Makro/ 5 Diaphragm Metering pump

The motor-driven diaphragm metering pump Makro/5 is characterised by its modular design for add-ons. With the option of one or two liquid ends and one or several add-on pumps, its performance can be enhanced up to a maximum of 20,000 l/h.

Advantages

High processing reliability: Powerful, reliable and extremely robust
High processing quality: Reproducibility of dosage better than ±2 %
Broad field of application, easily adapted later even by the customer because of its modular design.

Areas of application

The addition of chemicals based on measured values, e.g. acid and alkali dosing for pH neutralisation in wastewater treatment
Dosing of treatment agents in industrial production technology
Time-controlled dosing of chemicals for ion exchange regeneration

Features

The drive unit is designed for operating two liquid ends with an output of 2 x 4,000 l/h
Can be increased to 20,000 l/h by adding up to three add-on pumps, and with reduced back pressure up to four add-on pumps (the use of an installation frame is necessary).
Back pressure 4 bar
Push-pull operation of the liquid ends with dual head designs
Standard drive: Spur gear motor 3 kW (optional 5.5 KW), 230/400 V, 50/60 Hz, enclosure class rated IP 55 (optional ATEX-T3/T4), insulation class F
Stroke displacement 0-20 mm
Stroke length setting: manual (optional with variable speed drive)
Optional electronic frequency converter for speed control, enclosure class rated IP54, with monitor for monitoring the temperature of the motor
Optional stroke sensor with NAMUR signal for exact recording of each dosing stroke, suitable for batch dosing or proportional dosing
Gear housing: Cast iron, resistant to seawater, acrylic resin lacquer finish
Liquid end materials: Polypropylene, PVC, PTFE with carbon, stainless steel 1.4571/1/4404
Reproducibility of dosing better under defined conditions and correct installation ± 2 % (stroke length 30-100%)
Suction lift varies with density and viscosity of the medium as well as the connecting tubing and the number of strokes

Technical Data for the Main Pump

Pump type Makro M5Ma	Capacity at max. back pressure			max. stroke frequency	Suction lift	Connector Suction/Pressure side	Shipping weight
	bar	l/h	ml/Hub	strokes/min.	mWs	G-DN	kg
041540	4	1540	427	60	3	2 3/4"-50	320
041900	4	1900	427	75	3	2 3/4"-50	320
042600	4	2600	427	103	3	2 3/4"-50	320
043400	4	3400	427	133	3	2 3/4"-50	320
044000	4	4000	427	156	3	2 3/4"-50	320

Materials in touch with medium at liquid end version

Pump type	Liquid end	Suction pressure connector	DN 50 Plate valvesseals	Valve plates/valve springs	Valve seats
PPT	Polypropylene	Polypropylene	PTFE	Ceramic/Hast. C + CTFE *	PTFE
PCT	PVC	PVC	PTFE	Ceramic/Hast. C+ CTFE *	PTFE
TTT	PTFE with carbon	PTFE with carbon	PTFE	Ceramic/Hast. C+ CTFE *	PTFE
SST	stainless steel W.Nr. 1.4571/1.4404	stainless steel W.Nr. 1.4571/1.4404	PTFE	stainless steel 1.4404/Hast. C	PTFE