• PRODUCT AVAILABILITY: Did you know you can view a product's availability right on the product page? Simply enter the quantity you want to purchase and the current availability will appear below the item.

Welch

Self-Cleaning Dry Vacuum System

Not yet rated

Self-Cleaning Dry Vacuum System

Additional Views

For use with Concentrators and Rotary Evaporators

  • Fluorinated plastics used on all wetted parts
  • Solvent resistant at boiling points under 100°C
  • Portable

System is powered by a 1/8 hp, corrosion-resistant, PTFE pump. All wettable parts, including the diaphragm and valves are PTFE. Vacuum level regulator and built-in dial guage allow easy control of pressure to prevent sample bumping or foaming. Switchable gas ballast inhibits vapor condensation inside pump heads. An inlet separator traps ejected condensed solvent vapors. A self-cleaning purge automatically runs for two minutes at shut-down to expell unwanted residue, extending the diaphragm life. Use with rotary evaporators up to 5 L capacity. A cold trap, such as Welch 1420H-14 (7893R90) is recommended when using this pump with centrifugal concentrators. Also recommended for use with vacuum ovens up to 28 L capacity.

Thomas No.WELCH No.Free Air DisplacementULTIMATE PressureTakes Tubing (i.d.)Power
7893Q0520250134 lpm (1.2 cfm)10 torr1/4"115V
1233K7320250334 lpm (1.2 cfm)9 torr1/4"230V
1234X1320270132 lpm (1.1 cfm)2 torr3/8"115V
1233K742027C0332 lpm (1.1 cfm)2 torr3/8"230V

Please Enter Your Order Info

Filter by:

  • Clear Filters
Product Detail
Thomas No.
7893Q05
Mfr. No.
202501
Description
Self-Cleaning Dry Vacuum System, 115V 60Hz 1Ph
list price/quantitytotal
$0.00
Thomas No.
1208U28
Mfr. No.
202601
Description
Self-Cleaning Dry Vacuum system, 2 torr, 35 l/min, dial gauge, 115V
list price/quantitytotal
$0.00
Thomas No.
1208U29
Mfr. No.
202801
Description
Self-Cleaning Dry Vacuum system, 2 torr, 35 l/min, programmable, 115V
list price/quantitytotal
$0.00
Thomas No.
1233K73
Mfr. No.
202503
Description
9Torr PMP w / Dial Gaug230V/50Hz
list price/quantitytotal
$0.00
Thomas No.
1233K74
Mfr. No.
202703
Description
2Torr Pump w / Dig Gaug230V/50Hz
list price/quantitytotal
$0.00
Thomas No.
22A00D793
Mfr. No.
202901
Description
Self Cleaning, Programmable, High Throughput Chemical Duty Dry Vacuum System, 70 LPM x 20 torr, 115v/60hz, 1ph
list price/quantitytotal
$0.00
$0.00 (0 Items)

Write A Review