Rotary vane pumps

The Welch CRVpro pumps are high-performance two-stage vacuum pumps. They impress with their long service life, high reliability and low maintenance requirements. The CRVpro series are the perfect partners for freeze dryers, vacuum concentrators, Schlenklines, glove boxes and vacuum ovens, as well as industrial applications.

• Cool running operation for less oil consumption
• Coated oil case to slow metal corrosion
• Extended oil change intervals for less maintenance costs
• Dual voltage

Scope of supply: Every pump is supplied complete with Directorr™ Premium vacuum pump oil, centering rings, clamping rings and motor overload protection.
Scope of supply: CRVpro rotary vane pump, oil mist separator AKD 16, 2-way valve, hose connector, vacuum hose (1.5 m), oil drain kit

Accessories Accessories for CRVpro 4/6/8/16/24/30 Accessories  Alternative Rotary vane pump CRVpro 4/6/8 Alternative Rotary vane pump CRVpro 16/24/30 Alternative

Fully equipped vacuum controller with capacitive, gas type-independent absolute pressure measurement using an alumina-ceramic diaphragm. While the base unit Vacuum Controller VACUU·SELECT^®still requires a separate vacuum control valve as an accessory, there is the fully equipped Compact controller VACUU·SELECT^®as two-point vacuum regulator with chemical suction line valve.
With connected vacuum valve the VACUU·SELECT^® automatically detects the boiling point during solvent evaporation and switches to two-point control mode. The graphical user interface offers predefined vacuum processes for all common laboratory applications. Applications, such as desired vacuum and other parameters can also be put together and controlled individually.

• Interactive, graphic touch display for easy operation
• Touchscreen display can be operated with safety gloves
• Predefined vacuum processes for reproducible results and time savings in the laboratory
• Fully automatic evaporations at the touch of a button
• Easy-to-use application editor for creating your own processes
• Integrated help function
• Integrated ventilation valve also for inert gas
• Ethernet/USB (Type A) interface
• EX approval: II 3/- G IIC T4 X Internal Atm. Only

The fully equipped basic unit without vacuum control valve can be positioned freely. A matching range of accessories offers everything for fitting into a variety of laboratory applications.

Scope of delivery: Vacuum Controller VACUU·SELECTwith integrated ceramic vacuum sensor and venting valve, fold-out stand and power supply.

Please order suction line valves separately.

Specifications
Measuring range:	0,1 ... 1080 mbar
Accuracy:	<± 1 mbar / ±1 digit (after adjustment, constant temp.)
Housing:	Plastic, good chemical resistance
Connection venting valve:	Hose nozzle DN 4-5 mm
Vacuum connection (Compact controllers only):	Hose nozzle DN 6/10 mm
Ambient temperatue range:	10 ... 40 °C
Dimensions (W x D x H):	152 x 127 x 41 mm
Weight:	0.745 kg
Power supply:	100 ... 230 V, 50/60 Hz

Accessories Accessories for Vacuum Controller VACUU·SELECT and Measuring instrument DCP 3000 Alternative Compact Vacuum Controller VACUU·SELECT®