Achieve reliable vacuum regulation and efficient solvent recovery with professional laboratory valve-controlled pump units. This high-performance range features advanced Heidolph ROTAVAV systems and Vacuubrand chemistry vacuum units designed for precise distillation and evaporation. As a specialized category within our vacuum technology, drying, and dry storage and diaphragm pumps ecosystems, these units utilize solenoid valves or manual controls to manage vacuum levels effectively.
Why Choose Professional Laboratory Valve-Controlled Pump Units?
Our curated collection of regulated vacuum systems is engineered for chemical resistance, durability, and high vapor tolerance:
- Optimized Evaporation Control: We stock the Heidolph Vacuum Pump ROTAVAV Valve Tec, specifically designed for seamless integration with LR40xx and Hei-VAP rotary evaporators.
- Complete Chemistry Systems: Utilize the Vacuubrand Chemistry Vacuum System MD 1C AK + EK, which includes an inlet separator (AK) and exhaust condenser (EK) for superior solvent recovery.
- High-Performance Membrane Technology: Select the Vacuubrand Chemical-Membrane Pump MZ 2C NT + AK + EK, providing a quiet and reliable vacuum source for aggressive laboratory gases.
- Integrated Process Protection: Choose units with certification-ready configurations, such as the Vacuubrand MD 1C AK + EK Certification models for regulated lab environments.
- Universal Power Compatibility: Most systems are available with regional plug configurations, including CEE and CH mains cables, to suit your facility's requirements.
LabFriend supplies laboratory valve-controlled pump units from industry-leading vacuum specialists:
- VACUUBRAND: Global leader in chemistry-resistant diaphragm pumps, offering the MD and MZ series for comprehensive laboratory vacuum management.
- Heidolph: Provider of premium laboratory equipment, featuring the ROTAVAV series for high-precision valve-regulated distillation.
Precise vacuum control is vital for maintaining sample integrity; to further enhance your laboratory's operational efficiency, we recommend exploring these related categories:
- Laboratory Speed-Controlled Pump Units: For automated, demand-responsive vacuum adjustment, explore Vacuubrand VARIO® and KNF systems.
- Vacuum Pump Accessories: Maintain your hardware with Vacuubrand high-performance oils, clamping rings, and flanged nozzles.
- Cold Traps and Woulff Bottles: Enhance protection against volatile vapors with KGW Isotherm Dewar traps.
- Waste Bins: Safely dispose of recovered solvent waste and used consumables in B. Braun Medibox containers.
Unsure if your application requires the 1.3 m3/h flow rate of an MD 1C system or the specialized integration of a Heidolph Valve Tec? Our team provides local technical support to help you find the correct valve-controlled solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. What is the difference between valve-controlled and speed-controlled pumps?
Valve-controlled pumps run at a constant motor speed and use valves to regulate the vacuum level, while speed-controlled pumps (like VARIO® models) adjust the motor speed itself to maintain the desired vacuum.
2. What do the abbreviations AK and EK mean?
AK refers to an inlet separator that protects the pump from liquids and particles, while EK refers to an exhaust condenser that enables nearly 100% solvent recovery at the outlet.
3. Are these pumps resistant to aggressive chemicals?
Yes, Vacuubrand and Heidolph chemistry pumps are constructed with fluoropolymers like PTFE for all internal parts that come into contact with vapors, ensuring high chemical resistance.
4. Can I use these pumps with any brand of rotary evaporator?
While many are universal, specific models like the Heidolph ROTAVAV are optimized for communication and physical mounting with Heidolph Hei-VAP systems.
