Catalog 2010 Technology for Vacuum Systems - Chiron

More documents

Recommendations

Info

16 Choosing vacuum equipment Choosing vacuum equipment For rotary evaporators / parallel evaporators ■ Vacuum requirements for rotation evaporators can vary greatly depending upon the solvent and evaporating temperature. This is the reason why a modern vacuum system includes built-in vacuum regulation to help you reach optimum evaporating rates. This significantly shortens the process duration and minimizes environmental and laboratory air pollution. Process requirements ■ medium to high vacuum requirements ■ fast and highly sensitive vacuum regulation with samples that tend to superheating or foaming ■ ■ ■ vacuum regulation for short process times and high reproducibility optimum condensation in the cooler of the rotation evaporator recovery of residual solvent vapors after the pump Demands made of the vacuum pump ■ excellent chemical and condensate compatibility ■ effective gas ballast equipment to prevent condensation in the pump and protect pump performance ■ excellent ultimate vacuum even with gas ballast operation for continuous evaporation ■ low ultimate vacuum needed at low condensing temperatures or with high boiling point solvents ■ emission condenser for solvent recovery minimizes environmental and laboratory air pollution ■ for applications with larger amounts of inflammable solvents: pumps and gauges with ATEX-approval An example of a typical high-temperature boiling solvent is DMF. Its vapor pressure at 40°C is at approximately 11 mbar. For such high-temperature boilers, we recommend a system or pumping unit that reaches 4 mbar of ultimate vacuum even with gas ballast, such as the PC 3001 VARIO. Recommended systems Without vacuum regulation, but including vapor capture: Ultimate vacuum 7 mbar or as much as 1.5 mbar: MZ 2C NT +AK+EK or MD 1C +AK+EK With classical two-point vacuum regulation with a solenoid valve: Ultimate vacuum 7 mbar or to 1.5 mbar: PC 510 NT or PC 610 NT Precision and fully automatic VARIO ® vacuum regulation: Ultimate vacuum 7 mbar or as much as 2 mbar: PC 3002 or PC 3001 VARIO Especially good ultimate vacuum up to 0.6 mbar, for evaporation at low bath temperature: PC 3003 VARIO Entry-level systems for precise vacuum regulation that can be upgraded to full automation ATEX chemistry diaphragm pumps and ATEX chemistry vacuum systems Further information at www.vacuubrand.com pg. 37, 48 pg. 42, 59 pg. 44, 50 pg. 68 pg. 49 pg. 79
Choosing vacuum equipment For vacuum concentrators ■ Vacuum concentration makes many demands on the supporting vacuum system, both in terms of the ultimate vacuum and in the selection of accessories. The pump needs high resistance to chemicals, as well as good tolerance of condensates. Type of solvents in use and the nature of the samples both have a strong influence on the ultimate vacuum needed and the appropriate type of process controls. Determining the optimum heat transfer into the sample material is also vital to avoid the need to upgrade your pump later. Process requirements ■ ■ optimum heat transmission to the sample vessels medium to high vacuum requirements ■ fast and highly sensitive vacuum regulation with samples that tend to foam ■ condensate and droplet precipitation between the pump and concentrator Demands made of the vacuum pump ■ ■ ■ ■ great resistance to chemicals ultimate vacuum as much as 7 mbar or 1.5 mbar sufficient volume flow rate (2 m³/h and more) not sensitive to condensate ■ inclusion of a vacuum inlet separator (AK) made of glass to protect the pump from particles and droplets of liquid emission condenser for solvent recovery and to minimize environ- ■ mental and laboratory air pollution Recommended systems An ultimate vacuum of as much as 7 mbar is sufficient for organic solvents and/or small amounts of H 2 O An ultimate vacuum of as much as 1.5 mbar is advisable for aqueous samples, high boiling point solvents and/or low working temperatures. This especially concerns solvents such as DMF, DMSO, NMP or DMAC. VARIO ® pumping units with automatic vacuum optimization are the best option for gentle concentration operations and for mixtures of substances that tend to boiling delay. Final pressures of as low as 10 -3 mbar may be necessary for optimum residual drying or for high-temperature boilers at very low evaporation temperature. The chemistry-HYBRID TM pump RC 6 has proved its worth here. A cold trap can be located upstream of any of the pumps to boost flow-through, if helpful. Choosing vacuum equipment pg. 34 pg. 46 pg. 44, 50 pg. 122 Further information at www.vacuubrand.com 17
Page 1 and 2: Further information at www.vacuubra
Page 3 and 4: Catalog 2010 Technology for Vacuum
Page 5 and 6: At a glance Table of content Our pe
Page 7 and 8: Technology From the outset, we had
Page 9 and 10: Calibration VACUUBRAND operates a c
Page 11 and 12: Efficiently organized production an
Page 13 and 14: ■ Chemistry pumping units VACUUBR
Page 15: The right solution for your applica
Page 19 and 20: Choosing vacuum equipment For gel d
Page 21 and 22: Choosing vacuum equipment For lyoph
Page 23 and 24: Choosing vacuum equipment Fore-vacu
Page 25 and 26: Chemistry diaphragm pumps ■ Typic
Page 27 and 28: Oil-free vacuum for corrosive gases
Page 29 and 30: Chemistry diaphragm pumps Series ov
Page 31 and 32: Pumping speeds and pump down times
Page 37 and 38: Chemistry vacuum system MZ 2C NT +A
Page 39 and 40: Chemistry vacuum system MZ 2C NT +A
Page 41 and 42: Chemistry pumping unit PC 500 LAN N
Page 43 and 44: Chemistry pumping unit PC 520 NT Ch
Page 49 and 50: Chemistry pumping unit PC 3001 basi
Page 55 and 56: Chemistry vacuum system MD 4C NT +A
Page 57 and 58: Chemistry pumping unit PC 201 NT PE
Page 67 and 68:
TECHNICAL DATA Vacuum controller Nu
Page 69 and 70:
TECHNICAL DATA Vacuum controller Nu
Page 71 and 72:
Pumping speeds and pump down times
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Emission condenser Accessories for
Page 79 and 80:
ATEX chemistry diaphragm pumps and
Page 81 and 82:
Chemistry diaphragm pump ATEX chemi
Page 83 and 84:
Diaphragm pumps ■ VACUUBRAND's al
Page 85 and 86:
Diaphragm pumps Series overview Ult
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Diaphragm pumps down to 4 mbar Pump
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Diaphragm pumps with 24V DC drive p
Page 107 and 108:
Page 109 and 110:
TECHNICAL DATA Number of heads / st
Page 111 and 112:
Rotary vane pumps and pumping units
Page 113 and 114:
Series overview Rotary vane pumps D
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
TECHNICAL DATA Number of stages Max
Page 125 and 126:
Protect your pump and the environme
Page 127 and 128:
Cold traps (models SKF and GKF) At
Page 129 and 130:
HP 63 B2 37 l/s 1 x 10 -6 mbar TECH
Page 131 and 132:
Fluid aspiration system BioChem-Vac
Page 133 and 134:
Vacuum gauges ■ State-of-the-art
Page 135 and 136:
Vacuum gauge DVR 2 The DVR 2 is a f
Page 137 and 138:
Vacuum gauge DVR 4 and DVR 4S The D
Page 139 and 140:
Vacuum gauge DCP 3000 with VSP 3000
Page 141 and 142:
Vacuum controller ■ A lot of appl
Page 143 and 144:
Vacuum controller CVC 3000E ■ CVC
Page 145 and 146:
VACUU·BUS TM -compatible accessori
Page 147 and 148:
VACUU·LAN ® vacuum networks for l
Page 149 and 150:
Local area vacuum network VACUU·LA
Page 151 and 152:
Vacuum valves and small flange comp
Page 153 and 154:
Ball valve Ball valves VK Valves of
Page 155 and 156:
Diaphragm valve Diaphragm valves VM
Page 157 and 158:
Air admittance valve Air admittance
Page 159 and 160:
Solenoid-operated valves Solenoid-o
Page 161 and 162:
Small-flange components Vacuum valv
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
■ VACUUBRAND GMBH + CO KG Alfred-
Page 171:
Easy conversion The following table
show all

Catalog 2010 Technology for Vacuum Systems - Chiron

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?