Welch 8905 Owner's Manual page 13

SPECIFICATION
Free Air Displacement
CFM (L/min) @ 60Hz
(L/min) m3h @ 50Hz
Normal Pumping Speed
CFM (L/min) @ 60Hz
(L/min) m3h @ 50Hz
Guaranteed Ultimate Pressure* Torr
Water Vapor Tolerance (capacity), Torr
Water Vapor Tolerance (capacity), g/hr
Sound Level dBA
Motor/Pump Speed
RPM @ 60Hz
RPM @ 50Hz
Motor Voltage 50/60Hz Single Phase
Current 115V (230V) @ 60Hz
Current 230V @ 50Hz
Motor Horsepower
Oil Capacity , quarts (liters)
Intake Connection
Tubing needed, I.D.
in inches
in mm
Exhaust Connection
Gas Ballast Connection
Pump Weight
lbs.
Kg.
Overall Dimensions
Length (inch / cm)
Width (inch / cm)
Height (inch / cm)
Shipping Weight
lbs.
Kg.
Shipping Carton Dimensions
Length (inch / cm)
Width (inch / cm)
Height (inch / cm)
Exhaust Filter (Optional) Cat. No.
Oil Type Cat. No.
* Partial measurement based upon the American Vacuum Society Test Procedure No. AVS 5.1-1963
using a trapped McLeod Gauge.
8907
2.6 (70)
(56) 3.68
2.3 (64)
(53) 3.2
-4
1 x 10
19
-
50
1725
1425
4.6A (2.3A)
2.1A
1/2
1.0 (0.95)
Unibarb for
7/16" and 13/16" 7/16" and 13/16"
I.D. Hose,
Threaded for
1-1/8"-20
7/16 or 13/16
11 or 20
1"-20 Thread
10-32 Thread
40
18
18.8 / 47.7
6.5 / 16.6
9.6 / 24.4
46
21
28.9 / 73.5
10.8 / 27.5
13.7 / 35.0
1416C / 1417P-7 1416C / 1417P-7
8995P / 8995G 8995P / 8995G
13
8912
3.8 (108)
(86) 5.37 (138) 8.63
3.4 (96)
(80) 4.78 (125) 7.51
-4
1 x 10
12
-
50
1725
1425
4.6A (2.3A) 4.6A (2.3A)
2.1A
1/2
0.9 (0.86)
Unibarb for Unibarb for
7/16" and 13/16"
I.D. Hose, I.D. Hose,
Threaded for Threaded for
1-1/8"-20
7/16 or 13/16 7/16 or 13/16
11 or 20
1"-20 Thread 1"-20 Thread
10-32 Thread 10-32 Thread
41
18
18.8 / 47.7 18.8 / 47.7
6.5 / 16.6
9.6 / 24.4
46
21
28.9 / 73.5 28.9 / 73.5
10.8 / 27.5 10.8 / 27.5
13.7 / 35.0 13.7 / 35.0
1416C / 1417P-7
8995P / 8995G
8917
6.1 (173)
5.3 (150)
-4
1 x 10
12
-
50
1725
1425
2.1A
1/2
0.8 (0.76)
1-1/8"-20
11 or 20
48
22
6.5 / 16.6
9.6 / 24.4
53
24