| Prominent Sigma/1, Sigma/2, Sigma/3 precision metering pumps form a continuous product line with a metering range from 17 to 1030 l/h, using a unified operating and control mechanism and spare parts management. These three models of pumps have a basic type without an internal electronic control system and an external control type with an internal electronic control system, which can be quickly and reliably adjusted to complete different metering tasks. Sigma/2 is divided into two types: diaphragm and plunger metering pumps. |
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| advantage: |
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Process safety: Adopting double diaphragms with diaphragm alarm, the measuring medium is not easily leaked or leaked into the transmission mechanism |
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The self exhaust function can ensure reliable operation |
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Integrated overflow valve to prevent pump overload |
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High processing quality: measurement accuracy better than ± 2% |
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Easy to operate: The measurement parameters for adjustment and control can be directly displayed on the LC of the large screen (external control type) |
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Optional with PROFIBUS ®- DP or CanOpen interface (external control type) for easy integration into complex processing control systems |
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The Sigma product line has the same availability, which simplifies spare parts management and reduces inventory |
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Due to the Sigma product line using the same operating procedures, operational training can be reduced |
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| Application areas: |
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Water treatment with proportional addition of additives, such as adding sodium hypochlorite for drinking water~ |
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Chemical dosing determined by measurement, such as adding acid and alkali to neutralize pH in wastewater treatment |
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Regularly control the addition of additives in the cooling water circulation |
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Pulsation control is applied when infusing different volumes, such as using a pressure gauge to inject glycerol |
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characteristic： |
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Measurement range: Sigma/1：17-120 l/h，12-4 bar
Sigma/2: Diaphragm 50-350 l/h, 16-4 bar plunger 1.9-64 l/h, 320-12 bar
Sigma/3：145-1030 l/h，10-4bar |
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A high-strength inner shell prevents its internal components from bearing pressure, and a corrosion-resistant plastic outer shell |
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Sigma/1 stroke length 4mm, adjustable by self-locking knob, with a step size of 1%
Sigma/2 stroke length 5mm, adjustable by self-locking knob, with a step size of 0.5%
Sigma/3 stroke length 6mm, adjustable through self-locking knob, with a step size of 0.5% |
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Double diaphragm with diaphragm alarm (optional, modified) Even if the diaphragm ruptures, the measuring medium will not leak from the pump or enter the transmission part of the pump |
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Pump head material: PVDF、 Stainless steel 1.4571/1.4404 |
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Under specified conditions and correct installation, the measurement accuracy is better than ± 2% (stroke length range 30-100%) |
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Integrated overflow valve: prevents overload. No need for complex additional installation and additional costs, no malfunction in the suction process and exhaust |
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For high pressure levels using plunger pumps, the pressure can reach up to 320 bar |
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Environmental temperature:- 10℃～＋45℃ |
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Medium temperature: relatively high |
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Continuous operation under high back pressure ≤ 65 ℃ (polyvinylidene fluoride); ≤ 90 ℃ (stainless steel); Piston type ≤ 150 ℃
Medium viscosity: Diaphragm type ≤ 200 mPa. s
Piston type ≤ 200 mPa. s (without valve spring)
≤ 500 mPa. s (with valve spring)
≤ 1000 mPa. s (designed and installed accordingly) |
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＞ 1000 mPa. s (after corresponding design and installation, and consulting with Prominent)
Power supply: Three phase ordinary motor: 230V/400V, 50Hz
Three phase explosion-proof motor Exe/Exde: 230V/400V，50Hz |
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Single phase motor: 230V, 50Hz |
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Power: 0.09/0.12/0.18/0.21/0.25/0.37/0.55 kW |
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| Protection level: IP55 |
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Basic characteristics (S1Ba, S2Ba, S3Ba): |
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Wide range of drive options: three-phase standard motors, single-phase AC motors, Exe and EXde explosion-proof motors, flanges for special motors |
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Protection level IP55 (optional ATEX-T3/T4) |
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| Stroke length adjustment: manual (optional with stroke positioning drive or stroke control drive) |
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External control characteristics (S1Ca, S2Ca, S3Ca): |
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Microprocessing control: Compare AC frequency and digital stroke frequency |
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Excellent combination, independent stroke control, ensuring small range measurement |
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Use 5 program buttons to easily operate different functions of the pump |
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The large LCD screen displays the current operating status |
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Display flow in units of l/h or gal/h |
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3 types of LED indicator lights: running, alarm, fault |
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Contact or analog signal control (such as 0/4-20 mA) |
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According to the requirements, a processing time of 2 weeks can be integrated. Intelligent selection of time timer |
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| Protection level IP65 |
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PROFIBUS ®- DP interface
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Performance Parameters Diaphragm Sigma/1
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model
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pressure
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internet traffic
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Stroke flow rate
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stroke frequency
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Connection size
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| Suction distance |
weight |
S1Ba/S1Ca |
bar |
l/h |
ml/stroke |
strokes/min. |
G'-DN |
| mWC |
10 |
17 |
3.8 |
73 |
kg |
7 |
9 |
| 12017PVT |
12 |
17 |
3.8 |
73 |
3/4-10 |
7 |
12 |
| 12017SST |
10 |
35 |
4.0 |
143 |
3/4-10 |
7 |
9 |
| 12035PVT |
12 |
35 |
4.0 |
143 |
3/4-10 |
7 |
12 |
| 12035SST |
10 |
50 |
4.0 |
205 |
3/4-10 |
7 |
9 |
| 10050PVT |
10 |
50 |
4.0 |
205 |
3/4-10 |
7 |
12 |
| 10050SST |
10 |
22 |
5.0 |
73 |
3/4-10 |
6 |
9 |
| 10022PVT |
10 |
22 |
5.0 |
73 |
3/4-10 |
6 |
12 |
| 10022SST |
10 |
44 |
5.1 |
143 |
3/4-10 |
6 |
9 |
| 10044PVT |
10 |
44 |
5.1 |
143 |
3/4-10 |
6 |
12 |
| 10044SST |
7 |
65 |
5.2 |
205 |
3/4-10 |
6 |
9 |
| 07065PVT |
7 |
65 |
5.2 |
205 |
3/4-10 |
6 |
12 |
| 07065SST |
7 |
42 |
9.6 |
73 |
3/4-10 |
3 |
9.5 |
| 07042PVT |
7 |
42 |
9.6 |
73 |
1-15 |
3 |
13.5 |
| 07042SST |
4 |
84 |
9.7 |
143 |
1-15 |
3 |
9.5 |
| 04084PVT |
4 |
84 |
9.7 |
143 |
1-15 |
3 |
13.5 |
| 04084SST |
4 |
120 |
9.7 |
205 |
1-15 |
3 |
9.5 |
| 04120PVT |
4 |
120 |
9.7 |
205 |
1-15 |
3 |
13.5 |
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| 04120SST |
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| 1-15 |
Sigma/1 overcurrent component material |
Diaphragm type |
pump head |
Suction and discharge valve body |
Sealing element |
| Valve ball |
Integrated overflow valve |
PVT |
Polyvinylidene fluoride |
Polyvinylidene fluoride |
PTFE
ceramics |
| Polyvinylidene fluoride/Fluorinated rubber |
Or EPDM rubber |
SST |
Stainless steel 1.4404 |
Stainless steel 1.4581 |
PTFE
Stainless steel 1.4404 |
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| Stainless steel/fluorinated rubber |
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Or EPDM rubber
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Diaphragm Sigma/2
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model
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pressure
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internet traffic
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Stroke flow rate
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stroke frequency
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Connection size
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| Suction distance |
weight |
S2Ba/S2Ca |
bar |
l/h |
ml/stroke |
strokes/min. |
G'-DN |
| mWC |
10 |
50 |
11.4 |
73 |
kg |
7 |
15 |
| 16050PVT |
16 |
48 |
11.4 |
73 |
1-15 |
7 |
20 |
| 16050SST |
10 |
88 |
11.4 |
132 |
1-15 |
7 |
15 |
| 16090PVT |
16 |
82 |
11.4 |
132 |
1-15 |
7 |
20 |
| 16090SST |
10 |
135 |
10.9 |
198 |
1-15 |
7 |
15 |
| 16130PVT |
16 |
124 |
10.9 |
198 |
1-15 |
7 |
20 |
| 16130SST |
7 |
120 |
27.4 |
73 |
1-15 |
5 |
16 |
| 07120PVT |
7 |
120 |
27.4 |
73 |
1 1/2-25 |
5 |
24 |
| 07120SST |
7 |
220 |
27.7 |
132 |
1 1/2-25 |
5 |
16 |
| 07220PVT |
7 |
220 |
27.7 |
132 |
1 1/2-25 |
5 |
24 |
| 07220SST |
4 |
350 |
29.4 |
198 |
1 1/2-25 |
5 |
16 |
| 04350PVT |
4 |
350 |
29.4 |
198 |
1 1/2-25 |
5 |
24 |
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| 04350SST |
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| 1 1/2-25 |
Sigma/2 overcurrent component material |
Diaphragm type |
pump head |
Suction and discharge valve body |
Sealing element |
| Valve ball |
Integrated overflow valve |
PVT |
Polyvinylidene fluoride |
Polyvinylidene fluoride |
PTFE
Ceramic/Glass* |
| Polyvinylidene fluoride/Fluorinated rubber |
Or EPDM rubber |
SST |
Stainless steel 1.4404 |
Stainless steel 1.4581 |
PTFE
Stainless steel 1.4404 |
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| Stainless steel/fluorinated rubber |
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| Or EPDM rubber |
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*Used for 071200722004350
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Diaphragm Sigma/3
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model
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pressure
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internet traffic
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Stroke flow rate
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stroke frequency
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Connection size
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| Suction distance |
weight |
S3Ba/S3Ca |
bar |
l/h |
ml/stroke |
strokes/min. |
G'-DN |
| mWC |
10 |
145 |
31.5 |
72 |
kg |
5 |
22 |
| 120145PVT |
12 |
145 |
31.5 |
72 |
1 1/2-25 |
5 |
26 |
| 120145SST |
10 |
190 |
31.5 |
103 |
1 1/2-25 |
5 |
22 |
| 120190PVT |
12 |
190 |
31.5 |
103 |
1 1/2-25 |
5 |
26 |
| 120190SST |
10 |
270 |
31.5 |
144 |
1 1/2-25 |
5 |
22 |
| 120270PVT |
12 |
270 |
31.5 |
144 |
1 1/2-25 |
5 |
26 |
| 120270SST |
10 |
330 |
31.5 |
180 |
1 1/2-25 |
5 |
22 |
| 120330PVT* |
12 |
330 |
31.5 |
180 |
1 1/2-25 |
5 |
26 |
| 120330SST* |
7 |
410 |
95.1 |
72 |
1 1/2-25 |
4 |
24 |
| 070410PVT |
7 |
410 |
95.1 |
72 |
2-32 |
4 |
29 |
| 070410SST |
7 |
580 |
95.1 |
103 |
2-32 |
4 |
24 |
| 070580PVT |
7 |
580 |
95.1 |
103 |
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