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Motor-driven Metering Pump Sigma/ 2 (Basic Type)

Capacity range 14.7 – 110.9 gph (56 - 420 l/h), 232 - 58 psi (16 - 4 bar)

Robust motor-driven metering pumps like the Sigma/ 2 Basic guarantee excellent process reliability with their patented multi-layer safety diaphragm. The diaphragm metering pump offers a number of power end versions, also suitable for use in areas at risk from explosion.

Product description

The robust pump for safe and reliable use.

The Sigma/ 2 diaphragm metering pump, together with pumps of type Sigma/ 1 and Sigma/ 3, represents an integrated product range. They cover the capacity range from 4.49 - 272.1 gph (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 ATEX areas.

Features and 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 overloading
  • Reliable operation by bleed option during the suction process

Flexible adaptation to the process:

  • The Sigma product range is available as standard in the "Physiologically safe in respect of wetted materials" “F” 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
  • Customised designs are available on request

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    Turndown Ratio

Field of application

The following list is a general representation of basically suitable applications for this product. Please contact your personal representative to discuss the use of the product in your individual application.

  • Volume-proportional addition of chemicals in water treatment, e.g. sodium-calcium hypochlorite for the disinfection of potable water
  • Addition of chemicals depending on the measured value, e.g. metering of acid and alkali for pH neutralisation in waste water treatment
  • Time-controlled addition of chemicals in the cooling water circuit
  • Pulse-controlled metering in the bottling of different volumes e.g. glycerin filling of manometers

    Waste Water Treatment

    Very low-impact treatment for waste water

    Our water treatment technology delivers thorough yet environmentally friendly waste water treatment. What's more, with precisely metered additives and optimised processes, you also save money.
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    Waste Water Treatment for electroplating

    A clean affair: waste water cleaned in an environmentally-friendly manner

    When it comes to thorough waste water treatment, we provide not just pumps, sensors and controllers, but also our comprehensive expertise in water treatment for electroplating.
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    Waste Water Treatment in the Paper and Pulp Industry

    Clean waste water is returned to nature

    Very low-impact treatment for waste water. Our intelligent processes efficiently clean and save money too.
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    Water Treatment and Water Disinfection

    Modern disinfection solutions for any kind of water

    We produce everything in house: all our products, systems and services. As well as being convenient, this is also smart. Disinfection solutions tailored to your needs offer excellent effectiveness.
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    Waste Water Treatment in Energy Generation

    Treating waste water quickly and thoroughly

    The benefits of our waste water treatment for energy generators can be easily summed up: our waste water treatment is thorough, environmentally-sound, economical and fully automatic. Because ProMinent thinks things through.
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    Waste Water Treatment in Hotels and Resorts

    Clever waste water recycling

    A suitable process for reusing waste water can make a huge contribution to efficient water management. Responsible use of resources is also increasingly something that eco-minded guests are looking for.
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    Addition of Additives in the Paper and Pulp Industry

    Lighter, smoother, more solid? The right addition is key

    Not all paper is the same. Accurately metered additives reliably give the paper certain properties, such as making it whiter or smoother or indeed both. ProMinent is fully flexible.
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    Biocide Metering in the Paper and Pulp Industry

    No clumps formed in the production of paper

    Perfectly metered liquid biocides prevent the formation of slime and therefore the dreaded and expensive formation of clumps in paper machines. So operations can continue unaffected.
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    Utility Water Treatment

    It makes economic sense to reuse process water.

    Why would you discharge water just because you've used it once? If this water is treated properly, it can be reused with ease, cutting costs in no time.
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    Chlorine Disinfection

    Various procedures are used to disinfect swimming pool water. Alongside the conventional metering of chlorine, use of cost-effective and environmentally-friendly electrolysis systems is also worthwhile for private pools.
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    CIP - Cleaning In Place

    CIP gets to work exactly where it's needed

    Small volumes of disinfectant are produced and used on site for sterile machines and process water. Highly concentrated, dangerous chemicals and tedious disassembly are a thing of the past.
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    Disinfection of Potable Water

    Germ-free potable water thanks to disinfection

    As an essential nutrient, water must satisfy very strict quality controls. ProMinent offers sophisticated disinfection technology that reliably removes viruses, bacteria and microorganisms.
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    Metering of Chemicals in the Test Centre

    Passing the test: consistent 100% accuracy in fluid metering

    Our reliable metering pumps produce impressive results in testing. They meter fluids precisely and continuously, making it easy to optimise process parameters.
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    Metering Chemicals in Coolant Treatment

    The secret of a highly durable coolant system

    We treat coolants with small quantities of chemicals, reducing the environmental footprint while protecting the system against corrosion, deposits and biological growth.
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    Metering of Fluids in Chemical Production

    Incredible versatility: metering pumps in production

    There are various types of metering pumps, but what they all have in common is reliability, robustness and thoroughness. That's why all our pumps are in demand in chemical production.
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    Metering of Belt Lubricants

    Keeping everything running smoothly in beverage production

    Before a bottle is ready to go on the shelf, it passes through many machines in the bottling plant. There is a high price to pay if the belts come to a stop. Metered lubricants ensure smooth running.
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    Bottle Washing Machines

    Correct metering is key

    Perfectly metered cleaning chemicals effectively improve the cleaning quality of bottle washing machines. As an extra bonus, you save energy too.
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    Flocculation in Public Swimming Pools

    Metering flocculants delivers optimum filtration

    Flocculants allow the smallest of particles to be removed from the swimming pool water. In turn, our high-precision solenoid metering pumps enable the precise and continuous supply of small volumes of these flocculants.
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    Large bakeries

    Baking with reproducible quality

    A large share of the bakery products we consume today are manufactured by machine. Producing goods that taste just right requires precise metering of the individual ingredients.
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    Cooling Water Treatment

    Efficiency is everything in the cooling water circuit

    Everything at ProMinent revolves around the perfect cooling water circuit, which needs to experience few losses over its long life. The precise metering of inhibitors and biocides and suitable filters make this possible.
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    Cooling Water Treatment in Energy Generation

    No biofilm, no bacteria, no dangerous by-products

    ProMinent metering pumps allow you to keep your cool at all times as you no longer need to concern yourself with the cooling process. Alternative biocides reliably prevent deposits.
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    Production of whey and cheese

    Perfect water for the entire production process

    To guarantee an end product fit for purpose, ProMinent ensures optimum water quality at every stage of production, thereby reliably complying with statutory hygiene standards.
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    Flue Gas Cleaning in Energy Generation

    Flue gas cleaning for fresh air and a clean environment

    ProMinent understands how to incorporate the complex flue gas cleaning process in power plants. Harmful substances are reliably removed from the air before they enter the atmosphere.
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    Feed Water Treatment in Energy Generation

    ProMinent-style desalinated boiler feed water

    Our water treatment know-how delivers desalinated and therefore high-quality, ultra-pure boiler feed water. No energy or water is lost with ProMinent.
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    Potable Water Treatment

    Outstanding water quality in line with global WHO standards

    ProMinent turns water into hygienically perfect potable water – with powerful systems and components, which can be ready mounted for operation or individually configured.
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    Electrolytic Metal Extraction in Mining

    Off you go - metering systems ready to use immediately

    Do you need a quick metering solution? Our complete mining systems come fully ready mounted and are installed in no time. Tailored to the customer, they deliver excellent storage and metering results.
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    Monitoring and Replenishing of Electroplating Baths

    Demanding baths require concentration

    Baths have to be monitored and replenished continually. This requires high concentration - from the sensors, controllers and pumps. Yet only small amounts of precisely fed chemicals are needed.
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    Metering of Fluids

    Incredibly simple and efficient metering of chemicals

    We transport chemicals with ease in any industrial environment: ProMinent solutions store, transfer and meter substances at rates of 0.1 l/h to 100,000 l/h at a pressure of 2 to 3,000 bar.
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    Technical Details

    • Stroke length: 5 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 is available: Three-phase standard AC motor, 1-phase AC motor, motors for use in areas at risk from explosion 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

    Pump capacity at max. back pressure with 1800 rpm motor at 60 Hz

    Suction lift

    Perm. pre-pressure suction side

    Connector Suction/Discharge Side

    Shipping weight

    Max. stroke rate

    S2Ba

    gph | l/h

    psi

    ml/stroke

    Strokes/min

    ft | m WC

    psi

    inches

    lb | 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

    15.8 | 60.0

    145

    11.4

    87

    23 | 7

    44

    1/2 MNPT

    33.1 | 15

    16050 SST

    14.7 | 56.0

    232

    11.4

    87

    23 | 7

    44

    1/2 FNPT

    44.1 | 20

    16090 PVT

    28.0 | 106.0

    145

    11.4

    158

    23 | 7

    44

    3/4 MNPT

    33.1 | 15

    16090 SST

    25.9 | 98.4

    232

    11.4

    158

    23 | 7

    44

    1/2 FNPT

    44.1 | 20

    16130 PVT

    42.8 | 162.0

    145

    10.9

    238

    23 | 7

    44

    3/4 MNPT

    33.1 | 15

    16130 SST

    39.0 | 148.0

    232

    10.9

    238

    23 | 7

    44

    1/2 FNPT

    44.1 | 20

    07120 PVT *

    39.6 | 150.0

    102

    27.4

    87

    16 | 5

    15

    3/4 MNPT

    35.3 | 16

    07120 SST *

    39.6 | 150.0

    102

    27.4

    87

    16 | 5

    15

    3/4 MNPT

    52.9 | 24

    07220 PVT *

    69.7 | 264.0

    102

    27.7

    158

    16 | 5

    15

    3/4 MNPT

    35.3 | 16

    07220 SST *

    69.7 | 264.0

    102

    27.7

    158

    16 | 5

    15

    3/4 MNPT

    52.9 | 24

    04350 PVT *

    110.9 | 420.0

    58

    29.4

    238

    16 | 5

    15

    1 MNPT

    35.3 | 16

    04350 SST *

    110.9 | 420.0

    58

    29.4

    238

    16 | 5

    15

    1 MNPT

    52.9 | 24

    Performance data for TTT, see type PVT

    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

    ** Specifically for areas at risk from explosion

    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

    TTT **

    PTFE + 25% carbon

    Carbon-filled PTFE

    PTFE/PTFE

    Ceramic/glass *

    -

    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 specificationPower supplyΔ/Y   
    M1-phase AC230 V50/60 Hz  
    N1-phase AC115 V60 Hz  
    S3-phase230 V/400 V50/60 Hz  

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

    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.

    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.

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    Overview

    The robust pump for safe and reliable use.

    The Sigma/ 2 diaphragm metering pump, together with pumps of type Sigma/ 1 and Sigma/ 3, represents an integrated product range. They cover the capacity range from 4.49 - 272.1 gph (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 ATEX areas.

    Features and 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 overloading
    • Reliable operation by bleed option during the suction process

    Flexible adaptation to the process:

    • The Sigma product range is available as standard in the "Physiologically safe in respect of wetted materials" “F” 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
    • Customised designs are available on request

    Video

    Application

    Technical Data

    Downloads

    Find local ProMinent representative

    Contact us

    ProMinent Fluid Controls, Inc.


    sales-us@prominent.com

    +1 412-787-2484   
    sales-us@prominent.com Send request    

    »We are looking forward to your enquiry.«

    +1 412-787-2484 

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