Jung Process Systems GmbH
Auweg 2 · 25495 Kummerfeld
Tel. +49 4101 7958-140 · Fax +49 4101 7958-142
info@jung-process-systems.de · www.jung-process-systems.de

Twin-screw pumps

Twin-screw pumps

CHEMSPIN INLINE – choice of couplings for simple change to twin-screw pumps

CHEMSPIN twin-screw pumps are available with different coupling orientations. INLINE versions with parallel couplings are available for pipes with continuously vertical or horizontal runs.

These versions permit simple replacement of rotary lobe or rotary piston pumps with CHEMSPIN twin-screw pumps.

CHEMSPIN twin-screw pumps can be mounted

• horizontally

• vertically upwards or downwards

• sideways to a wall

You have questions?
We will be happy to advise you.

+49 4101 80409-0

Herausforderung: Entgasen von Säften mit Fasern und Pulpen in der Getränkeindustrie

Henning Grönwoldt-Hesse

Advantages at a glance
  • Low space requirements   
    Thanks to the oppositely located couplings, the pumps can be mounted easily into existing plants.
  • Very high flexibility
    Many different products and a wide range of flow quantities and viscosities can be handled by a single pump. Reverse operation is possible – the range of different pumps in a plant can be reduced considerably.
  • Safe operation
    Loaded, abrasive or lumpy media can be conveyed – a suitable shaft seal can provide dry-run protection. Very low vibration and noise levels.
  • Low cavitation risk
    The CHEMSPIN exhibits very low NSPH values. This applies for the full operating range, also for operating points close to zero throughput. Increasing pump speeds and viscosities only have a limited effect.
  • Self-priming, able to handle entrained gas
    Outstanding suitability for emptying & transfer pumping operations.
  • High chemical resistance
    The CHEMSPIN is made of 1.4404 stainless steel as standard. Hardened pumping elements and contactless operation ensure high wear resistance.
Technical data / performance features






Max. capacity

20 m³/h

40 m³/h

100 m³/h

300 m³/h

Max. delivery pressure

4 bar

6 bar

6 bar

6 bar

Max. ø of solids

25 mm

30 mm

45 mm

67 mm

Suction capacity

NPSHr >0.5 m, suction heights up to 9 m possible


0.5 to 1 000 000 mPa·s, higher values after consultation

Pumping temperature

-10 to 180 °C, higher values on request


full CIP cleaning in the plant


SIP in the plant with steam or hot water

Product-wetted parts

Choice of 1.4404, 1.4539, or 1.4462 – other materials on request


HNBR, FPM, EPDM, FFPM, FDA approval, other elastomers on request

Shaft seals

Single and double-acting floating ring seals, with knife edge for sticky media to prevent start-up damage, single-acting, dry-run safe lip seal

Pump orientation

horizontal, vertical, or sideways (INLINE versions possible)


Different sizes and connecting standards after agreement


Compact, robust modular design for all versions, with free shaft end for sizes 70, 90, and 125


Three-phase, gear, or servo-motors (hygienic stainless steel drives as an option)


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