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Diaphragm metering pumps are leak-proof and therefore suitable for very aggressive or toxic media. Depending on the gear type, the diaphragm provides up to 16 bar pressure. Diaphragm metering pumps are equipped with a separation chamber as standard. If a crack occurs in the diaphragm due to wear, this prevents the media from flooding the system components or the pump itself. The media is controlled and flows through a downpipe into the collection basin. The medial sides of the diaphragms are coated with PTFE.
The dosage amount can be doubled by using two dosing heads. The largest motor-driven diaphragm dosing pump (Type GMR) has a hydraulically connected double diaphragm system
Minidos A
Smallest motor-driven diaphragm dosing pump
The MINIDOS A series is the result of a consistent, ongoing development of proven technology and the use of modern plastics. With dosing rates of 3 l/h up to 39 l/h the MINIDOS leak-proof diaphragm dosing pump has a wide range of applications. The MINIDOS A is available as single dosing pump with the dosing head mounted on the right-handside.
PVC, PVDF and stainless steel dosing head
Double-ball valves (standard) or spring-loaded single-ball valves
Separation chamber between dosing head and gearbox, with drainage pipe
Three-phase sectional motor (standard) or AC operation
Compact form
Gearing components and bearings are lifetime lubricated
Stroke adjustment either manually or electrically (ATE)
Stroke counter with inductive detector for charge-processes (optional)
Downloads
Catalog: Minidos A.pdf
User Manual : Minidos A PI .pdf
Minidos A
Smallest motor-driven diaphragm dosing pump
The MINIDOS A series is the result of a consistent, ongoing development of proven technology and the use of modern plastics. With dosing rates of 3 l/h up to 39 l/h the MINIDOS leak-proof diaphragm dosing pump has a wide range of applications. The MINIDOS A is available as single dosing pump with the dosing head mounted on the right-handside.
PVC, PVDF and stainless steel dosing head
Double-ball valves (standard) or spring-loaded single-ball valves
Separation chamber between dosing head and gearbox, with drainage pipe
Three-phase sectional motor (standard) or AC operation
Compact form
Gearing components and bearings are lifetime lubricated
Stroke adjustment either manually or electrically (ATE)
Stroke counter with inductive detector for charge-processes (optional)
Downloads
Catalog: Minidos A.pdf
User Manual : Minidos A PI.pdf
Minidos E
Smallest motor-driven diaphragm dosing pump
The MINIDOS A series is the result of a consistent, ongoing development of proven technology and the use of modern plastics. With dosing rates of 3 l/h up to 39 l/h the MINIDOS leak-proof diaphragm dosing pump has a wide range of applications. The MINIDOS A is available as single dosing pump with the dosing head mounted on the right-handside.
PVC, PVDF and stainless steel dosing head
Double-ball valves (standard) or spring-loaded single-ball valves
Separation chamber between dosing head and gearbox, with drainage pipe
Three-phase sectional motor (standard) or AC operation
Compact form
Gearing components and bearings are lifetime lubricated
Stroke adjustment either manually or electrically (ATE)
Stroke counter with inductive detector for charge-processes (optional)
Downloads
Catalog: Minidos E.pdf
User Manual : Minidos E PI.pdf
Memdos LB
Riding on the crest of the waves
The MEMDOS LB is used when the integration of the pump into controls or control circuits is required. Thanks to the sturdy tappet drive with manual or automatic capacity adjustment, the conveyed media such as acids, lyes, coagulants and flocculants are dosed reliably and precisely. To adapt the dosing capacity, either the stroke length can be adjusted mechanically or the speed of the three-phase engine can be regulated by means of a separate frequency converter. On request, the MEMDOS LB pumps can also be supplied with a double-diaphragm system.
Capacity range 4 – 1020 l/h, up to 16 bar
Power supply 115 V, 230 V or 400 V
Material finishes PVC, PP, PVDF and stainless steel
Infinitely variable stroke length from 0 – 100 %
A variety of three-phase and alternating current motors
ATEX versions are available for Zones 1 and 2
Also suitable for frequency converter operation
Double-diaphragm system (optional)
Automatic stroke length adjustment (optional)
Downloads
Catalog: Memdos LB.pdf
User Manual : Memdos LB PI.pdf
Memdos LA
Riding on the crest of the waves
The MEMDOS LA is equipped with a diverse range of inputs and outputs and can thus be deployed for complex dosing tasks. It can be controlled via a 0/4 – 20 mA current input and an external release input. At the same time, it indicates its current operating state via a fault output (alarm relay) and an optocoupler output (stroke feedback). The pump is fitted with a 0 – 20 mA analogue output.
The MEMDOS LA is compatible with all conventional control systems.
The pump is also fitted with a level input, can evaluate suction lines directly using a low level alarm and its large functional scope means that it can be deployed in a number of areas.
Output range from 0.5 – 15 l/h, up to 16 bar
Power supply 230 V ±10 %, 50/60 Hz, IP65
or 115 V ± 10%, 50/60 HzDosing head ventilation
Suitable for wall and floor mounting
Material finishes PVC, PP, PVDF
Stroke frequency can be precisely adjusted via the keyboard
Graphic display
Analogue Input settable 0/4 – 20 mA
Level input with early warning and main alarm
Release input for external start/stop
CSA and UL certified
Downloads
Catalog: Memdos LA.pdf
User Manual : Memdos LA PI.pdf
Memdos LP
Riding on the crest of the waves
The MEMDOS LP is used when the integration of the pump into controls or control circuits is required. For integration into demanding automation networks, a version with an Ethernet-based MODBUS interface is available. Thanks to the sturdy tappet drive with manual or automatic capacity adjustment, the conveyed media such as acids, lyes, coagulants and flocculants are dosed reliably and precisely. On request, the MEMDOS LP pumps can also be supplied with a double-diaphragm system.
Output range 4 – 1020 l/h, up to 16 bar
Power supply 230 V, ± 5 %, 50/60 Hz
Material finishes PVC, PP, PVDF and stainless steel
Stroke frequency can be precisely adjusted via the keyboard
Precise pump adjustment via the keyboard
Graphic display with multi-language menu
Analog input 0/4 – 20 mA
Pulse input (increase and reduce)
Level input with early warning and main alarm
Release input for external start/stop
Supply amount displayed in various units
Maximum delivery rate can be limited
Stroke feedback output
Batch dosing with interval and timer functions
Dosing control input
Alarm relay output
Analog output 0/4 – 20 mA
Diaphragm rupture detection and reporting (optional)
Double-diaphragm system (optional)
Ethernet interface (optional)
Downloads
Catalog: Memdos LP.pdf
User Manual : Memdos LP.pdf
Memdos MRI
Powerful motor-driven diaphragm dosing pump
Diaphragm dosing pumps of the MEMDOS MR series have been developed for a broad range of applications. Thus they are used in the industrial sector, in process engineering and very frequently in water and waste water treatment. They are leakproof. Standard versions are with the head located on the left-hand side. dosing pumps with the head on the right-hand side can be supplied. Duplex dosing pumps are available with the head combinations shown in the following tables. The heads are arranged in diagonals.
PP and stainless steel dosing heads
Double-ball valves (up to MR 290)
Spring-loaded flat-seat valves (starts with MR 400)
Spring-loaded single-ball valves (optional)
Separation chamber between dosing head and gearbox, with drainage pipe
Stroke adjustment either manually or electrically (ATE)
Duplex head pumps (optional)
Stroke counter with inductive detector for charge-processes (optional)
Frequency converter controlling (optional)
Downloads
Catalog: Memdos MR.pdf
User Manual : Memdos MR PI.pdf
Memdos GMR
Big motor-driven diaphragm dosing pump
Double diaphragm dosing pumps of the MEMDOS GMR series can be supplied as single or duplex dosing pumps. The pumps are used to meter large quantities at relatively low back pressures. They are frequently used in waste-water treatment to meter pH-regulating chemicals or flocculents.
Double diaphragm dosing pump
Single or duplex dosing head pump
2000 to 4000 l/h (single dosing head)
Medium side of EPDM separating diaphragm coated with PTFE
Single ball valves
Drive: AC or DC motor
Stroke counter with inductive detector for charge-processes (optional)
Frequency converter controlling (optional)
Downloads
Catalog: Memdos GMR.pdf
User Manual : Memdos GMR PI.pdf