Inline Micro Jet Valve - fast switching
Dosing speed up to 4000 Hz
Description
- Dosing media: water, reagents, oils, UV glue, pastes, etc.
- Fast switching, dosing speed up to 4,000 Hz
- Hard sealing valve structure with sapphire and ruby
- Optimised for contactless dosing
- Dosage amount below 10 nl possible
- High reproducibility
- Grid width from 4 mm
Specifications
SMLD 300
|
SMLD 300G
| |
|---|---|---|
Rated Pressure range
|
up to 20 bar
|
up to 50 bar
|
Life-time
|
up to 500 million cycles *1
|
up to 500 million cycles *1
|
Viscosity range
|
1 - 200 mPa.s
|
1 - 1000 mPa.s *2
|
Maximum flow (water, 1 bar)
|
Nozzle Ø 0.1 mm: 3.3 ml/min nozzle Ø 0.15 mm: 8 ml/min nozzle Ø 0.2 mm: 15 ml/min |
nozzle Ø 0.1 mm : 3.3 ml/min nozzle Ø 0.15 mm : 8 ml/min nozzle Ø 0.2 mm : 15 ml/min nozzle Ø 0.3 mm : 38 ml/min nozzle Ø 0.45 mm : 75 ml/min |
Minimum dosing quantity
|
less than 10 nl possible
|
less than 10 nl possible
|
Internal volume
|
25 μl
|
65 μl
|
Nozzle diameter
|
Ø 0,1 mm Ø 0,15 mm (standard) Ø 0,2 mm |
Ø 0,1 / Ø 0,15 / Ø 0,2 mm Ø 0,3 mm (standard) Ø 0,45 / Ø 0,6 mm |
Valve stroke
|
0.03 mm (standard) 0.06 mm |
0.1 mm (standard) 0.03 / 0.06 / 0.15 mm |
Bult-in filter
|
Filter 17 μm (standard), without filter on request
|
Filter 37 μm (standard), without filter on request
|
Materials in contact with the medium
|
Stainless steels: 1.4305, 1.4301, 1.4310, 1.4113 IM / PEEK, sapphire, ruby
|
Stainless steels: 1.4305, 1.4301, 1.4310, 1.4113 IM / PEEK, sapphire, ruby
|
Typical response time
|
200 μs *1
|
400 μs *1
|
Maximum dosing frequency
|
up to 4000 Hz *1
|
up to 3000 Hz *1
|
Coil resistance
|
11 Ohm
|
6 Ohm
|
Coil inductance (valve coil mounted on micro valve)
|
1.23 mH
|
0.8 mH
|
Maximum permissible coil temperature
|
100°C
|
100°C
|
Electrical connection
|
Soldering pins / 300 mm wire, tinned or with plug 2 poles Molex type 70066-176
|
Soldering pins / 300 mm wire, tinned or with plug 2 poles Molex type 70066-176
|
Recommended peak current
|
1 A / 12 VDC during 150 μs. (Current limitation required at higher voltage)
|
1 A / 12 VDC during 400 μs. (Current limitation required at higher voltage)
|
Recommended holding current
|
0.1 - 0.3 A / 1.1 - 3 V DC no time limit |
0.2 - 0.3 A / 1.2 - 2 VD C no time limit |
Weight of micro valve with coil
|
1.9 g
|
3.1 g
|
Repeatability
|
< 5% CV *1
|
< 5% CV *1
|
Minimum grid width
|
4 mm
|
6 mm
|
Dosable fluids
|
Gases, water, reagents, inks, alcohols, DMSO, MEK, other solvents, cells, liquid adhesives, plasticizers, lacquers, oils, detergents, UV adhesives, greases, pastes, etc. *1
|
Gases, water, reagents, inks, alcohols, DMSO, MEK, other solvents, cells, liquid adhesives, plasticizers, lacquers, oils, detergents, UV adhesives, greases, pastes, etc. *1
|
*1 Depending on: Configuration, surroundings and application
*2 Heated, depending on the medium, up to 15000 mPa.s
Functional principle
1. Valve seat (Saphir) valve nozzle
2. Closing spring
3. Valve coil
4. Anchor
5. Media
6. Valve ball (Ruby)
7. Mobile anchor
8. Switching signal
Micro-Jet valve holder
1. Micro valve
2. Valve coil
3. Inlet adapter
4. O-ring
5. Valve holder
In addition to the single valve holder shown, multiple holders and valve holders with valve heating are also available. These valve holders make it easy to replace the micro-jet valves without disassembling the entire unit.
Configuration options
Fastening at the valve outlet
Cylinder for smallest size and narrow grid (Ø3.50mm for SMLD 300, Ø4.00mm for SMLD 300G).
Thread - Valve can be screwed into a valve holder from the front (M5 for SMLD 300, M6 for SMLD 300G).
Valve outlet
Jet for precise free jet dosing directly from the valve nozzle.
Thread for connecting attachment nozzles, pipettes and tubing to the valve outlet (10-32 UNF for SMLD 300 | ¼-28 UNF, 10-32 UNF, M5 for SMLD 300G).
Valve inlet
Manifold - suitable for the valve holders and for installation in systems with an O-ring seal (Ø1.80mm for SMLD 300, Ø2.70mm for SMLD 300G).
Tube connector for direct installation of a tubes (Ø1.20mm for SMLD 300, Ø2.30mm for SMLD 300G).
Valve assembly
Attachment Nozzles
Contactless dosing is usually done directly from the sapphire nozzle with these micro-jet valves. However, a needle can be very useful for certain media and applications. Attachment nozzles are available for this purpose.
Construction & assembly
- Attachment nozzle tube (precision capillary)
- Attachment nozzle holder
- Threaded sleeve
- Micro valve with cylindric mounting type
The attachment nozzles consist of a precision capillary which is fastened in a holder with a threaded sleeve. The materials of the front nozzle are exclusively stainless steel and PEEK. This unit can simply be pushed over the valve and screwed into the valve holder. The nozzle tube is centered exactly in front of the valve nozzle and allows a practically dead volume-free connection. When the attachment nozzle is tightened, it is reliably sealed to the valve by the special shape of the parts.
Application examples
Semi-Touch
The semi-touch application is suitable for media where a gentle drop of the droplet is required or if a contactless droplet tear off cannot be reached directly from the valve (e.g. special pasty media).
Jet and Slow Drop
Contactless jet dosing is also possible with the attachment nozzles. If larger drops (μl range) should be dosed gently and without splashing. This can be achieved with a larger attachement nozzle in combination with a smaller valve nozzle.
Aspirating and pipetting
Certain applications require aspirating or pipetting of media. The precision of the micro-jet valves allows the precisely controllable suction and aspirating of media in the nl range.
Controllers
We offer various controllers for the micro-jet valves. From individual controllers to controllers for up to 16 valves. You can find out more about this in the section of the controllers for micro-jet valves.
