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