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Motor-Driven Metering Pump Sigma/ 3 (Basic Type)

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  • Motor-Driven Metering Pump Sigma/ 3 (Basic Type)

Capacity range 146 – 1,030 l/h, 12 – 4 bar

The patented multi-layer safety diaphragm for excellent process reliability is just one feature of the extremely robust motor-driven metering pump Sigma/3 Basic. It also offers a wide range of power end versions, such as three-phase or 1-phase AC motors, also for use in ATEX areas.

The Robust Pump for Safe and Reliable Use

The Sigma/ 3 diaphragm metering pump together with pumps of type Sigma/ 1 and Sigma/ 2 represent an integrated product range. They cover the capacity range from 17 to 1,030 l/h, with a consistent operating concept, control concept and spare parts management. A wide range of power end versions is available, including some for use in areas at risk from explosion.

Your benefits

Excellent process reliability:

  • 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 (optionally electric) signalling
  • Integrated relief valve protects the pump against overload
  • Reliable operation ensured by bleed option during the suction process

Flexible adaptation to the process:

  • The entire Sigma product range is available as standard in a ‘Physiologically safe in respect of wetted materials’ design.
  • Metering pumps with electro-polished stainless steel metering head enable them to be used in hygienically challenging applications
  • Wide range of power end versions, also for use in areas at risk from explosion, and different flange designs for the use of customised motors

Technical Details

  • Stroke length: 6 mm,
  • Stroke length adjustment range: 0 – 100%
  • Stroke length adjustment: manually using self-locking rotary dial in 1% increments (optionally with actuator or control drive)
  • With the right, constant conditions, correct installation and calibration, precision exceeds ±1 %, based on maximum stroke volume.
  • Wetted materials: PVDF, stainless steel 1.4571/1.4404, special materials on request
  • Patented multi-layer safety diaphragm with optical diaphragm rupture display (as option with diaphragm rupture warning system via a contact)
  • Integrated hydraulic relief and bleed valve
  • A wide range of power end versions are available: Three-phase standard AC motor, 1-phase AC motor, motors for use in Exe and Exde areas and different flange designs for use in customer-specific motors
  • For areas at risk from explosion II 2G Ex h IIC T3 Gb X or II 2G Ex h IIC T4 Gb X (optional)
  • IP 55 degree of protection
  • High-strength fibreglass-reinforced plastic housing with excellent chemical resistance

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 with 1500 rpm motor at 50 Hz Capacity at max. back pressure at 60 Hz Suction lift Perm. pre-pressure suction side Connector Suction/Discharge Side Shipping weight
Max. stroke rate Max. stroke rate
S3Ba l/h bar ml/stroke Strokes/min psi l/h / gph (US) Strokes/min m WC bar G-DN kg
* Only available for 50 Hz.
** DN32 plate valves with valve spring
120145 PVT 146 10 33.7 72 145 174/45.9 86 5 2 1 1/2–25 22
120145 SST 146 12 33.7 72 174 174/45.9 86 5 2 1 1/2–25 26
120190 PVT 208 10 33.7 103 145 251/66.3 124 5 2 1 1/2–25 22
120190 SST 208 12 33.7 103 174 251/66.3 124 5 2 1 1/2–25 26
120270 PVT 292 10 33.8 144 145 351/92.7 173 5 2 1 1/2–25 22
120270 SST 292 12 33.8 144 174 351/92.7 173 5 2 1 1/2–25 26
120330 PVT * 365 10 33.8 180 – – – 5 2 1 1/2–25 22
120330 SST * 365 12 33.8 180 – – – 5 2 1 1/2–25 26
070410 PVT 410 7 95.1 72 102 492/129.9 86 4 1 2–32 ** 24
070410 SST 410 7 95.1 72 102 492/129.9 86 4 1 2–32 ** 29
070580 PVT 580 7 95.1 103 102 696/183.8 124 4 1 2–32 ** 24
070580 SST 580 7 95.1 103 102 696/183.8 124 4 1 2–32 ** 29
040830 PVT 830 4 95.1 144 58 1,000/264.1 173 3 1 2–32 ** 24
040830 SST 830 4 95.1 144 58 1,000/264.1 173 3 1 2–32 ** 29
041030 PVT * 1,030 4 95.1 180 – – – 3 1 2–32 ** 24
041030 SST * 1,030 4 95.1 180 – – – 3 1 2–32 ** 29

Performance data for TTT, see type PVT

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 Ceramic 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 Ceramic Stainless steel 1.4404 Stainless steel 1.4581 Ceramic/E-CTFE Stainless steel 1.4404 –

Motor Data

Identity code specification Power supply Δ/Y Remarks
S 3-phase, IP 55* 230 V/400 V 50 Hz 0.37 kW
T 3-phase, IP 55* 230 V/400 V 50 Hz 0.37 kW With PTC, speed control range 1:5
265 V/460 V 60 Hz 0.37 kW
R 3-phase, IP 55* 230 V/400 V 50 Hz 0.55 kW With PTC, speed control range 1:20 with external fan (1-phase 230 V; 50/60 Hz, 134 W)
M 1-phase AC, IP 55 230 V ± 5 % 50 Hz 0.55 kW
L1 3-phase, II2GExellT3 220 – 240 V/380 – 420 V 50 Hz 0.37 kW
L2 3-phase, II2GExdllCT4 220 – 240 V/380 – 420 V 50 Hz 0.37 kW With PTC, speed control range 1:5

Motor data sheets can be requested for more information. Versions 265/460V – 60Hz, special motors or special motor flanges are available on request.

In accordance with the Eco Design Directive 2009/125/EC, motors of less than 0.75 kW and motors designed for operation with variable speed are not subject to the IE3 standard.

Information for use in areas at risk from explosion

Only use pumps with the appropriate labelling in line with the ATEX Directive 2014/34/EC in premises at risk from explosion. Ensure that the explosion group, category and degree of protection specified on the label correspond to or are superior to the conditions prevalent in the intended application.

Motor-Driven Metering Pump Sigma/ 3 (Basic Type) Kataloğu

Deha Smart

Meclis Mah. Atatürk Cad. B2 No:109 G İç Kapı No:13 Sancaktepe / İstanbul

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