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Standard Dia-Vac Performance Sheet

ADI's Dia-Vac® Pumps can Pass Your Gas at the Speed of Need! Due to an increased interest in reducing the pressure, vacuum and/or flow on the Dia-Vac® pumps, our engineers designed a modified eccentric design. This allows you to customize your Dia-Vac® pump to meet your application requirements while at the same time increasing the diaphragm and bearing life. The normal eccentric size is .222 on the standard Dia-Vac® Pumps.

Please note that the chart below is not meant to be read as a combination of pressure and vacuum at the same time, only pressure or vacuum.

Single Head Pump
Double Head Pump
Quad Head Pump

Standard
Flow Averages

Single Head Dia-Vac pumps (top)

Model #

PSIG
(Max Pressure)

Bar
(Max Pressure)

InHg
(Ultimate Vacuum)

Mbar
(Ultimate Vacuum)

CFM
(Max Flow)

LPM
(Max Flow)

R061

5.7

0.39

8.6

291

.34

9.7
R081

8.4

0.58

11.6

393

.45

12.7
R101

10.4

0.72

13.6

461

.47

13.3
R121

15.0

1.04

16.1

545

.56

15.8
R151

22.0

1.51

18.8

637

.65

18.6
R181

33.0

2.27

21.4

725

.75

21.2
R201

42.1

2.90

22.4

759

.82

23.4
R221
(std.)

53.0

3.66

24.0

812

.92

26.0
R221
(single head- high spd)

59.7

4.1

23.8

805

1.34

38.2
R251

60.0

4.14

24.5

830

.97

27.4
R271

70.0

4.83

25.4

860

1.06

30.0

Double Head Dia-Vac Pumps (top)

Model #

PSIG
(Max Pressure)

Bar
(Max Pressure)

InHg
(Ultimate Vacuum)

Mbar
(Ultimate Vacuum)

CFM
(Max Flow)

LPM
(Max Flow)

RVA2
High Vacuum- Series

N/A

N/A

29.5

998

1.0

28
R152
Para/Series**

23/100*

1.59/7.0*

18.8/26.1

636/883

1.23/0.79

34.8/22.5
R182
Para/Series**

35.8/100*

2.47/7.0*

21.6/27.3

731/924

1.52/0.90

43/25.7
R202
Para/Series**

43.5/100*

3.00/7.0*

23/28.6

778/968

1.64/0.99

46.5/28.3
R222
Para/Series**

59.5/100*

4.10/7.0*

24.2/28.5

819/965

1.73/0.93

49.1/26.3
R252
Para/Series**

72.2/100*

4.98/7.0*

24.8/28.7

839/971

1.95/1.12

55.2/31.8
R272
Para/Series**

78/100*

5.38/7.0*

25.4/29.3

860/992

2.20/1.22

62.5/34.8
R222
Hi-Spd Para/Ser.**

67.5/100*

4.65/7.0*

24.1/28.6

816/968

2.56/1.28

72.7/36.5

Quad Head Dia-Vac Pumps (top)

Model #

PSIG
(Max Pressure)

Bar
(Max Pressure)

InHg
(Ultimate Vacuum)

Mbar
(Ultimate Vacuum)

CFM
(Max Flow)

LPM
(Max Flow)

RVA4
Hi Vac Series**

N/A

N/A

29.9

1012

1.14

32.5
Quad head
Hi Spd Para/Series**

65/100*

4.4/7.0*

29.2/29.5

812/1000

5.0/2.45

150/70
R224
Para/Series**

55/100*

3.8/7.0*

24/29.5

812/998

3.5/0.95

100/27
R254
Para/Series**

75.8/100*

5.23/7.0*

24.9/29.9

843/1012

3.81/1.11

108/32
* Continuous pressure in excess of 75 PSI should be avoided due to decreased diaphragm and bearing life.

** (See head connection schematics page)

Notes:
  • Test results are averaged, and therefore should be considered approximate.
  • Tests performed with 316ss head, Teflon® diaphragm, 3/8 inch diameter hose x 5 ft. line at 75° F, using a std. 1725 rpm motor at 60 Hz.
  • These test results are for reference only, and are intended to help provide information to the user when determining which pump to buy. Actual pump performance will depend upon the users' applications.