 DESIGN &
OPTIONS
We offer all options and level of customization as for example magnetic
drive, heating jackets, temperature monitoring sensors, high grade relief
valves, high performance motors etc, that meet your requirements.
 Gears
The gear tooth geometry has been optimized to enable high viscosities, react
to variations in viscosity and temperature during your process and finally
to reduce the sound pressure levels and pulsations. The pump works nearly
pulsation free with the appropriate gears and
maintans a constant output while temperature and viscosity varies (for
example heavy oil cold/warm).
We offer the folowing gear geometry:
- optimized straight toothing, spur gears,
- optimized helical toothing, helical gears,
- optimized herringbone toothed gears.
 Direction
of rotation, right and left
Our gear pumps can rotate in both directions, clockwise und
counterclockwise, depending on the used sealing option and gear type.
Exception: Gear pumps with herringbone toothed gears andpumpswithmagnetic
drive.
 Shapes
Depending on the implementation, we offer:
- pumps with horizontal delivery direction (ZH),
- pumps with vertical delivery direction (ZV),
- pumps in block-type design (ZK).
 Linking
and multi-flow applications

Triplex design for 3 liquid streams |
We offer linked designs for multi-flow applications:
- tandemdesign for 2 separated liquid streams,
- triplex design for 3 separated liquid streams.
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 Fittings
and connections
We offer:
- flange connections (DIN, ANSI or SAE),
- threaded connections,
- aseptic connections and fittings.
 RPM speeds
The maximum available pump speed is between 750 RPM (ZH) and 3200 RPM (ZK).
Applied working speed depends on medium properties such as temperature,
viscosity and foambuilding.
 Efficiency
Efficiency of our gear pumps is between 60 and 92% depending on the series
(GREEN or BLUE), pump size, working presssure, temperature
andmediumviscosity.
 Bearings
and mounting
Choice of the right mounting depends mainly on the properties of theworking
fluid and requested purity level:
- 4x externalmounting (no liquid contact),
- internal mounting (bearings lubricated by the medium).
Available bearings:
- standard roller bearings,
- high grade roller bearings,
- standard needle bearings,
- high grade needle bearings,
- ceramic bearings.
Available plain bearings:
- bronze,
- artificial carbon,
- silicon carbide,
- multi component bearings.
Available shafts:
- with standard hardening,
- with high grade coating.
 Heating
and cooling jackets

ZH pump with heating jacket
and 4x external bearings |
We offer jacketedpumpsto be used from-60°C to 320°C:
- Liquid heat transfer: with water, oil, cooling liquids or
steamas heat transfer medium,
- electric heating cardrige with thermostat,
- electric oil heating with heating and
- expansion tanks.
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 Sealing
We offer:
- sealing ring,
- packing,
- component mechanical seals,
- cartridge single-mechanical seals,
- cartridge double-mechanical seals.
 Seal-lessmagnetic
drive option (hermetic capsuled and explosion proof)

ZK Pump with magnetic drive |
Leak-proof gear pump with magnetic drive for hasardous and flammable liquids,
for strongly aromatic liquids and in locations and situations where leak is a
concern.
For thatwe offer:
- standardmagnetic drives,
- magnetic drive with reduced or no eddy-current for pumps with dry running
capability.
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 Power
transmission
We offer:
- flexible coupling,
- disassembling coupling,
- slip clutch with torque limiter,
- hydrodynamic coupling,
- magnetic drive,
- more couplings on request.
 Valve
We offer relief valves forpumpand plant equipment safety:
- by-pass relief valves,
- integrated relief -valves on pump.
 Motor,
drive, gears and control

Complete ZK Pump with magnetic drive, indirectly engaged, by-pass with relief
valve, temperature monitoring and electric motor. |
Motors and gears:
- Standard IEC-Norm-electricmotor,
- Gearmotor,
- DCmotor,
- hydraulicmotor,
- pneumatic/airmotor,
- combustion engine.
Control, sensors and drive:
- frequency inverter,
- flow sensors,
- temperature sensors,
- pressure sensors,
- flow counters.
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 RANGE
 Common Features
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