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WOB-L piston pumps WOB-L 2581
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Piston Pumps
WOB-L® 2581

Item# 2581B-50 2581B-24 2518C-24

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Description

Product Details

  • Economical
  • Oil Free
  • Adjustable Vacuum

Reliable WOB-L Piston pump is perfect for many common laboratory vacuum applications. Features: Vacuum to 5 Torr (29.8"Hg). Includes Vacuum Regulator and Gauge - simple to adjust and monitor vacuum level. Muffler quiets pump and filters discharge air. For use with dry or aqueous vapor applications only.

Technical Data

Technical Data

Model Number
2511
2522
2534
2546
2561
2567
2581
2585
Applications
Filtration, Aspiration, Desiccation, Replace water aspirator, Vacuum Drying,
Filtration (1 to 2 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying
Filtration (1 to 4 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying
Filtration (1 to 6 funnels), Aspiration, Desiccation, SPE, Replace water aspirator, Vacuum Drying
Vacuum Ovens less than 2 ft3 (57 liters); Vacuum filtration up to 6 funnels
Vacuum filtration up to 6 funnel manifold; Lab automation - aspiration of systems utilizing 96 / 256 well format; Welchnet lab installations up to 10 outlet fixtures (geneneral use, filtration)
Vacuum Ovens 2 to 4.5 ft3 (57 to 127 liters); Glove Box transfer chamber and purge / fill cycles - up to 30 ft3 (0.84 m3)
Vacuum filtration up to (2) 6 funnel manifolds; Lab automation - aspiration of systems utilizing 96 / 256 well format; Welchnet lab installations up to 20 outlet fixtures (geneneral use, filtration)
Type
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Laboratory Vacuum Pump
Free Air Displacement cfm (l/min.) @60Hz
0.39(11)
0.76(22)
1.2(34)
1.6(45)
2.3 (66)
3.5(100)
3.5(100)
7.1(201)
Free Air Displacement m3/hr (l/min.) @50Hz
0.55(9.2)
1.1(18)
1.7(28)
2.3(38)
3.3 (55)
4.9(83)
4.9(83)
10(168)
Ultimate Pressure
219(292)
100(133)
70(93)
60(80)
5(6.7)
60(80)
5(6.7)
60(80)
Maximum Vacuum
21.3
26
27.2
27.6
29.8
27.6
29.8
27.6
Max Pressure PSIG (pascal)
33(3.3 x 105)
100(106)
50(5 x 105)
100(106)
Motor Horsepower (watts)
1/30(25)
1/8(93)
1/8(93)
1/4(190)
1/3(250)
1/3(250)
1/3(250)
1/3(250)
Adjustable Vac. / Gas Ballast
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Tubing Needed
3/16(5)
3/16(5)
3/16(5)
3/16(5)
1/4(7)
1/4(7)
1/4(7)
1/4(7)
Intake Thread NPT
3/16 in. Hose
1/4
1/4
1/4
1/4
1/4
1/4
1/4
Overall Dimensions LxWxH in. (cm)
7.6x4.5x7.5 (19.4x11.4x19.1)
8.1x8.8x10 (20.6x22.4x25.4)
8.1x8.8x10 (20.6x22.4x25.4)
10x7.5x9 (25.4x19.1x7.7)
17.3x6.5x10.5 (43.9x16.5x26.7)
15.0x10x10 (38.1x25.4x25.4)
17x7.5x12 (43.2x42.3x19.1)
17x7.5x12 (43.2x42.3x19.1)
Ship Weight
6(2.7)
17(7.7)
17(7.7)
17(7.7)
24(10.9)
24(10.9)
32(14.5)
32(14.5)
Shipping Carton Dimensions LxWxH in. (cm)
11x7x8.3 (28x18x21)
15.3x12.3x12.7 (39x31x32)
15.3x12.3x12.7 (39x31x32)
15.3x12.3x12.7 (39x31x32)
21x12x15 (53x30x38)
21x12x15 (53x30x38)
21x12x15 (53x30x38)
21x12x15 (53x30x38)
Intake Catch Jar
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Exhaust Catch Jar
Yes
Yes
Yes
Adjustable Vacuum
Knob
Knob
Knob
Knob
Knob
Knob
Knob
Adjustable Pressure
Yes
Yes
Yes
Vacuum Gauge
Dial
Dial
Dial
Dial
Dial
Dial
Dial
Pressure Gauge
Dial
Dial
Dial

Description

The WOB-L® 2581 dry piston pump is ideal for pumping water vapor, and for applications with vacuum requirements above 6.7 mbar. The pump provides continuous, reliable, high flow vacuum. It is light and compact. Its oil-free operation reduces maintenance. Pump comes with inlet liquid trap, mounted vacuum gauge and vacuum regulator.

Note: pump is not recommended for pumping organic, acidic and basic vapors.

Technical Data

Article Number
U2581C-50
Max. pumping speed at 50 Hz in m³/h (l/min)
4.9 (81.7)
Max pumping speed at 60 Hz in m³/h (l/min)
6 (100)
Max. pumping speed at 60 Hz in cfm (l/min)
3.5 (100)
Ultimate pressure in mbar (Torr)
6
Wired for
230V, 50Hz
Dimensions (W/D/H) in mm
432/191/305
Weight kg (lbs)
11.2 (24.7)

Service / Accessories

  • Replacement container (Glas) for WOB-L® 2561, 2567, 2581, 2585 - U1415B
  • Connection-Kit 5 for Vacuum oven - 404005
  • Connection-Kit 6 - 404006
  • Maintenance Kit for WOB-L® 2581 - U2581K-03
  • Seal Kit for WOB-L® 2581 - U2581K-04
  • Vacuum regulator for WOB-L® 2581, 2585 - U2585K-50
  • Post-Pump Protection - Exhaust Silencer for WOB-L® 2581 - U1412E

Downloads

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Manual

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