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Pricing is valid only for USA and Canada. All prices are in U.S. dollars.
8920A$2,896.40
8925A$3,244.80
8920C-02$2,951.52
8925C-02$3,297.84

Additional Information

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8920A

 

 

Direct-Drive High Vacuum—large

ORDERING INFO1 & SPECIFICATIONS

Pricing is valid only for USA and Canada. All prices are in U.S. dollars.
Description Catalog Number
Wired for 115V, 60 Hz,
1 PH with N. American 115V Plug		 8920A
$2,896.40
 8925A
$3,244.80
Wired for 230V, 50 Hz,
1 PH with Cont. Euro. (Schuko) Plug		 8920C-02
$2,951.52
 8925C-02
$3,297.84
Two Stage Vacuum Pumps    
Welch Model 8920 8925
Free Air Displacement    
CFM (L/min) @ 60Hz 7.7(218) 11.3(320)
(L/min) m3/hr @ 50Hz (182) 10.9 (267) 16
Ultimate Pressure (Torr)5 3 x 10 -4 4 x 10 -4
Sound Level, dBA 54 55
Motor/Pump Speed (60 Hz) 1725 1725
Motor Horsepower 1/2 3/4
Oil Capacity, qt. (liters) 1.3(1.2) 1.2(1.1)
Tubing Needed, I.D. in.2 13/16, 9/16 13/16, 9/16
Intake Connection Unibarb Unibarb
Exhaust Connection Threaded
1-20		 Threaded
1-20
Weight, lbs (kg) 58.5(26.6) 69(31.3)
Dimensions L x W x H in. (cm) 20.5 x 7.1 x 10.7
(52.1 x 17.9 x 27.2)		 21.2 x 7.1 x 10.7
(53.8 x 17.9 x 27.2)
Ship Weight, lbs (kg) 68(30.8) 77(34.6)
Shipping Carton Dimensions
L x W x H in. (cm)		 29 x 11.5 x 15.5
(73.7 x 29.2 x 39.4)		 29 x 11.5 x 15.5
(73.7 x 29.2 x 39.4)

Notes:

  1. Some motors have extended voltage ranges. All single phase motors have overload protection. For explosion proof, TEFC, 3 Phase and others, consult price list.
  2. 115V, 60Hz models are CSA approved.
  3. 230V, 50Hz models are CE marked.
  4. Two-stage pumps should not be operated continuously at pressures above 10 Torr.
  5. Exhaust filters not included. See Accessories - Exhaust filters for selection.

ACCESSORIES

Pump Accessories 8920/8925
Standard Exhaust Filter 1417P-10
$337.79
Replacement Filter Element 1417G
$128.44
Directional Exhaust Filter 1417A
$377.02
Replacement Filter Element 1417G
$128.44
Exhaust Mist Eliminator 1416C
$421.97
Exhaust Connectors to Hose 1393K
$65.10

Exhaust Connectors to ISO Flange

1393G
$75.67
ISO Hinged Clamps 302202
$23.48
ISO Centering Rings 303102
$23.48
Dry Ice Traps
Coaxial Traps
Molecular Sieve Trap 543002
$671.24
Liquid Nitrogen Cold Trap
Hose Adapter 501262
$32.27
Unibarb Inlet Connector