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Our Laboratory Vacuum Systems LVS are compact pump systems for conventional vacuum distillation. Equipped with a chemical-resistant diaphragm pump (see the Diaphragm Pumps section), they are the ideal solution for a great many applications in chemical laboratories and research. Our vacuum pump stands are fitted with or without pressure regulation depending upon their use. The pressure regulation of the laboratory vacuum systems is implemented in the standard version by a chemical-resistant solenoid valve. The operation of the controller has been intentionally simplified, and it is easy to learn. Visualization and settings can be made from a PC.
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VACUUBRAND VARIO chemistry pumping units control the vacuum level with pinpoint precision by adjusting the diaphragm pump's motor speed continuously. They enable automatic detection of vapour pressure and variable adjustment of the vacuum level to the process. The fast and precise adaptive control always adjusts the pumping speed to the optimal level, regardless of installation size or gas volume. Process times are shortened by the high evaporation rate. Through constant evaporation, an optimal solvent recovery rate can be achieved. On the whole, the demand-oriented motor speed control reduces the workload of the vacuum pump significantly. This leads to unrivalled lifetimes for moving parts.
Application
For evaporation, distillation, drying and all other processes that require precise vacuum control, stagelessly adjustable pumping speed or demand-oriented vacuum supply.
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The chemistry vacuum pumping unit PC 8 / MV 10C with the built-in four-stage Chemistry Diaphragm Pump MV 10C achieves an oilfree vacuum of down to 0.9 mbar. It is used for applications with high demands on ultimate vacuum and pumping speed in chemical laboratories, mini-plants or for small production facilities, e.g. to pump or transfer aggressive gases, for distillation and for vacuum drying.
The large-volume high-performance exhaust vapour condenser with 1 l condensate collection bottle enables efficient solvent recovery which is both environmentally friendly and economic due to re-use of the solvents.
Advantages
- compact, ready-for-use vacuum pumping unit
- high-performance four-stage chemistry diaphragm pump
- oilfree vacuum down to 0.9 mbar
- solvent-recovery rate of next to 100%
- high chemical resistance
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KNF LABOPORT pumps: chemiecall-resistant Diaphragm Vacuum Pumps for the universal applications in laboratories.
KNF LABOPORT diaphragm pumps for neutral or high aggressive or corrosive gases and vapours offer the right choice for many applications. Irrespective of size, the special features of the diaphragm are built into every pump: uncontaminated transfer , no pollution of the media, maintenance-free and gas tightness.
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LABOPORT Vacuum Systems: chemiecall-resistant Diaphragm Vacuum Pumps with modular Accessories
With each of the LABOPORT vacuum pumps it is possible to construct a system suitable to individual requirements - easily and without special tools. The final building is a system with two vacuum controllers (SCC System) for two independent processes.
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The Series G Metering Pump is designed for high output applications. The drive incorporates a variable eccentic design which ensures smooth output and reduces system shock. The mechanically actuated diaphragm reduces the possibility of hydraulic oil contamination of process liquid which makes this an ideal pump for water treatment applications. DC variable speed drives are available for external control and automation.
The SD & SG metering pumps offer a high level of reliability with outstanding value for applications up to 175 psi (12 Bar).
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Maintaining the same size footprint of previous models, the sleek new pump offers a number of product enhancements to provide longer life and product convenience, while the physical design signifies supreme quality. The newly redesigned housing improves the drives heat transfer properties, as it generates heat farther away from the electronic components to maintain the long-term integrity of the PC Board. Electrical connector attachments have been repositioned to the front of the pump for easy access. With a new clear cover the face of the pump is shielded from exposure to corrosive substances yet lifts easily for convenient access, allowing operators to view dial settings for fine-tuning output. In addition, the pump and liquid end mounting geometries have been improved for enhanced connections. For more information please contact LMI Milton Roy
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Used wherever precise flow control, particularly at high pressures, is required. Flow rates from 0.02 to 144 mL/min at pressures to 5000 psi in a variety of models. HP Series pumps provide for flow rate control via precision micrometer; VS Series pumps provide flow rate control, either locally or remotely, via motor speed variation. Corrosion resistant materials, including metal-free versions.
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High discharge accuracy
The main components such as the plunger and cylinder are processed with high precision of micron order, so it is possible to obtain high discharge accuracy. (Discharge accuracy : }0.5%) By changing the angle of the pump head it is possible to freely adjust the discharge amount between 0 and maximum discharge.
Excellent corrosion resistance
Materials such as silicon carbide (SiC), fluorocarbon polymers (PTFE) and stainless casting (SCS14) with excellent resistance to corrosion are used for parts that come in contact with the fluid. This makes it possible to use the pumps for handling a wide range of chemicals.
Dispense into a vacuum condition and removal from a high-pressure condition
Since there are no suction and discharge valves, it is possible to directly dispense a constant amount of fluid in a vacuum (negative pressure) without using a solenoid. Constant-volume dispensing is also possible if suction side is pressurized.
Capable of handling slurries and highly viscous fluids
The unique valveless construction and the excellent resistance to wear of SiC, it is possible to handle slurries with fast precipitation speed as well as abrasive slurries. Also, the pumps are capable of smoothly pumping highly viscous fluids up to a maximum viscosity of 20,000 mPas.
Note: The discharge accuracy drops for viscous fluids with a viscosity of 500 mPas or greater. Contact this company for details.
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The FEM diaphragm dosing pump has been specially developed
in order to accurately dose small quantities of liquid over a long
period of time whereby two of its most distinctive features are its
compact size and robustness (pump and electronics). The FEM
pump and electronics makes a complete dosing system which
is suitable for both simple as well as complex applications. With
the functions quasi continuous flow and batch dispensing the
FEM diaphragm pump differentiates itself from pumps based on
alternative technologies eg. piston, gear, syringe and peristaltic
pumps. Other interesting features are its high reliability, a
favourable purchasing price and low maintenance costs.
KNF has developed a specially programmed electronic control
module so that the integrated solenoid valve and the movements
of the diaphragm are exactly synchronised. This results in an
exact dosing which is gentle and low in pulsation. In addition
to these unique pump characteristics the control module also
allows a wide range of control possibilities to be used eg.
serial interfaces.
The dosing pump is self priming, maintenance free and can
be run dry
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Lagoon filtration system provides the removal of foreign solids or organic impurities from chemical solutions or from baths of special treatments. The group is constitued by the filtration chamber with lid, injection-moulded fittings which contain the filtration system, positioned on the base. In the same base, well protected, is situated the mag drive pump, the pipeline equipped with valves and switch. Many chambers can be assembled together either in parallel or in series connected to a bathtub in order to filter using the carbon purification process. Thanks to the spacious basement all the parts can be easily inspected. Many different versions of filtration units are available: paper, meraklon cartridges, washable pleated cartridges. Filtrating grade: between 1 and 100 micrometers having 10 micrometers as standard.
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The Crystic gelcoat range has products which have been developed, tested and approved specifically for different markets and to suit the various production techniques used to make polyester composite products:
Hand- lay brush grades Sprayable grades Low VOC emission grades
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1381PA Heat & Chemical Resistant Polyester Resin Water fillable polyester resin Low styrene thixotropic spray viscosity polyester resin Polyester resin for Solid Surface Casting
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Epoxy ortho cresol novolac used as formulating tool for Tg enhancement and to lower moisture absorption of other Resolution resins. Used in printed wiring board, adhesives and powder coating applications.
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Magnetic drive chemical pump type MNK/F, heavy duty design, plain bearings made of SSiC/SAFEGLIDE PLUS, eddy-current-free double can of CFRP/PTFE, magnetic coupling, permanent magnets of SmCo and NdFeB, impeller closed with back vanes, bare-shaft, nuts and bolts made of stainless steel, high-quality epoxy coating, inclusive test run, housing material: ductile cast iron EN-JS 1049 acc. to DIN EN 1563 (0.7043 DIN 1693), technical specification to ISO 15783 and DIN ISO 5199, dimensions to DIN EN 22858 / ISO 2858, flanges to DIN EN 1092-2, ISO 7005-2, housing end pressure PN 16
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Materials
Wetted parts AISI 316 Bearings SiC Bracket WCB Special alloy: Hastelloy, Incoloy, Titanium
Technical Data : Flow Rates up to 1000m3/h Total Delivery Heads Up to 220m Temperature from -150 to a 450C Pressure Rating Up to PN 100
Construction
Horizontal Centrifugal Pump Permanent Magnet Drive system Separation of liquid chamber/atmosphere by means of an isolation shell Synchronous drive transmitted by inner magnet and outer magnet system Sintered Silicon Carbide Bearings Bearing Frame and Close coupled execution
Applications
Pumping acids, hydrocarbon, diathermic oils, liquid gases, dangerous fluids, explosive, toxic.
Further material available if request
Various materials from the standard special Constructions
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Materials
Part in contact with liquid PP / PVDF Shaft / Bearings Al2O3 / PTFE Bracket WCB
Pumping acids, hydrocarbon, liquid gases, dangerous fluids, explosive, toxic.
Technical Data : Flow Rates up to a 15m3/h Total delivery heads up to 70m Temperature Ratings up to 90C Pressure rating up to PN 10
Construction
Horizontal plastic peripheral Pump for general application Permanent Magnet Drive system Separation of liquid chamber/atmosphere by means of an isolation shell Synchronous drive transmitted by inner magnet and outer magnet system Alumina ultra pure 99,7% shaft, PTFEC Brgs Close Coupled execution
Applications
Further material available if request
Various materials from the standard special Constructions
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GEA Wiegand designs and constructs complex plant systems for the treatment of effluent and the recovery of solvent. The concepts of the different operating processes mainly focus on high degrees of purity, the energetic situation and low residual product quantities.
For the treatment of industrial effluent, our process engineers develop concepts for plant systems that are especially designed for the relevant effluent problem on the basis of a detailed analysis of the current situation.
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LABDRYER type LTE, for all drying, setting and thermolising processes.
Owing to its minimal space requirement, the LTE can be used both in mill laboratories and in research institutes
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