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Claw Medical Vacuum Systems

Pipe Size requirements

System CFM

Minimum Pipe 

Size for  

100 feet

Minimum Pipe 

Size for  

300 feet

Minimum Pipe 

Size for  

600 feet

5

1.0

1.25

1.5

7

1.0

1.25

1.5

11

1.25

1.5

1.5

21

1.25

1.5

1.5

26

1.25

1.5

2.0

32

1.25

1.5

2.0

38

1.5

2.0

2.5

52

1.5

2.0

2.5

58

1.5

2.5

2.5

63

2.0

2.5

2.5

65

2.0

2.5

3.0

87

2.0

2.5

3.0

104

2.0

3.0

3.5

111

2.5

3.0

3.5

154

2.5

3.0

3.5

156

2.5

3.5

4.0

168

2.5

3.5

4.0

195

3.0

3.5

4.0

258

3.0

3.5

4.0

260

3.5

4

5.0

387

3.5

4

5.0

516

4

5

6.0

If the system extends beyond 600 equivalent straight feet, use one 

size larger pipe.

approximate system CFm equals the number  

of pumps running times CFm in table below.

(Data below is for reference only, if actual pump  

CFm is higher than shown, use the higher value.)

HP

Vane Pump 

CFM @ 19”

Claw Pump 

CFM @ 19”

1.0

2.0

1.5

7

2.0

11

16

3.0

17

21

4.0

29

5.0

26

5.0

38

5.4

38

6.4

52

7.5

52

65

8.7

77

10.0

65

84

10.0

77

15.0

111

129

20.0

137

25.0

168

Pipe Size

Equivalent length 

for 90° elbow, cross, 

or tee 

Equivalent length 

for 45° elbow

3.0 feet

1.5 feet

1.5

3.75 feet

1.8 feet

2.0

5.0 feet

2.5 feet

2.5

6.25 feet

3.1 feet

3.0

7.5 feet

3.8 feet

3.5

8.78 feet

4.4 feet

4.0

10.0 feet

5.0 feet

5.0

12.5 feet

6.25 feet

Summary of Contents for CVPT Series

Page 1: ...not avoided WILL result in death or serious injury Warning indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury Caution indicates a potentially haz...

Page 2: ...eiver Tank The receiver tank in a Powerex Medical Vacuum System is plumbed so that it sees the system vacuum It is not pressurized in normal use and should not be connected to any pressure sources The...

Page 3: ...ctrical supply before servicing the equipment Electrical shock hazard Make sure the system is grounded in accordance with NEC and local requirements All electrical hook ups must be performed by a qual...

Page 4: ...f the system extends beyond 600 equivalent straight feet use one size larger pipe Approximate system CFM equals the number of pumps running times CFM in table below Data below is for reference only if...

Page 5: ...he vacuum level is maintained and the minimum run timer conditions are satisfied 7 Check for excessive vibration unusual noises or leaks during operation If problems are detected shut down the system...

Page 6: ...maintenance schedule relates to the normal operating conditions If the circumstances and load condition are adverse shorten the interval time and perform maintenance accordingly Maintenance LUBRICATIO...

Page 7: ...eck drive coupling replace if needed 2 Verify that pump shaft turns freely repair or replace as necessary 3 Check vacuum discharge piping to verify air is being exhausted repair or replace as necessar...

Page 8: ...ns iii that have been materially modified without the prior written approval of Powerex or iv that experience failures resulting from operation either intentional or otherwise in excess of rated capac...

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