Makro TZ Diaphragm Metering pump

The motor-driven diaphragm metering pump Makro TZMb because of its modular design is excellently suited to being adapted to the performance requirements of the particular application. A great variety of options is available for its operation, either one or two liquid ends and one or several add-on pumps which the customer can fit at a later stage.

A multi-layer safety diaphragm is the core of the liquid end. The large surface steel core is vulcanised in a chemical and temperature-resistent EPDM material and reinforced with polyamide fibre additionally.

The diaphragm is double-faced and coated with PTFE foil on the gear and work sides. This ensures that even in case of diaphragm rupture no leakage to the exterior occurrs. In case of diaphragm rupture, the dosing medium reaches the area between the diaphragm layers and, thanks to the special sensor area of the diaphragm, there, an alarm is activated. This concept of diaphragm sensing grants reliable dosing even in critical operation modes.

Advantages

Higher diaphragm lifetime, lower maintenance costs, higher process safety: integrated alarm signal on diaphragm rupture with excess pressure recognition, even if diaphragm rupture occurs, there is no leakage of the fluid thanks to the latest diaphragm technology.
High processing quality: Reproducibility of dosage better than ±2 %
Broad field of application, easily adapted 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

Performance range for the single pump: 260 – 2,100 l/h, 12 – 4 bar
Supplied as a single or dual-headed version
Push-pull operation of the liquid ends with dual head designs
Can be easily upgraded to a triple pump and with reduced back pressure to more pumps even at the customer’s premises
Independent of the main metering pump , other stroke counts can be achieved with the add-on pumps, as each TZ add-on pump has its own reducing gear
Standard drive: dual wound three-phase motor 230/400 V, 50/60 Hz, 0.75 kW, enclosure class rated IP 55 (optional ATEX-T3/T4), insulation class F
Worm gear in 5 optional reduction ratios as well as an adjustable crank drive via a gyrating cylinder
Stroke length: 0 - 10 mm, can be set for 0.5% precision
Stroke length setting: manual (optional with actuator or variable speed drive)
Gear housing: cast iron, resistant to seawater, acrylic resin lacquer finish
Liquid end materials: Polypropylene, PVC, PTFE with carbon, stainless steel 1.4571
Patented multilayer diaphragm, even with diaphragm rupture, hydraulic fluid and dosing chemical remain separated
Reproducibility of dosing better under defined conditions and correct installation ± 2 % (stroke length 30-100%)
Integrated alarm signal with diaphragm rupture and excess pressure recognition
Suction lift varies with density and viscosity of the medium as well as the connecting pipework and the number of strokes

Technical Data Main Pump

Pump type Makro TZMb	with motor 1500 Upm at 50 Hz			with motor 1800 Upm at 60 Hz
Pump type Makro TZMb	bar	l/h	strokes/min.	psi	l/h / gph	strokes/min.	Suction lift mWS	Connector size G DN
120260	12	260	72	174	312 / 82	86	4	1 1/2 - 25
120340	12	340	96	174	408 / 108	115	4	1 1/2 - 25
120430	12	430	120	174	516 / 136	144	4	1 1/2 - 25
120510	12	510	144	174	612 / 162	173	4	1 1/2 - 25
120650	12	640	180	174	-	-	4	1 1/2 - 25

070430	7	430	72	100	516 / 136	86	3,5	2 - 32
070570	7	570	96	100	684 / 180	115	3,5	2 - 32
070720	7	720	120	100	864 / 228	144	3,5	2 - 32
070860	7	860	144	100	1032 / 272	173	3,5	2 - 32
071070	7	1070	180	100	-	-	3,5	2 - 32

040840	4	840	72	58	1008 / 266	86	3	2 1/4 - 40
041100	4	1100	96	58	1320 / 348	115	3	2 1/4 - 40
041400	4	1400	120	58	1680 / 443	144	3	2 1/4 - 40
041670	4	1670	144	58	2004 / 529	173	3	2 1/4 - 40
042100	4	2100	180	58	- / -	-	3	2 1/4 - 40

Materials coming into contact with dosing medium during dosing head action

			DN 25 Ball Valves			DN 32 / DN 40 Plate Valves **
	Liquid End	Suction/ Pressure connector	Seals	Valve balls	Valve seat	Seals	Valve plate / Valve Spring	Valve seat
PPT	Polypropylene	PVDF	PTFE	Duran 50	PTFE	PTFE	Ceramic / Hast. C **	PTFE
PCT	PVC	PVDF	PTFE	Duran 50	PTFE	PTFE	Ceramic / Hast. C **	PTFE
TTT	PTFE with carbon	PVDF	PTFE	Ceramic	PTFE	PTFE	Ceramic / Hast. C **	PTFE
SST	Stainless steel W.Nr. 1.4571	Stainless steel W.Nr. 1.4581	PTFE	Stainless steel W.Nr. 1.4401	PTFE	PTFE	Hast. C	PTFE