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 vulcanized 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 occurs. In case of diaphragm rupture, the metering 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 metering even in critical operation modes.

Advantage

Higher diaphragm lifetime, lower maintenance costs, higher process safety: integarted 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 process quality: Reproducibility of dosage better than ± 2 %
Borad field of application, easily adapted to existing processes due to its modular design.

Application Areas

The addition of chemicals based on measured values, e.g. acid and caustic metering for pH neutralization in wastewater treatment
Metering of treatment agents in industrial production technology
Time-controlled metering of chemicals for ion exchange regeneration

Features

Performance range for the single pump: 68 - 555 gph (260 – 2,100 L/h), 174 - 58 psig (12 - 4 bar)
Supplied as a single or dual-headed version
Push-pull operation of the liquid ends with dual head designs
Add on p[umps can easily be retrofitted on site if necessary
Each pump has its own independent stroking frequency due to its own internal gear reducer
Worm gear in 5 optional reduction ratios (4 for 60 Hz) as well as an adjustable crank drive via a sliding eccentric cylinder
Stroke length: 0 - 0.39" (0 - 10 mm), can be set for 0.5 % precision increments
Stroke length setting: manual (automatic optional with actuator)
Stroke rate: Standard speed motor or variable automatic capacity adjustment
Gear housing: cast housing with a coorosion resistant acrylic resin lacquer finish
Liquid end materials: Polypropylene, PVC, PTFE with carbon, stainless steel
Patented multilayer diaphragm, even with diaphragm rupture detection, hydraulic fluid and metered chemical remain separated
Repeatable accurancy 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 RPM at 50 Hz					with motor 1800 RPM at 60 Hz
Pump type Makro TZMb	psig	bar	gph	L/h	strokes/ min.	psig	bar	gph	L/h	strokes/ min.	Suction lift mWS	Connector size G-DN
120260	174	12	68	260	72	174	12	82	312	86	5	DN 25 - 1" MNPT
120340	174	12	89	340	96	174	12	108	408	115	5	DN 25 - 1" MNPT
120430	174	12	113	430	120	174	12	136	516	144	5	DN 25 - 1" MNPT
120510	174	12	134	510	144	174	12	162	612	173	5	DN 25 - 1" MNPT
120650	174	12	169	640	180	174	12	-	-	-	4	DN 25 - 1" MNPT

070430	100	7	113	430	72	100	7	136	516	86	3.5	DN32 - 1 1/2" MNPT
070570	100	7	150	570	96	100	7	180	684	115	3.5	DN32 - 1 1/2" MNPT
070720	100	7	190	720	120	100	7	228	864	144	3.5	DN32 - 1 1/2" MNPT
070860	100	7	227	860	144	100	7	272	1,032	173	3.5	DN32 - 1 1/2" MNPT
071070	100	7	282	1070	180	100	7	-	-	-	3.5	DN32 - 1 1/2" MNPT

040840	58	4	221	840	72	58	4	226	1,008	86	3	DN 40 - 1 1/2" MNPT
041100	58	4	290	1,100	96	58	4	348	1,320	115	3	DN 40 - 1 1/2" MNPT
041400	58	4	369	1,400	120	58	4	443	1,680	144	3	DN 40 - 1 1/2" MNPT
041670	58	4	441	1,670	144	58	4	529	2,004	173	3	DN 40 - 1 1/2" MNPT
042100	58	4	554	2,100	180	58	4	- / -	- / -	-	3	DN 40 - 1 1/2" MNPT

Materials coming into contact with metering medium during metering head action

			1" (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	PTFE with carbon	PTFE	Ceramic	PTFE	PTFE	Ceramic / Hast. C **	PTFE
SST	Stainless steel	Stainless steel	PTFE	Stainless steel	PTFE	PTFE	Hast. C	PTFE