Motor-Driven Metering Pump Sigma X Control Type – Sigma/ 3 – S3Cb

Capacity range S3Cb: 182 – 1,040 l/h, 12 – 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 Range – Reliable, Smart and Connectible

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 relief valve protects the pump against overloading and reliable operation by means of a bleed option during the metering process.
  • 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: 6 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 (420 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.
  • Metering profiles for optimum metering results.
  • Display of wear parts in the Service menu.
  • Connector for 2-stage level switch.
  • Connection to PROFINET using the ProMinent DULCOnvert PROFIBUS®-PROFINET converter
  • Various relay modules can be selected.
  • Variants with EU 1935/2004, FDA or hygienic design can be selected for food and other applications.
  • Wetted materials: PVDF, stainless steel 1.4571/1.4404, special materials on request.
  • Dosing heads with electro-polished stainless steel for aqueous media are available on request for applications with strict hygiene requirements.
  • We are happy to supply alternative material versions to comply with export conditions for pump capacities of >600 l/h and PVDF.
  • 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
S3Cb l/h bar ml/stroke Strokes/min gph (US) psi m WC bar G-DN kg
* DN32 plate valves with valve spring
120145 PVT 182 10 33.7 90 48.0 145 5 2 1 1/2–25 22
120145 SST 182 12 33.7 90 48.0 174 5 2 1 1/2–25 26
120190 PVT 243 10 33.7 120 64.1 145 5 2 1 1/2–25 22
120190 SST 243 12 33.7 120 64.1 174 5 2 1 1/2–25 26
120270 PVT 365 10 33.8 180 96.4 145 5 2 1 1/2–25 22
120270 SST 365 12 33.8 180 96.4 174 5 2 1 1/2–25 26
070410 PVT 500 7 95.1 90 132.0 102 4 1 2–32 * 24
070410 SST 500 7 95.1 90 132.0 102 4 1 2–32 * 29
070580 PVT 670 7 95.1 120 176.9 102 4 1 2–32 * 24
070580 SST 670 7 95.1 120 176.9 102 4 1 2–32 * 29
040830 PVT 1,040 4 95.1 180 274.7 58 3 1 2–32 * 24
040830 SST 1,040 4 95.1 180 274.7 58 3 1 2–32 * 29

Materials in Contact with the Medium

DN 25 ball valves DN 32 plate valves
Identity code of material Seals Suction / discharge connection on dosing head DN 25 Valve balls Valve seats Suction / discharge connection on dosing head DN 32 Valve plates/valve springs Valve seats Integral relief valve
* With design ‘F’, the ball seat is made of PVDF, only for DN 25 ball valves
** The valve spring is coated with CTFE (resistance similar to PTFE)
*** Specifically for areas at risk from explosion
**** DN 25 and DN 32 designed as ball non-return valve
PVT PTFE PVDF Glass PTFE * PVDF Ceramic/Hastelloy C + CTFE ** PTFE PVDF/FKM or EPDM
SST PTFE Stainless steel 1.4581 Stainless steel 1.4404 PTFE * Stainless steel 1.4581 Stainless steel 1.4404/Hastelloy C PTFE Stainless steel/FKM or EPDM
TTT *** PTFE PTFE + 25% carbon Stainless steel 1.4404 PTFE * PVDF Ceramic/Hastelloy C + CTFE ** PTFE
PVF PTFE PVDF Glass PVDF
SSF PTFE Stainless steel 1.4581/1.4404 Stainless steel 1.4404 PVDF
SSG PTFE Stainless steel 1.4581/1.4404 Stainless steel 1.4404 Stainless steel 1.4404
SSH **** EPDM or FKM Stainless steel 1.4435 Stainless steel 1.4404 Stainless steel 1.4404 Stainless steel 1.4581 Ceramic/E-CTFE Stainless steel 1.4404

Motor Data

Identity code specification Power supply Remarks
U 1-phase, IP 65 100 – 230 V ±10 % / 240 V ±6 % 50/60 Hz 420 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.