Welch Vacuum 2534 WOB-L Pinston Pump User Manual
Page 9
Section 5: TROUBLESHOOTING
5.10 TROUBLESHOOTING
TABLE
Poor
Pumping
Speed
Poor
Vacuum
Loud
Unit
Possible Cause
Corrective Action
X
X
X
Damaged valves
Replace fl apper valves
X
X
X
Debris in valves
Remove debris and check for valve damage
X
X
X
Damaged gasket
Replace gasket
X
X
X
Loose head screw
Tighten head screw
X
X
X
Loose fi tting
Tighten fi tting
Section 6: SPECIFICATION
6.10 SPECIFICATION
CHART
Welch Model
2522
2534
Free Air Displacement
CFM (L/min.) @60Hz
0.76 (22)
1.20 (34)
M3 (L/min.) @50Hz
0.66 (19)
1.0 (28)
Maximum Continuous Pressure
PSIG (Pascal)
100
50
Maximum Vacuum
In.Hg. (Torr)
25.6 (110)
26.2 (950
Motor Horsepower
Horsepower
1/8
1/7
Tubing needed
I.D. in Inches
1/4
1/4
Weight lbs
11.7
11.7
(Kg.)
(5.3)
(5.3)
Catalog Number
Wired for 115V, 60Hz,1Phwith North American 115V Plug
2522B-01
2534B-01
Wired for 220V, 50Hz, 1Ph with European (Schuko) Plug
2522C-02
-
Wired for 230V, 60Hz, 1Ph with Cont. Euro 230V Plug
2522C-10
-
NOTE: *230V 60Hz Models have a maximum continuous pressure of 50PSIG (5x10
5
Pascal)
**50Hz models are provided with CE agency mark.
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