Graymills DDP .375' Pump - Manual (Page 3)

4
CAUTION
D Verify the chemical compatibility of the pump wetted parts and the substance being pumped, flushed or
recirculated. Chemical compatibility may change with temperature and concentration of the chemical(s)
within the substance being pumped, flushed or recirculated.
D The pump should not be used for the structural support of the piping system. Be certain system compo-
nents are properly supported to prevent stress on the pump parts.
D Do not allow pump to operate dry for long periods of time; this may cause unnecessary wear or damage
to the pump.
D Maximum temperature limits are based upon mechanical stress only. Certain chemicals will significantly
reduce maximum safe operating temperatures. Consult Graymills for chemical compatibility and temper-
ature limits.
SAFETY PRECAUTIONS
United States Government safety standards have been adopted under the Occupational Safety and Health Act. You should
consult these standards—particularly the General Standards, Part 1910, and the Construction Standards, Part 1926.
Technical Data
For Pumps with Teflon
r
Diaphragms
Maximum fluid working pressure 100 psi (0.7 MPa, 7 bar) . . . . . .
Air pressure operating range . . . 20 to 100 psi (0.14 to 0.7 MPa, .
1.4 to 7 bar ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum air consumption
5.5 scfm (see chart) . . . . . . . . . . . . . .
Maximum free flow delivery 6.5 gpm (24.6 lpm) . . . . . . . . . . . . .
Maximum pump speed 330 cpm . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum suction lift 7 ft (2.1 m) dry, 12 ft (3.7 m) wet . . . . . . . .
Maximum size pumpable solids 1/16 in. (1.6 mm) . . . . . . . . . . . .
Sound power level,
at full flow at 100 psi (0.7 MPa, 7 bar)
85 dBa . . . . . . . . . . . . .
Sound power level,
at 70 psi (0.48 MPa, 4.8 bar) and 1 gpm (3.8 lpm)
78 dBa . . .
Operating temperature range 40 to 150
_ F (4.4 to 65.5_ C)
. . . . . . . .
Air inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(f)
Fluid inlet and outlet size . . . . . . . . . . . . . . . . . . . 3/8” npt(f)
Wetted parts vary by models
See pages 28 and 30 . . . . . . .
Non-wetted external parts polyester (labels) glass–filled . .
polypropylene with conductive SST fibers
Weight (approximate)
. . . . . . . . . . . . . 4.75 lb (2.2 kg) . . . . .
Sound power level measured per ISO standard 9614–2.
Viton R , Teflon r , and Hytrel r are registered trademarks of the
DuPont Co.
Loctite r is a registered trademark of the Loctite Corporation.
Santoprene r is a registered trademark of the Monsanto Com-
pany.
Technical Data
For Pumps with Hytrel
r
Diaphragms
Maximum fluid working pressure . . . . 100 psi (0.7 MPa, 7 bar)
Air pressure operating range . . . . 20 to 100 psi(0.14 to 0.7 MPa,
. . . . . . . . . . . . . . . . . . 1.4 to 7 bar) . . . . . . . . . . . . . . . . . . . . . . .
Maximum air consumption . . . . . . . . . . . . 5.5 SCFM (see chart)
Maximum free flow delivery . . . . . . . . . . . . . 7 gpm (26.5 lpm)
Maximum pump speed
. . . . . . . . . . . . . . . . . . . . . 330 cpm . . . .
Maximum suction lift 12 ft (3.7 m) dry; 21 ft (6.4 m) wet . . . . .
Maximum size pumpable solids . . . . . . . . . . . .1/16 in. (1.6 mm)
Sound power level,
at full flow at 100 psi (0.7 MPa, 7 bar) . . . . . . . . . . . . . 85
dBa
Sound power level,
at 70 psi (0.48 MPa, 4.8 bar) and 1 gpm (3.8 lpm) . . 78 dBa
Operating temperature range. 40 to 150
_ F (4.4 to 65.5_ C)
Air inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 npt(f)
Fluid inlet and outlet size. . . . . . . . . . . . . . . . . . . . .3/8 npt(f)
Wetted Parts vary by model. . . . . . . . . See pages 27 and NO TAG.
Non-wetted external parts
polyester (labels) glass–filled . .
polypropylene with conductive SST fibers
Weight (approximate)
. . . . . . . . 4.75 lb (2.2 kg) . . . . . . . . . . . . .
Sound power level measured per ISO standard 9614–2.
Viton R , Teflon r , and Hytrel r are registered trademarks of the
DuPont Co.
Loctite r is a registered trademark of the Loctite Corporation.
Santoprene r is a registered trademark of the Monsanto Com-
pany.