VERDERAIR VA 25 Air-Operated Diaphragm Pump
Operations Manual - Double Diaphragm Pump
Operations Manual - Double Diaphragm Pump
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Technical Data<br />
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<strong>25</strong> psi (0.86 MPa, 8.6 bar)<br />
<strong>Air</strong> pressure operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1<strong>25</strong> psi (0.14-0.86 MPa, 1.4-8.6 bar)<br />
Fluid displacement per cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.17 gal. (0.64 liters)<br />
<strong>Air</strong> consumption at 70 psi (0.48 MPa, 4.8 bar), 20 gpm (76 lpm) . . . . . . . . . . . . . . . <strong>25</strong> scfm<br />
Maximum values with water as media under submerged inlet<br />
conditions at ambient temperature:<br />
Maximum air consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Maximum free-flow delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Maximum pump speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Maximum suction lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Maximum size pumpable solids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/8 in. (3.2 mm)<br />
Recommended cycle rate for continuous use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 - 140 cpm<br />
Recommended cycle rate for circulation systems . . . . . . . . . . . . . . . . . . . . . . . . . . 20 cpm<br />
Sound Power*<br />
at 70 psi (0.48 MPa, 4.8 bar) and 50 cpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
at 100 psi (0.7 MPa, 7.0 bar) and full flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Sound Pressure**<br />
at 70 psi (0.48 MPa, 4.8 bar) and 50 cpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
at 100 psi (0.7 MPa, 7.0 bar) and full flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
* Sound power measured per ISO-9614-2.<br />
** Sound pressure was tested 3.28 ft (1 m) from equipment.<br />
All trademarks mentioned in this manual are the property of their respective owners.<br />
67 scfm<br />
50 gpm (189 lpm)<br />
280 cpm<br />
16 ft (4.9 m) dry, 29 ft (8.8 m) wet<br />
78 dBa<br />
90 dBa<br />
84 dBa<br />
96 dBa<br />
Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see page 24<br />
<strong>Air</strong> inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/2 npt(f)<br />
Fluid inlet size<br />
Aluminum (<strong>VA</strong><strong>25</strong>AA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Plastic (<strong>VA</strong><strong>25</strong>PP, <strong>VA</strong><strong>25</strong>CC, and <strong>VA</strong><strong>25</strong>KP) . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Stainless Steel (<strong>VA</strong><strong>25</strong>SA, <strong>VA</strong><strong>25</strong>SC, and <strong>VA</strong><strong>25</strong>SP) . . . . . . . . . . . . . . . . . . . . . .<br />
Fluid outlet size<br />
Aluminum (<strong>VA</strong><strong>25</strong>AA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Plastic (<strong>VA</strong><strong>25</strong>PP, <strong>VA</strong><strong>25</strong>CC, and <strong>VA</strong><strong>25</strong>KP) . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Stainless Steel (<strong>VA</strong><strong>25</strong>SA, <strong>VA</strong><strong>25</strong>SC, and <strong>VA</strong><strong>25</strong>SP) . . . . . . . . . . . . . . . . . . . . . .<br />
Weight<br />
Aluminum (<strong>VA</strong><strong>25</strong>AA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Polypropylene and Conductive Polypropylene (<strong>VA</strong><strong>25</strong>PP and <strong>VA</strong><strong>25</strong>CC). . . . . .<br />
PVDF (<strong>VA</strong><strong>25</strong>KP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Stainless Steel<br />
with conductive polypropylene center (<strong>VA</strong><strong>25</strong>SC) . . . . . . . . . . . . . . . . . .<br />
with polypropylene center (<strong>VA</strong><strong>25</strong>SP). . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
with aluminum center (<strong>VA</strong><strong>25</strong>SA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Wetted parts include material(s) chosen for seat, ball, and diaphragm options, plus<br />
the pump’s material of construction<br />
<strong>VA</strong><strong>25</strong>AA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
<strong>VA</strong><strong>25</strong>PP and <strong>VA</strong><strong>25</strong>CC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
<strong>VA</strong><strong>25</strong>KP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
<strong>VA</strong><strong>25</strong>SA, <strong>VA</strong><strong>25</strong>SC, and <strong>VA</strong><strong>25</strong>SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Non-wetted external parts<br />
Aluminum (<strong>VA</strong><strong>25</strong>AA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Plastic (<strong>VA</strong><strong>25</strong>PP, <strong>VA</strong><strong>25</strong>CC, and <strong>VA</strong><strong>25</strong>KP) . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br />
Stainless Steel (<strong>VA</strong><strong>25</strong>SA, <strong>VA</strong><strong>25</strong>SC, and <strong>VA</strong><strong>25</strong>SP) . . . . . . . . . . . . . . . . . . . . . .<br />
1 in. npt(f) or 1 in. bspt<br />
1 in. raised face ANSI/DIN flange<br />
1 in. npt(f) or 1 in. bspt<br />
1 in. npt(f) or 1 in. bspt<br />
1 in. raised face ANSI/DIN flange<br />
1 in. npt(f) or 1 in. bspt<br />
23 lb. (10.5 kg)<br />
18 lb. (8.2 kg)<br />
26 lb (11.8 kg)<br />
36.3 lb. (16.5 kg)<br />
37.3 lb. (16.9 kg)<br />
41.4 lb. (18.8 kg)<br />
Aluminum<br />
Polypropylene<br />
PVDF<br />
Stainless Steel<br />
aluminum, coated carbon steel<br />
stainless steel, polypropylene<br />
stainless steel, polypropylene or aluminum<br />
(if used in center section)<br />
859.0088 23
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