Welch Vacuum 2581B-50 WOB-L Pinston Pump - Manual (Page 11)

11
Section 6: SPECIFICATION
6.10 Pump Specification Chart
Welch Model 2581
Free Air Displacement
CFM (L/min.) @60Hz
(100)
M3 (L/min.) @50Hz (83)
Ultimate Pressure
Torr
5
(mbar) (6.7)
Maximum Vacuum In.Hg. 29.8
Motor Horsepower
Horsepower
1/3
(watts) (250)
Tubing needed
I.D. in Inches
3/8
(I.D. in Millimeters) (10)
Intake & Exhaust Thread NPT 3/8
Weight lbs 22.5
(Kg.) (10.3)
Overall Dimensions
L in Inches (cm)
17.0 (43.2)
W in Inches (cm) 7.5 (19.1)
H in Inches (cm) 12.0 (30.5)
Shipping Weight
lbs
27.5
(Kg.) (12.5)
Shipping Dimensions
L in Inches (cm)
19.5 (49.5)
W in Inches (cm) 20.5 (52.0)
H in Inches (cm) 16.0 (40.6)
Catalog Number
Catalog Number w/ Jar & Regulator Wired for 115V, 60Hz, 1Ph with N.American 115V Plug
2581B-50
Catalog Number w/ Jar & Regulator Wired for 230V, 50Hz, 1Ph with Cont. Euro (Schuko) 230V Plug 2581C-50
Catalog Number w/ Jar & Regulator Wired for 100V, 50/60Hz, 1Ph 2581C-56