Motor-Driven Metering Pump Sigma X Control Type – Sigma/ 2 – S2Cb

Capacity range S2Cb: 61 – 353 l/h, 16 – 4 bar

The Sigma control type is a smart motor-driven metering pump that is setting new standards in terms of productivity, reliability and safety.

The New Sigma X Family – Reliable, Smart and With Scope for Networking

The Sigma X diaphragm metering pump covers a capacity range of 21 to 1,040 l/h in versions S1Cb, S2Cb and S3Cb. Its patented multi-layer safety diaphragm guarantees maximum process reliability. Efficient protection of the power end from overloading by means of an integral frequency converter with microprocessor control(ler).

One highlight is the standardised operating concept with click wheel and 4 additional operating keys on a removable operating unit. A large illuminated LCD and a 3-LED display for operating, warning and error messages, visible from all sides, offers additional operating convenience.

The Sigma, like all smart ProMinent metering pumps, can be flexibly connected to various bus systems.

It has a large adjustment range thanks to a combination of frequency and stroke length adjustment. The pump works with high precision across the entire frequency range. Accurate and complication-free metering of viscous and gaseous media by adjustment of the movement profile.

Operating statuses are simply remotely transmitted via an additional output or relay module. A built-in timer, included as standard, controls time-dependent metering cycles.

Relevant spare parts can be shown in the display. The integral logbook significantly improves process management, optimisation and troubleshooting.

Your benefits

  • Safe: In the event of an accident, the feed chemical does not escape to the outside nor into the pump’s power end, thanks to the patented multi-layer safety diaphragm with optical signalling (electrical as an option).
  • Integrated overload shut-down in the pump control to protect the pump from overloading and thus significantly reduce pressure surges caused by blockages.
  • External control is scalable via potential-free contacts with pulse step-up and step-down, batch mode or via a 0/4-20 mA standard signal.
  • Can be flexibly networked: Connection to process management systems via integral PROFIBUS®.
  • Integral log book saves up to 300 events and simplifies troubleshooting and analysis of the cause.

Technical Details

  • Stroke length: 5 mm
  • Stroke length adjustment range: 0 – 100%
  • Stroke length adjustment: manually using self-locking rotary dial in 1 % increments
  • With the right, constant conditions, correct installation and calibration, precision exceeds ±1 %, based on maximum stroke volume.
  • Power supply: 1-phase, 100 – 230 V ±10%, 240 V ±6%, 50/60 Hz (220 W)
  • Degree of protection IP 65
  • Fibreglass-reinforced plastic housing
  • Manual or external contact mode can be set, factor with external contact control 99:1 – 1:99; batch mode with max. 99,999 strokes/start pulse.
  • Display of wear parts in the Service menu.
  • Connector for 2-stage level switch.
  • Connection to PROFINET using the ProMinent DULCOnvert PROFIBUS®-PROFINET converter.
  • Variants with EU 1935/2004, FDA or hygienic design can be selected for food and other applications. Hygienic design liquid ends are available for applications with stringent hygiene requirements.
  • Various relay modules can be selected.
  • Wetted materials: PVDF, stainless steel 1.4571/1.4404, special materials on request
  • Customised designs are available on request.

For reasons of safety, provide suitable overflow devices during installation for all mechanically deflected diaphragm metering pumps.

Technical Data

Type Capacity at max. back pressure Max. stroke rate Pump capacity at max. back pressure Suction lift Perm. pre-pressure suction side Connector Suction/Discharge Side Shipping weight
S2Cb l/h bar ml/stroke Strokes/min gph (US) psi m WC bar G-DN kg
* For the Sigma types 07120, 07220 and 04350, the dosing head is fitted with DN 25 (G 1 1/2) valves. As DN 20 is generally sufficient for the pipework for these types (see technical data, suction/discharge side connector), the connector parts that can be ordered with the identity code (e.g. inserts) are already reduced to DN 20, i.e. DN 20 pipework and accessories can be installed.
16050 PVT 61 10 11.4 90 16.1 145 7 2 1–15 15
16050 SST 56 16 10.4 90 14.8 232 7 2 1–15 20
16090 PVT 109 10 11.4 160 28.8 145 7 2 1–15 15
16090 SST 99 16 10.3 160 26.2 232 7 2 1–15 20
16130 PVT 131 10 10.9 200 34.6 145 7 2 1–15 15
16130 SST 129 16 10.9 200 34.1 232 7 2 1–15 20
07120 PVT * 150 7 27.4 90 39.6 102 5 1 1 1/2–25 16
07120 SST * 150 7 27.4 90 39.6 102 5 1 1 1/2–25 24
07220 PVT * 271 7 27.7 160 71.6 102 5 1 1 1/2–25 16
07220 SST * 271 7 27.7 160 71.6 102 5 1 1 1/2–25 24
04350 PVT * 353 4 29.4 200 93.3 58 5 1 1 1/2–25 16
04350 SST * 353 4 29.4 200 93.3 58 5 1 1 1/2–25 24

Integrated relief valve, connector for DN 10 pressure hose sleeve

Materials in Contact with the Medium

Identity code of material Dosing head Connection on suction/discharge side Seals/ball seat Balls Integral relief valve
* With 07120, 07220, 04350
PVT PVDF PVDF PTFE/PTFE Ceramic/glass * PVDF/FKM or EPDM
SST Stainless steel 1.4404 Stainless steel 1.4581 PTFE/PTFE Stainless steel 1.4404 Stainless steel/FKM or EPDM
PVF PVDF PVDF PTFE/PTFE Ceramic/glass * PVDF/FKM or EPDM
SSF Stainless steel 1.4404 Stainless steel 1.4581 PTFE/PTFE Stainless steel 1.4404 Stainless steel/FKM or EPDM
SSG Stainless steel 1.4404 Stainless steel 1.4581 PTFE/stainless steel 1.4404 Stainless steel 1.4404
SSH Stainless steel 1.4435 Stainless steel 1.4435 EPDM or FKM/stainless steel 1.4435 Ceramic

Motor Data

Identity code specification Power supply Remarks
U 1-phase, IP 65 100 – 230 V ±10 % / 240 V ±6 % 50/60 Hz 220 W Wide-range voltage power unit

Motors less than 0.75 kW and motors designed for speed-controllable operation are not subject to the IE3 standard in compliance with the Ecodesign Directive 2009/125/EC.