The MAKRO hydraulic diaphragm metering pump (M5Ha) together with the MAKRO diaphragm and plunger metering pumps form an integrated product range with stroke lengths of 20 or 50 mm. This covers the capacity range from 38 to 6108 l/h at 320 – 4 bar. Makro/5 metering pumps are available for many applications in both high and low pressures and can be used in ATEX certified environments to ensure that they can be used in explosive hazardous areas.

 

Your benefits

Safety and Reliability:

• PTFE multilayer diaphragm with integral diaphragm rupture warning system to help prevent pump leaks and contamination
• Integral hydraulic relief valve
• Metering reproducibility is better than ± 1% within the 10-100% stroke length range under defined conditions and with correct installation.

Flexibility:

• The single-head and double-head module structure can be configured with a variety of drive options, Dual-head design can operate in push-pull mode
• It is possible to combine up to 4 metering units, even with different pump capacities, in multiple pump systems
• 5 different gear ratios are available

 

Technical Details

• Stroke length: 0 – 50 mm, Rod force: 10,000 N
• Stroke length adjustment range: 0 – 100%
• Stroke length adjustment: manually by means of a manual adjustment wheel and scaled display (optionally with electric actuator or control drive)
• Metering reproducibility is better than ± 1 % within the 10 – 100% stroke length range under defined conditions and with correct installation
• PTFE multi-layer diaphragm with electrical diaphragm rupture warning system via a contact
• Integrated hydraulic relief and bleed valve
• Wetted materials: PVDF, PTFE+25% carbon, stainless steel 1.4571, special materials are available on request
• A wide range of drive versions is available: Three-phase standard motors, motors for use in areas at risk from explosion and different flange
• designs for use in customer-specific motors
• Degree of protection: IP 55
• Design in compliance with API 675 among others

 

Type	Capacity at max. back pressure with 1500 rpm motor at 50 Hz				Capacity at max. back pressure with 1800 rpm motor at 60 Hz				Suction lift	Suction/discharge side connector	Plunger Ø
				Max. stroke rate				Max. stroke rate
	l/h	bar	ml/stroke	Strokes/min	l/h	psi	gph (US)	Strokes/min	m WC	G-DN	mm
* SST design with G 2 1/2″
250450	450	25	125.0	60	537	362	142	72	3.0	G 2-32	60
250562	562	25	125.0	75	671	362	177	89	3.0	G 2-32	60
250772	772	25	125.0	103	922	362	244	123	3.0	G 2-32	60
250997	997	25	125.0	133	1,191	362	315	159	3.0	G 2-32	60
251170	1,170	25	125.0	156	–	–	–	–	–	G 2-32	60
160616	616	16	171.2	60	736	232	194	72	3.0	G 2 1/4-40	70
160770	770	16	171.2	75	920	232	243	89	3.0	G 2 1/4-40	70
161058	1,058	16	171.2	103	1,264	232	334	123	3.0	G 2 1/4-40	70
161366	1,366	16	171.2	133	1,633	232	431	159	3.0	G 2 1/4-40	70
161602	1,602	16	171.2	156	–	–	–	–	3.0	G 2 1/4-40	70
120716	716	12	199.0	60	855	174	226	72	3.0	G 2 1/4-40	75
120895	895	12	199.0	75	1,069	174	282	89	3.0	G 2 1/4-40	75
121229	1,229	12	199.0	103	1,469	174	388	123	3.0	G 2 1/4-40	75
121588	1,588	12	199.0	133	1,898	174	501	159	3.0	G 2 1/4-40	75
121862	1,862	12	199.0	156	–	–	–	–	3.0	G 2 1/4-40	75
120919	919	12	255.3	60	1,098	174	290	72	3.0	G 2 1/4-40	85
121148	1,148	12	255.3	75	1,372	174	362	89	3.0	G 2 1/4-40	85
121577	1,577	12	255.3	103	1,885	174	498	123	3.0	G 2 1/4-40	85
122037	2,037	12	255.3	133	2,435	174	643	159	3.0	G 2 1/4-40	85
122389	2,389	12	255.3	156	2,856	–	754	–	3.0	G 2 1/4-40	85
101345	1,345	10	374.0	60	1,607	145	425	72	3.0	G 2 3/4-50	100
101680	1,680	10	374.0	75	2,008	145	530	89	3.0	G 2 3/4-50	100
102310	2,310	10	374.0	103	2,761	145	729	123	3.0	G 2 3/4-50	100
102980	2,980	10	374.0	133	3,562	145	941	159	3.0	G 2 3/4-50	100
103500	3,500	10	374.0	156	–	–	–	–	3.0	G 2 3/4-50	100
062305 *	2,305	6	641.0	60	2,755	87	728	72	3.0	Flange–65	130
062880 *	2,880	6	641.0	75	3,443	87	910	89	3.0	Flange–65	130
063960 *	3,960	6	641.0	103	4,734	87	1,251	123	3.0	Flange–65	130
065110 *	5,110	6	641.0	133	6,108	87	1,614	159	3.0	Flange–65	130
066000 *	6,000	6	641.0	156	–	–	–	–	3.0	Flange–65	130

PPT/PCT/TTT material version max. 10 bar

 

Materials in Contact with the Medium

Identity code of material	Dosing head	Connection on suction/discharge side	DN 32 – DN 65 seals	Valve plates/valve springs	Valve seats
SST	Stainless steel 1.4571/1.4404	Stainless steel 1.4571/1.4404	PTFE	Hastelloy C	PTFE
PCT	PVC	PVC	PTFE	Hastelloy C	PTFE
PPT	Polypropylene	Polypropylene	PTFE	Hastelloy C	PTFE
TTT	Carbon-filled PTFE	Carbon-filled PTFE	PTFE	Hastelloy C	PTFE

Special designs available on request

 

Field of application

The following list of applications is a general example of applications for which this product is generally suitable.
If necessary, you can contact us and we will find out the suitable product according to your requirements.

• Oil and gas industry.
• Volume-proportional metering of chemicals/additives in the treatment of boiler feed water
• Metering of reactants and catalysts in the chemical industry
• Level-dependent metering of auxiliary agents in industrial production engineering, for instance hot wax metering in the production of adhesive strips