Single / two component screw valve
The product has the advantages of constant conveying flow, no pulsation and low shear, especially for conveying high viscosity, sensitive and granular media.
Therefore, preeflow is: a solution for a variety of complex applications!
product advantages
true volumetric conveying 
endless piston principle @ technology
wide applicable viscosity range applicable to various viscosity media
easy to clean modular design, easy to use and clean
precise volume control the output flow is directly proportional to the speed and is not affected by the changes of medium viscosity, pressure and temperature
high precision conveying accurate metering, flow error less than 1%
high repetition accuracy conveying repetition accuracy above 99%
it can transport medium containing particles the maximum medium particles can reach 1 mm
high speed up to 3 times / s
versatility easy integration with automation system and simple control
no pulsation stable and stable output flow
stable output self sealing structure design
it can be sucked back no drip, no wire drawing
single component screw valve
eco-PEN300
Minimum delivery: 0.001 ml
Adjustable flow range: 0.12 – 1.48 ml/min
Weight: 280 G
eco-PEN330
Minimum delivery: 0.002 ml
Adjustable flow range: 0.2 & ndash; 3.3 ml/min
Weight: 300 g
eco-PEN450
Minimum delivery: 0.004 ml
Adjustable flow range: 0.50 & ndash; 6.00 ml/min
Weight: 300 g
eco-PEN600
Minimum delivery: 0.015 ml
Adjustable flow range: 1.40 & ndash; 16.0 ml/min
Weight: 650 g
eco-PEN700
Minimum conveying capacity: 0.060ml
Adjustable flow range: 5.3-60.0ml/min
Weight: 750 g
eco-PEN700-3D
Minimum delivery: 0.060 ml
Adjustable flow range: 5.30 – 60.0 ml/min
Weight: 650 g
two component screw valve
eco-DUO330
Minimum delivery: 0.005 ml
Adjustable flow range: 0.1 bis 6.6 ml / min
Weight: 1.230g
eco-DUO450
Minimum conveying capacity: 0.010ml
Adjustable flow range: 0.2 bis 12 ml / min
Weight: 1.230g
eco-DUO600
Minimum conveying capacity: 0.030ml
Adjustable flow range: 0.6 bis 32 ml / min
Weight: 1.880g
control unit
eco-CONTROL DUO
Two component desktop controller
Length x width x height: 240x110x210 mm
eco-CONTROL EC200-B
Universal controller
L x W x H: 197x88x240 mm
eco-CONTROL EC200-K
Single component desktop controller
L x W x H: 240x 100x260 mm
Plug‘ n’ Dose
Simple controller
L x W x H: 142x85x50 mm
industry application
Photovoltaic solar energy industry
Medical industry
Optical and optoelectronic industry
SMD/SMT
Electronic components industry
Laboratory
Semiconductor manufacturing industry
LED/LED
Biological / chemical industry
And more
| description | eco-PEN300 |
| product number | 20505 |
| external dimensions | length 216 mm, Ø 33 mm |
| weight | 280 g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | water to pasty |
| volumetric flow | 0.12 – 1.48 ml/min |
| minimum dosage | 0.001 ml |
| conveying accuracy (2) | ± 1 % |
| stator material | VisChem |
| material inlet | G 1/8“ DIN/ISO 228 |
| material outlet | luer lock patented technology (patented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40℃ |
| repeat accuracy | >99 % |
| description | eco-PEN330 |
| product number | 21525 |
| external dimensions | length 225 mm, Ø 33 mm |
| weight | 300 g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 0.2 – 3.3 ml/min |
| minimum dosage | 0.002 ml |
| conveying accuracy (2) | ± 1 % |
| stator material | VisChem (optional VisLas) |
| material inlet | G 1/8“ DIN/ISO 228 |
| material outlet | luer lock patented technology lpatented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40℃ |
| repeat accuracy | >99 % |
| description | eco-PEN450 |
| product number | 20092 |
| external dimensions | length 228 mm, Ø 33 mm |
| weight | 300g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 0.5-6.0 ml/min |
| minimum dosage | 0.004 ml |
| conveying accuracy (2) | ± 1% |
| stator material | VisChem (optional VisLas) |
| material inlet | G 1/8“ DIN/ISO 228 |
| material outlet | luer lock patented technology lpatented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40° ℃ |
| repeat accuracy | > 99 % |
| description | eco-PEN600 |
| product number | 20048 |
| external dimensions | length 274 mm, Ø 40 mm |
| weight | 650g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 1.4-16.0 ml/min |
| minimum dosage | 0.015 ml |
| conveying accuracy (2) | ± 1% |
| stator material | VisChem (optional VisLas) |
| material inlet | G 1/4“ DIN/ISO 228 |
| material outlet | luer lock patented technology lpatented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40° ℃ |
| repeat accuracy | >99 % |
| description | eco-PEN700 |
| product number | 20723 |
| external dimensions | length 274 mm, Ø 40 mm |
| weight | 750 g |
| working pressure | o-6 bar |
| maximum delivery pressure (1) | 10 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 5.3-60.0ml/min |
| minimum dosage | 0.060 ml |
| conveying accuracy (2) | ± 1% |
| stator material | VisChem |
| material inlet | G 1/4“ DIN/ISO 228 |
| material outlet | luer lock patented technology (patented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40℃ |
| repeat accuracy | >99 % |
| description | eco-PEN700-3D |
| product number | 20723 |
| external dimensions | length 274 mm, Ø 40 mm |
| weight | 650g |
| working pressure | o-6 bar |
| maximum delivery pressure (1) | 10 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 5.3-60.0 ml/min |
| minimum dosage | 0.060 ml[9 |
industry application
Photovoltaic solar energy industry
Medical industry
Optical and optoelectronic industry
SMD/SMT
Electronic components industry
Laboratory
Semiconductor manufacturing industry
LED/LED
Biological / chemical industry
And more
| description | eco-PEN300 |
| product number | 20505 |
| external dimensions | length 216 mm, Ø 33 mm |
| weight | 280 g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | water to pasty |
| volumetric flow | 0.12 – 1.48 ml/min |
| minimum dosage | 0.001 ml |
| conveying accuracy (2) | ± 1 % |
| stator material | VisChem |
| material inlet | G 1/8“ DIN/ISO 228 |
| material outlet | luer lock patented technology (patented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40℃ |
| repeat accuracy | >99 % |
| description | eco-PEN330 |
| product number | 21525 |
| external dimensions | length 225 mm, Ø 33 mm |
| weight | 300 g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 0.2 – 3.3 ml/min |
| minimum dosage | 0.002 ml |
| conveying accuracy (2) | ± 1 % |
| stator material | VisChem (optional VisLas) |
| material inlet | G 1/8“ DIN/ISO 228 |
| material outlet | luer lock patented technology lpatented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40℃ |
| repeat accuracy | >99 % |
| description | eco-PEN450 |
| product number | 20092 |
| external dimensions | length 228 mm, Ø 33 mm |
| weight | 300g |
| working pressure | 0-6 bar |
| maximum delivery pressure (1) | 20 bar |
| viscosity | aqueous to mushy |
| volumetric flow | 0.5-6.0 ml/min |
| minimum dosage | 0.004 ml |
| conveying accuracy (2) | ± 1% |
| stator material | VisChem (optional VisLas) |
| material inlet | G 1/8“ DIN/ISO 228 |
| material outlet | luer lock patented technology lpatented) |
| parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| operating temperature | 10-40° ℃ |
| repeat accuracy | > 99 % |
| Description | eco-PEN600 |
| Product number | 20048 |
| Appearance dimension | Length 274 mm, Ø 40 mm |
| Weight | 650g |
| Working pressure | 0-6 bar |
| Maximum delivery pressure (1) | 20 bar |
| Viscosity | Aqueous to mushy |
| Volumetric flow | 1.4-16.0 ml/min |
| Minimum dosage | 0.015 ml |
| Conveying accuracy (2) | ± 1% |
| Stator material | VisChem (optional VisLas) |
| Material inlet | G 1/4“ DIN/ISO 228 |
| Material outlet | Luer lock patented technology lpatented) |
| Parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| Operating temperature | 10-40° ℃ |
| Repetition accuracy | >99 % |
| Description | eco-PEN700 |
| Product number | 20723 |
| Appearance dimension | Length 274 mm, Ø 40 mm |
| Weight | 750 g |
| Working pressure | o-6 bar |
| Maximum delivery pressure (1) | 10 bar |
| Viscosity | Aqueous to mushy |
| Volumetric flow | 5.3-60.0ml/min |
| Minimum dosage | 0.060 ml |
| Conveying accuracy (2) | ± 1% |
| Stator material | VisChem |
| Material inlet | G 1/4“ DIN/ISO 228 |
| Material outlet | Luer lock patented technology (patented) |
| Parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| Operating temperature | 10-40℃ |
| Repetition accuracy | >99 % |
| Description | eco-PEN700-3D |
| Product number | 20723 |
| Appearance dimension | Length 274 mm, Ø 40 mm |
| Weight | 650g |
| Working pressure | o-6 bar |
| Maximum delivery pressure (1) | 10 bar |
| Viscosity | Aqueous to mushy |
| Volumetric flow | 5.3-60.0 ml/min |
| Minimum dosage | 0.060 ml |
| Conveying accuracy (2) | ± 1% |
| Stator material | VisChem |
| Material inlet | G 1/4“ DIN/ISO 228 |
| Material outlet | Luer lock patented technology (patented) |
| Parts in contact with materials | POM / stainless steel / VisChem / HD-PE |
| Operating temperature | 10-40℃ |
| Repetition accuracy | >99 % |
| Description | eco-DUO330 |
| Product number | 21529 |
| Description | 228 mmx163 mm |
| Weight | 1230g |
| Working pressure | 0-20 bar |
| Maximum delivery pressure (1) (4) | 40 bar |
| Viscosity | Water to pasty |
| Volumetric flow (3) | 0.1 – 6.6 ml/min (at 1:1) |
| Minimum dosage | 0.005 ml |
| Conveying accuracy (2) | ± 1% |
| Mixing ratio | 1:1-10:1 |
| Stator material | VisChem (optional VisLas) |
| Material inlet | G 1/8" DIN/ISO 228 |
| Material outlet | static mixer, bayonet lock |
| Parts in contact with materials | Aluminium, anodized / POM / stainless steel/ VisChem / HD-PE(optional VisLas) |
| Operating temperature | 10-40°℃ |
| Repetition accuracy | >99 % |
| Description | eco-DUO450 |
| Product number | 20639 |
| Description | 228 mm x 163 mm |
| Weight | 1230g |
| Working pressure | 0-20 bar |
| Maximum delivery pressure (1) (4) | 40 bar |
| Viscosity | Water to pasty |
| Volumetric flow (3) | 0.2-12 ml/min (at 1:l) |
| Minimum dosage | 0.010 ml |
| Conveying accuracy (2) | 1% |
| Mixing ratio | 1:1-10:1 |
| Stator material | VisChem (optional VisLas) |
| Material inlet | G 1/8“ DIN/ISO 228 |
| Material outlet | static mixer, bayonet lock |
| Parts in contact with materials | Aluminium, anodized / POM / stainless steel / VisChem / HD-PE (optional VisLas) |
| Operating temperature | 10-40℃ |
| Repetition accuracy | >99% |
| Description | eco-DUO600 |
| Product number | 21175 |
| Description | 301 mm x 163 mm |
| Weight | 1880g |
| Working pressure | 0-20 bar |
| Maximum delivery pressure (1) (4) | 40 bar |
| Viscosity | Water to pasty |
| Volumetric flow (3) | 0.6-32.0 ml/min (at 1:1) |
| Minimum dosage | 0.030 ml |
| Conveying accuracy (2) | ± 1 % |
| Mixing ratio | 1:1-10:1 |
| Stator material | VisChem (optional VisLas) |
| Material inlet | G 1/4“ DIN/ISO 228 |
| Material outlet | static mixer, bayonet lock |
| Parts in contact with materials | Aluminium, anodized / POM / stainless steel / VisChem/ HD-PE(optional VisLas) |
| Operating temperature | 10-40° ℃ |
| Repetition accuracy | >99% |
Contact information
Telephone：0769-23127991
Mail：sales@stonebridge-inc.com
Address： 1st floor, Building A, science and Technology Creative Industrial Park, new base, No. 5, Xinji Road, Nancheng District, Dongguan City, Guangdong Province
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