Piston dosing pumps

Piston dosing pumps are particularly precise dosing units, which are not dependent on pressure. The dosing capacity varies proportionally with the stroke length and can be set to the tiniest repeatable quantities. Two-piston pumps are therefore particularly suitable for delivering precise mixtures, where different media must be mixed at a constant ratio which can be selected as desired. Using externally controlled drive motors, the total quantity can be adjusted continuously between 5% and 100% at a constant ratio. Heated heads allow the dosing of media that are torpid when cold. A piston flushing skirt is available as an option, to prevent damaging leakage and protect the packing materials and pistons from abrasive substances.

FEDOS E/DX

A classic piston dosing pump: tradition meets innovative technology

The FEDOS E and FEDOS DX combine the properties of the FEDOS series working reliably for many years with the latest requirements in metering technology.

Due to an improved flexibility and the further development of individual components, it can be integrated even more efficiently in metering processes. Heads and pistons are the same as for the previous pumps so that the continuity of spare parts keeping and service is ensured.

Product information

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FEDOS E

FEDOS DX

REKOS KR/ZKR

The large piston dosing pump: power meets precision

REKOS pumps are available as Type KR single-piston dosing pumps and Type ZKR double-piston dosing pumps. The advantages of the piston dosing pump are its low dependence on the back pressure and the linear change in dosing quantity with the stroke length.

These dosing pumps are therefore well-suited to proportional dosing, where the stroke length is changed in dependence on a remote control signal.

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REKOS KR/ZKR

Our complete range of piston dosing pumps

REKOS CCNR

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FEDOS E

FEDOS E - the classic piston metering pump! The FEDOS E is used when no control unit is required for constant dosing. The motor is connected directly to the terminal box. Rotary and alternating current motors are available for the FEDOS E. To adjust the dosing capacity, the stroke length can be adjusted mechanically or the speed of the three-phase motor can be controlled with a separate frequency converter. An electric actuator is optionally available to control the stroke length. Features & benefits Suitable for precise mixing tasks Capacity range 0.17 to 31.5 l/h, up to 100 bar Low dependence on back pressure Linear change in dosing quantity with the stroke length Automatic stroke length adjustment (optional) plunger drive with easy-to-operate capacity adjustment Suitable for frequency converter operation Optional flushing lantern

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FEDOS DX

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REKOS KR

REKOS KR/ZKR - Large piston dosing pump!The REKOS pumps are available as single piston dosing pumps type KR and double piston dosing pumps type ZKR. The advantages of the piston dosing pump are the low dependence on the back pressure and the linear change in dosing quantity with the stroke length. These dosing pumps are therefore ideal for proportional dosing, where the stroke length is changed depending on a remote control signal. Features & advantages Suitable for proportional dosing Available as single or double-head pump Standard version single pumps left-sided dosing head arrangement Standard design double-head pumps Dosing head arrangement diagonal or parallel depending on size Capacity range 9 - 420 l/h per dosing head, up to 200 bar Different capacity ranges can be combined Low dependency on back pressure Linear change in dosing quantity with the stroke length Electric actuator to control the stroke length (optional) Suitable for frequency converter operation Motors available in AC and three-phase versions

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