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Accurate dosing is particularly important in the pharmaceutical, cosmetic or food sector. Comprehensible process conditions are a prerequisite for the safe conveyance of sensitive media. This is ensured by a control accuracy of ±1% and precise speed adjustment (5 — 120 rpm).
In addition, an optional foot switch allows the pump to be operated in closed exhaust hoods. The parameters - speed, direction of rotation and on/off function - can be controlled externally either through the analog or digital interface.
In this model, you can choose between a single-channel or multichannel pump head. Flow rates vary depending on the pump head: the single-channel head has a flow rate of 0.38 — 813 ml/min; for the multi-channel head 0.005 — 364 ml/min. Depending on the focus of the process, the following parameters can be set on the device: Speed, tubing diameter, flow rate display, metering volume, interval dosing and break times. The pump can be calibrated for optimum dosing results.
Multi-Channel Operation
• Increase your throughput by running up to 12 individual cassettes on one single pump drive and pump head system
• Separate metering into multiple vessels with different feed rates in a single operation by using different tubing dimensions to adjust flow rate
• Save time: tubing change is done in just seconds
• In addition to standard pump heads which feature a 4-roller system you can choose 8-roller pump heads for low pulsation
• Change your cassettes easily, even during operation – there are no restrictions
• Cassette adjustments and changes are simple, just click in place
• No additional purchase of a pump drive needed: upgrade your single-channel pump drive with just one adaptor for multi-channel use and pick the head/cassette configuration that matches your application needs
Viton®
For Single- and Multi-Channel use (not suitable with cassette small)
• Application: Excellent acid resistance at high temperatures
• Features:
- Low gas permeability
- Resistant to solvents and corrosives at high temperatures
• Material: Fluorocarbon rubber, thermoformed Viton® B (67% fluorinated); opaque black
• Complies with the standards: GLP conform
• Temperature range: -30 to +205 °C
• Sterilization: Sterilization is not recommended
• Restriction: Limited performance life
Used with:
Acids: excellent
Lyes: excellent
Solvents: varies; tests recommended
Pressure: good
Vacuum: good
Viscous media: good
Sterile media: satisfactory
Viton® Extension Tubing for Cassette small
• Application: Excellent acid resistance at high temperatures
• Features:
- Low gas permeability
- Resistant to solvents and corrosives at high temperatures
• Material: Fluorocarbon rubber, thermoformed Viton® B (67% fluorinated); opaque black
• Complies with the standards: GLP conform
• Temperature range: -30 to +205 °C
• Sterilization: Sterilization is not recommended
• Restriction: Limited performance life
Used with:
Acids: excellent
Lyes: excellent
Solvents: varies; tests recommended
Pressure: good
Vacuum: good
Viscous media: good
Sterile media: satisfactory
The pump drive of the model 120 of the Hei-FLOW Expert series can be operated with either single-channel or multi-channel pump heads. The flow rates with single-channel pump heads are in the range of 0.38 — 813 ml/min; with multi-channel pump heads from 0.005 — 329 ml/min.
By integrating an analog interface, it is possible to control all functions externally. In addition, an optional foot switch can be adapted to enable dosing by foot pressure. Hands thus remain free to perform other work, for example, to hold the tubing and the vessel.
A speed of 5 — 120 rpm with a control accuracy of ±3.5% guarantees optimum process results.
Multi-Channel Operation:
• Increase your throughput by running up to 12 individual cassettes on one single pump drive and pump head system
• Separate metering into multiple vessels with different feed rates in a single operation by using different tubing dimensions to adjust flow rate
• Save time: tubing change is done in just seconds
• In addition to standard pump heads which feature a 4-roller system you can choose 8-roller pump heads for low pulsation
• Change your cassettes easily, even during operation – there are no restrictions
• Cassette adjustments and changes are simple, just click in place
• No additional purchase of a pump drive needed: upgrade your single-channel pump drive with just one adaptor for multi-channel use and pick the head/cassette configuration that matches your application needs
PharMed® Two-stop tubing for Cassette small
Two-stop tubing (40 cm) for Cassette small
Application: Ideal for medical, lab and research uses
Features:
High fatigue strength under repeated reversed bending stresses
Non-toxic, biocompatible
Very low gas permeability
Well suited to acids and bases
Material: Thermoplastic elastomer on a polypropylene base with plasticizers; excellent tensile strength; opaque
Complies with the standards: USP Class VI, GLP, Pharmacopoea and Europaea
Temperature range: -51 to +135 °C
Sterilization: Can be autoclaved or sterilized with ethylene oxide or sterilized by irradiation
Restriction: Additives may migrate
Used with:
Acids: good
Lyes: good
Solvents: unsuitable
Pressure: good
Vacuum: excellent
Viscous media: good
Sterile media: excellent
