Sigma plunger pump – durable and high-performance
The plunger metering pump Sigma/ 2 (Basic Type) (SBKa) is a metering pump, the pump capacity of which can be precisely adjusted in 0.2% increments, either manually or optionally with an electric actuator An actuator is used to move the adjustment spindle for the stroke length adjustment of a ... more in the glossary or control drive. A wide range of power end versions is available for use in areas at risk from explosion with ATEX certification.
Your benefits
Excellent process safety and reliability:
- Metering reproducibility is better than ± 1% within the 10 – 100% stroke length range under defined conditions and with correct installation
Flexible adaptation to the process:
- Wide range of power end versions, also for use in Exe and Exde areas and different flange designs for the use of customised motors
- Customised designs are available on request
Field of application
The following list of applications are general examples of generally suitable applications for this product. Please contact your local sales representative to talk about the applicable use of this product in your specific case / environment.
- Volume-proportional metering of chemicals in the treatment of boiler feed water
- Metering of reactants and catalysts in the chemical industry
- Level-dependent metering of auxiliary agents in industrial production engineering, for instance hot wax metering in the production of adhesive strips
Technical Details
- Stroke length: 15 mm
- Stroke length adjustment range: 0 – 100%
- Stroke length adjustment: manually by self-locking rotary dial in 0.2% increments (optionally with electric actuator or control drive)
- Metering reproducibility is better than ± 1 % within the 10-100% stroke volume adjustment range under certain defined conditions and with correct installation
- Wetted materials: Stainless steel 1.4571/1.4404, special materials are available on request
- High-performance oxide ceramic plunger
- A wide range of power end versions is available: Three-phase standard motor, 1-phase AC motor, motors for use in areas at risk from explosion and different flange designs for use in customer-specific motors
- Degree of protection IP 55
- Highly rigid fibreglass-reinforced plastic housing with excellent chemical resistance
- Provide suitable overload protection in all plunger metering pumps during installation for safety reasons
Control of Sigma Basic type SBKa
Stroke length actuator/control drive
Actuator for automatic stroke length adjustment, actuating period approx. 1 second for 1 % stroke length, return potentiometer 1 kΩ degree of protection IP 54.
Control drive consisting of an actuator and an integral servo controller for stroke length adjustment via a standard signal. Standard current input 0/4-20 mA corresponds to stroke length 0 - 100%. Switch-over for manual/automatic operation, key switch for stroke adjustment in manual mode, mechanical position display of actual stroke length value output 0/4-20 mA for remote display.
Variable speed motors with integrated frequency converter (identity code specification V)
Power supply 1-phase 230 V, 50/60 Hz, 0.37 kW
Externally controllable with 0/4-20 mA (see Fig. pk_2_103).
Speed controllers in metal housing (identity code specification Z)
The speed controller assembly consists of a frequency converter and a variable speed motor of 0.37 kW.
Technical Data
Type | Capacity at max. back pressure with 1500 rpm motor at 50 Hz | 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 | Plunger Ø |
|---|
| | Max. stroke rate | | Max. stroke rate | | | | | |
|---|
| l/h | bar | ml/stroke | Strokes/min | l/h | psi | gph (US) | Strokes/min | m WC | bar | G-DN | kg | mm |
|---|
32002 | 1.9 | 320 | 0.46 | 71 | 2.3 | 4,641 | 0.61 | 84 | 5.0 | 160 | 1/4 | 24 | 8 |
23004 | 4.0 | 230 | 0.52 | 129 | 4.8 | 3,336 | 1.27 | 154 | 5.0 | 115 | 1/4 | 24 | 8 |
14006 | 6.1 | 140 | 1.42 | 71 | 7.1 | 2,031 | 1.88 | 84 | 4.0 | 70 | 1/4 | 24 | 12 |
10006 | 6.4 | 100 | 0.55 | 195 | 7.6 | 1,450 | 2.01 | 233 | 5.0 | 50 | 1/4 | 24 | 8 |
10011 | 11.0 | 100 | 1.43 | 129 | 13.1 | 1,450 | 3.46 | 153 | 4.0 | 50 | 1/4 | 24 | 12 |
07012 | 12.4 | 70 | 2.90 | 71 | 14.8 | 1,015 | 3.91 | 85 | 4.0 | 35 | 1/4 | 24 | 17 |
05016 | 16.7 | 50 | 1.43 | 195 | 20.0 | 725 | 5.28 | 233 | 4.0 | 25 | 1/4 | 24 | 12 |
04022 | 22.4 | 40 | 5.26 | 71 | 26.5 | 580 | 7.00 | 84 | 4.0 | 20 | 3/8 | 25 | 23 |
04522 | 22.5 | 45 | 2.91 | 129 | 26.7 | 653 | 7.05 | 153 | 4.0 | 22.5 | 1/4 | 24 | 17 |
02534 | 34.1 | 25 | 2.92 | 195 | 40.8 | 363 | 10.78 | 233 | 4.0 | 12.5 | 1/4 | 24 | 17 |
02541 | 41.5 | 25 | 5.37 | 129 | 49.2 | 363 | 13.00 | 153 | 4.0 | 12.5 | 3/8 | 25 | 23 |
01264 | 64.0 | 12 | 5.45 | 195 | 76.0 | 174 | 20.08 | 233 | 4.0 | 6 | 3/8 | 25 | 23 |
Materials in Contact with the Medium
Identity code of material | Dosing head | Suction / discharge connection on dosing head DN 25 | Seals/ball seat | Balls | Ball seat |
|---|
SST | Stainless steel 1.4404 | Stainless steel 1.4404 | PTFE or PTFE +25 % carbon | Ceramic | Stainless steel 1.4404 |
Motor Data
| Identity code specification | | Power supply | | | Remarks |
| S | 3-phase, IP 55* | 230 V/400 V | 50 Hz | 0.25 kW | |
| R | 3-phase, IP 55* | 230 V/400 V | 50/60 Hz | 0.37 kW | With PTC, speed control range 1:20 with external fan 1-phase 230 V; 50/60 Hz |
| V0 | 1-phase, IP 55* | 230 V | 50/60 Hz | 0.37 kW | Variable speed stroke control motor with integrated frequency converter |
| M | 1-phase AC, IP 55 | 230 V ± 5 % | 50/60 Hz | 0.18 kW | |
| N | 1-phase AC, IP 55 | 115 V ± 5 % | 60 Hz | 0.18 kW | |
| L1 | 3-phase, II 2G Ex e II T3 | 220 – 240 V/380 – 420 V | 50 Hz | 0.18 kW | On request |
| L2 | 3-phase, II 2G Ex de IIC T4 | 220 – 240 V/380 – 420 V | 50 Hz | 0.18 kW | With PTC, speed control range 1:5 |
| P1 | 3-phase, II 2G Ex e II T3 | 250 – 280 V/440 – 480 V | 60 Hz | 0.18 kW | On request |
| P2 | 3-phase, II 2G Ex de IIC T4 | 250 – 280 V/440 – 480 V | 60 Hz | 0.21 kW | With PTC, speed control range 1:5 |
Motor data sheets can be requested for more information.
Special motors or special motor flanges are available on request.
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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