Motor Metering Pumps Sigma with Multilayer Safety Diaphragm

The motor pumps of the Sigma series are equipped with a patented multilayer safety diaphragm and a visual diaphragm rupture indicator. The multilayer safety diaphragm guarantees that no leakages to the outside occur if the diaphragm ruptures.

In connection with a mechanical indicator or alarm, a reliable metering is guaranteed any time. Optionally, continued metering
or a stopping of the metering pump can be selected in case of diaphragm rupture.

High level of reliability and availability of the pump and the process:
Immediate response if the diaphragm is damaged
Low breakdown costs:
Continued metering in emergency operation up to an appropriate time for process interruption is possible
Safety of the process and the operator:
The metering medium still remains in the liquid end and cannot leak to the outside into the environment.
Cost savings with regard to pump maintenance because no preventive diaphragm replacement is required
Low maintenance costs because easy maintenance/service of the new diaphragm technology
Multilayer safety diaphragm with PTFE coating on both sides
With sensor area to trigger a mechanical indication or an alarm
After diaphragm rupture alarm, alternatively continued metering or stopping of the metering pump

Application focuses

Chemical industry
Process industry
Water and waste water systems

Technical Data Sigma/ 1

	at 50 Hz			at 60 Hz
Type S1Ba/S1Ca	bar	l/h	strokes/min.	psi	l/h/gph	strokes/min.	suction lift mWS	connector dimensions G-DN
12017	12	17	73	174	20/5.2	88	7	¾"/10
12035	12	35	143	174	42/ 11.1	172	7	¾"/10
10050*	10	50	200	145	60/ 15.9	240	7	¾"/10
10022	10	22	73	145	26/ 6.9	88	6	¾"/10
10044	10	44	143	145	53/ 14	172	6	¾"/10
07065*	7	65	200	100	78/ 20.6	240	6	¾"/10
07042	7	42	73	100	50/ 13.2	88	3	1"/15
04084	4	84	143	58	101/ 26.7	172	3	1"/15
04120*	4	120	200	58	144/ 38	240	3	1"/15

* For the pump types S1Ca, the 60 Hz performance data apply (because internal 60 Hz operation), however, with max. 200 strokes/min.

Technical Data Sigma/ 2

	at 50 Hz			at 60 Hz
Type S2Ba/S2Ca	bar	l/h	strokes/min.	psi	l/h / gph	strokes//min.	suction lift mWS	connector dimensions G - DN
16050	10/16	50/48	73	145/232	60 / 15.9	87	7	1 - 15
16090	10/16	90/86	132	145/232	108 / 28.5	156	7	1 - 15
16130*	10/16	130/125	198	145/232	156 / 41.2	232	7	1 - 15
07120	7	120	73	100	144 / 38	87	5	1 1/2 - 25^*
07220	7	220	132	100	264 / 69.7	156	5	1 1/2 - 25^*
04350**	4	350	198	58	420 / 111	232	5	1 1/2 - 25^*

* For the Sigma control types, the 60 Hz performance data apply (because internal 60 Hz operation), however, at max. 200 strokes/min.
** For the Sigma types 07120, 07220 and 04350, the valves in the liquid end are designed in DN 25 (G 1 1/2). Since DN 20 is normally sufficiently large for the piping of these versions (see technical data, connection suction/pressure side), the connecting parts available for ordering in the Identcode (e.g. inserts) are already reduced to DN 20, i.e. piping and accessories can be executed in DN 20.

Technical Data Sigma/ 3

	at 50			at 60 Hz
Type S3Ba / S3Ca	bar	l/h	strokes/min.	psi	l/h/gph	strokes/min.	suction lift mWS	connector dimensions G-DN
120145 PVT	10	145	72	145	174/46	86	5	1½-25
120145 SST	12	145	72	174	174/46	86	5	1½-25
120190 PVT	10	190	103	145	228/60,2	124	5	1½-25
120190 SST	12	190	103	174	228/60,2	124	5	1½-25
120270 PVT	10	270	144	145	324/85,6	173	5	1½-25
120270 SST	12	270	144	174	324/85,6	173	5	1½-25
120330 PVT*	10	330	180	145	-	-	5	1½-25
120330 SST*	12	330	180	174	-	-	5	1½-25
070410 PVT	7	410	72	100	492/130	86	4	2-32
070410 SST	7	140	72	100	492/130	86	4	2-32
070580 PVT	7	580	103	100	696/183,9	124	4	2-32
070580 SST	7	580	103	100	696/183,9	124	4	2-32
040830 PVT	4	830	144	58	1000/264	173	3	2-32
040830 SST	4	830	144	58	1000/264	173	3	2-32
041030 PVT*	4	1030	180	58	-	-	3	2-32
041030 SST*	4	1030	180	58	-	-	3	2-32

*For the Sigma control types, the 60 Hz performance data apply (because internal 60 Hz operation), however, at max. 200 strokes/min.

Materials in contact with chemicals Sigma/ 1, Sigma/ 2, Sigma/ 3

Type	Liquid end	Suction/pressure	Gaskets	Valve balls (DN 10-25)	Plate/spring (DN 32)	Integrated overflow valve
PVT	PVDF (polyvinylidene fluoride)	PVDF (polyvinylidene fluoride)	PTFE	Ceramic DN 10/15 Glas DN 25	Ceramic / Hast.C +CTFE	PVDF / FPM* or EPDM
SST	Stainless steel 1.4404	Stainless steel 1.4581	PTFE	Stainless steel 1.4401	Stainless steel 1.4401 / Hast.C	Stainless steel / FPM* or EPDM