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Vacuum Pumps, Direct Drive High Vacuum Compact, Gem, Medium and Large

  Overview

The Direct Drive High Vacuum Compact, Medium and Large vacuum pumps use a two stage rotary vane oil sealed technology. The Direct Drive High Vacuum Gem Model 8890 vacuum pump uses a two stage “rotating rotor within a rotor” or gerotor technology. These compact, portable pumps are recommended for many laboratory applications, including centrifugal concentrators, vacuum ovens, freeze dryers and transfer lines.

Built-in oil anti-suckback mechanism keeps the pump isolated from the rest of the vacuum system whenever the motor stops. A gas ballast valve inhibits vapors from condensing in the pump chamber in the compact, medium and large models.

Model: cfm, L/min Torr mbar
Compact 8905 1.8, 51 2×10-3 2.7×10-3
Gem 8890 1.1, 31 1×10-1 1.3×10-1
Medium 8907 2.6, 73 1×10-4 1.3×10-4
Medium 8912 3.8, 108 1×10-4 1.3×10-4
Medium 8917 6.1, 173 1×10-4 1.3×10-4
Large 8920 7.7, 218 3×10-4 4×10-4
Large 8925 11.3, 320 4×10-4 5.3×10-4
Features of the Direct Drive High Vacuum Pumps:
  • Compact, lightweight and portable
  • Quiet operation
  • Thermal overload protection
  • Oil anti-suckback mechanisms to keep pump isolated from system when motor stops
  • Compact, Medium and Large Direct Drive models use rotary vane and have gas ballast valves to inhibit vapors from condensing in pump
  • GEM Direct Drive uses gerorator technology and has the advantage of not overheating when run continuously at any pressure

Specifications:  Vacuum Pumps, Direct Drive High Vacuum Compact, Gem, Medium and Large

NumberDescriptionPrice $
8905A Direct Drive Compact 8905 High Vacuum Pump, flow rate 1.8 cfm, 51 L/min, vacuum 2×10-3 Torr, 2.7×10-3 mbar, supplied with hose adapter and charge of vacuum pump oil, does not include exhaust filter
2,888.05
8890A Direct Drive GEM 8890 High Vacuum Pump, flow rate 1.1 cfm, 31 L/min, vacuum 1×10-1 Torr, 1.3×10-1 mbar, supplied with exhaust filter 1417
2,888.05
8890A-75 Direct Drive GEM 8890 High Vacuum Pump Kit, flow rate 1.1 cfm, 31 L/min, vacuum 1×10-1 Torr, 1.3×10-1 mbar, supplied with tubing, gauge, Model 1421 vacuum regulator, Model 1416B exhaust mist eliminator, collection flask
3,300.28
8907A Direct Drive Medium 8907 High Vacuum Pump, flow rate 2.6 cfm, 73 L/min, vacuum 1×10-4 Torr, 1.3×10-4 mbar, supplied with hose adapter and charge of vacuum pump oil, does not include exhaust filter
3,438.05
8912A Direct Drive Medium 8912 High Vacuum Pump, flow rate 3.8 cfm, 108 L/min, vacuum 1×10-4 Torr, 1.3×10-4 mbar, supplied with hose adapter and charge of vacuum pump oil, does not include exhaust filter
3,850.28
8917A Direct Drive Medium 8917 High Vacuum Pump, flow rate 6.1 cfm, 173 L/min, vacuum 1×10-4 Torr, 1.3×10-4 mbar, supplied with hose adapter and charge of vacuum pump oil, does not include exhaust filter
4,193.75
8920A Direct Drive Large 8920 High Vacuum Pump, flow rate 7.7 cfm, 218 L/min, vacuum 3×10-4 Torr, 4×10-4 mbar, supplied with hose adapter and charge of vacuum pump oil, does not include exhaust filter
4,468.75
8925A Direct Drive Large 8925 High Vacuum Pump, flow rate 11.3 cfm, 320 L/min, vacuum 4×10-4 Torr, 5.3×10-4 mbar, supplied with hose adapter and charge of vacuum pump oil, does not include exhaust filter
4,984.38
8995P-11 DirecTorr® Premium Vacuum Oil, low vapor pressure, no additives or inhibitors, higher viscosity formula for higher rpm and direct drive pumps, 1 liter, inquire about larger gallon and drum quantities
145.92
8995G-11 DirecTorr® Gold Vacuum Oil, exceptionally low vapor pressure, high stability in chemical environments, low back streaming, 1 liter, inquire about larger gallon and drum quantities
80.03
1421D Vacuum Regulator used to control vacuum level between 6.3” Hg and 29.9” Hg, inlet accepts 1/4” ID vacuum hose, stainless steel
390.72
1421 Vacuum Regulator used to control vacuum level between 6.3” Hg and 29.9” Hg, inlet accepts 1/4” ID vacuum hose, for Direct Drive GEM 8890299.81
1423B Separator or liquid trap for use on inlet to inhibit injestion of liquid or particles by pump, or on exhaust to collect vapors expelled by the pump, accepts 1/4” ID vacuum hose
187.17
1430A Hands free maintained on/off pump operation, no adaptors or special connection needed, plug directly into the power source outlet, 115V, 60HZ only
149.56
1430B Hands free momentary on/off pump operation, no adaptors or special connection needed, plug directly into the power source outlet,115V, 60HZ
215.71
1430C Hands free momentary on/off pump operation with IEC connections, no adaptors or special connection needed, plug directly between the IEC power outlet and supplied line cord, 90 – 230V.
215.55
1417 Standard exhaust filter, screw in type, filters to 0.3 micron particle size, for Direct Drive Compact 8905, Direct Drive Gem 8890, DuoSeal 1399 and 1400 (included as standard with Gem 8890)
205.06
1417P-7 Standard exhaust filter, screw in type, filters to 0.3 micron particle size, for Direct Drive Medium 8907, Direct Drive Medium 8912 and Direct Drive Medium 8917
376.75
1417P-10 Standard exhaust filter, screw in type, filters to 0.3 micron particle size, for Direct Drive Large 8920, Direct Drive Large 8925, DuoSeal 1376, 1402 and 1405
480.58
1417P-20 Standard exhaust filter, screw in type, filters to 0.3 micron particle size, for DuoSeal 1397 and 1374
703.98
1417L Replacement filter element for exhaust filter 1417102.85
1417R Replacement filter element for exhaust filter 1417-7153.95
1417G Replacement filter element for exhaust filter 1417P-10192.53
1417H-01 Replacement filter element for exhaust filter 1417P-20236.18
1417A Directional exhaust filter, screw in type, 360° swivel outlet with tubing connector, for Direct Drive Medium 8907, Direct Drive Medium 8912, Direct Drive Medium 8917, Direct Drive Large 8920, Direct Drive Large 8925, DuoSeal 1376, 1402 and 1405
541.42
1417A-01 Gasket replacement exhaust filter 1417A57.56
1417G Element for exhaust filter 1417A192.53
1417C-02 Directional exhaust filter, screw in type, 360° swivel outlet with tubing connector, for DuoSeal 1400
551.54
1417B Directional exhaust filter, screw in type, 360° swivel outlet with tubing connector, for DuoSeal 1374 and 1397
828.58
1417C-01 Gasket replacement exhaust filter 1417C57.43
1417H Element for exhaust filter 1417B267.81
1416B Exhaust mist eliminator for Direct Drive Gem 8890, for applications in which conventional exhaust filters saturate, separates oil mist and returns oil to pump
Inquire
1416C-01 Exhaust mist eliminator for DuoSeal 1380, 1376, 1402, 1405, for applications in which conventional exhaust filters saturate, separates oil mist and returns oil to pump
785.57
1416C Exhaust mist eliminator for Direct Drive Medium 8907, Direct Drive Medium 8912, Direct Drive Medium 8917, Direct Drive Large 8920 and Direct Drive Large 8925, for applications in which conventional exhaust filters saturate, separates oil mist and returns oil to pump
632.50
1416H Exhaust mist eliminator for Direct Drive Compact 8905, for applications in which conventional exhaust filters saturate, separates oil mist and returns oil to pump
635.53
1416D Hermatically sealed oil mist eliminator, prevents vacuum pump gases from escaping into the lab environment, coalesces oil mist and allows it to drain back into pump, stainless steel, borosilicate microfiber element and fluoroelastomer gasket, exhaust port accepts 13/16 ID hose, needs adaptor kit for pump
1,020.73
1416E Pump adaptor kit for 1416D oil mist eliminator279.06
1417Y-05 Replacement element for 1416D oil mist eliminator203.67
541922-NW16 Coaxial trap, ISO NW 16, reduces oil backstreaming, stainless steel, to 4 cfm or 140 L/min, 3.75 inches Ø, specify copper or stainless steel element
Inquire
541922-NW25 Coaxial trap, ISO NW 25, reduces oil backstreaming, stainless steel, to 12 cfm or 340 L/min, 5.5 inches Ø, specify stainless steel element
Inquire
1420H-14 Liquid nitrogen or dry ice cold trap, removable 3 quart center well for dry ice and alcohol slurry, cold temperature up to 12 hours depending on vapor load, straight tube connections, 10 inches Ø, 7/16 inch OD tubing required
1,200.49
1393J Exhaust connectors to hose for Direct Drive Compact 8905, Direct Drive Gem 8890 and DuoSeal 140056.42
1393K Exhaust connectors to hose for Direct Drive Medium 8917, Direct Drive Large 8920, Direct Drive Large 8925, DuoSeal 1402 and 140594.50
1393F Exhaust connectors to ISO flange for Direct Drive Compact 8905, Direct Drive Gem 8890 and DuoSeal 140061.48
1393G Exhaust connectors to ISO flange for Direct Drive Medium 8917, Direct Drive Large 8920, Direct Drive Large 8925, DuoSeal 1402 and 1405108.79
302201 ISO NW 16 aluminum hinged clamp for Direct Drive Compact 8905 and DuoSeal 140029.48
302202 ISO NW 25 aluminum hinged clamp for Direct Drive Medium 8907, Direct Drive Medium 8912, Direct Drive Medium 8917, Direct Drive Large 8920, Direct Drive Large 8925, DuoSeal 1402 and 1405
33.40
303101 ISO NW 16 centering rings, stainless steel with fluoroelastomer o-ring, for Direct Drive Compact 8905 and DuoSeal 140021.64
303102 ISO NW 25 centering rings, stainless steel with fluoroelastomer o-ring, for Direct Drive Large 8920, Direct Drive Large 8925, DuoSeal 1402 and 140533.28
8905K-06 Unibarb inlet connector for Direct Drive Compact 8905, hose ID 3/16 and 7/16 inch
107.14
8907K-06 Unibarb inlet connector for Direct Drive Medium 8907, Direct Drive Medium 8912 and Direct Drive Medium 8917, hose ID 7/16 and 13/16 inch
112.97
8920K-06 Unibarb inlet connector for Direct Drive Large 8920 and Direct Drive Large 8925, hose ID 9/16 and 13/16 inch
139.43
726021 Dial vacuum gauge for measuring vacuum level, brass, 2 inches diameter, 1/8 inch male NPT connection
56.65
726020 Dial vacuum gauge for measuring vacuum level, brass, 2.5 inches diameter, 1/4 inch male NPT connection
107.75


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