CHECK-MATE PUMPS - Graco Protected URL - Graco Inc.
CHECK-MATE PUMPS - Graco Protected URL - Graco Inc.
CHECK-MATE PUMPS - Graco Protected URL - Graco Inc.
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
CALCULATIONS<br />
Calculations<br />
Bead Size Diameter Gallons (Liters) per Feet (Meters) per<br />
in (mm) 1000 Lineal Foot Lineal Gallon<br />
1/16 (1.7) 0.16 (0.1) 6000 (1829)<br />
3/32 (2.4) 0.36 (0.3) 2700 (823)<br />
1/8 (3.2) 0.64 (0.5) 1500 (457)<br />
3/16 (5) 1.44 (1.2) 675 (206)<br />
1/4 (6.3) 2.55 (2.1) 375 (114)<br />
5/16 (8.3) 3.98 (3.3) 240 (73)<br />
3/8 (9.5) 5.74 (4.8) 165 (50)<br />
1/2 (12.7) 10.20 (8.5) 95 (29)<br />
5/8 (15.8) 15.92 (13.3) 50 (15)<br />
3/4 (19) 22.95 (19.1) 35 (11)<br />
1 (25.4) 40.80 (34) 19 (6)<br />
Example 1<br />
Pressure drop or ∆P<br />
∆P = .0273 Q V L<br />
D 4<br />
Where:<br />
P = Pressure drop in psi (bar, MPa)<br />
V = Viscosity in poise (PS)<br />
D = Diameter in inches (mm)<br />
Q= Flow rate in gpm (lpm)<br />
L = Length in feet (m)<br />
Other ∆P Considerations:<br />
* 0.094 diameter nozzle = 300 psi (21 bar, 2.1 MPa)<br />
* Gun drop ∆P<br />
Ultra-Lite® 6000 = 400 psi (28 bar, 2.8 MPa)<br />
Ultra-Lite 4000 = 400 psi (28 bar, 2.8 MPa)<br />
* Mastic Regulator ∆P = 400 psi (28 bar, 2.8 MPa)<br />
* Straight Swivel 1/2 in(12.7 mm) = 200 psi (14 bar, 1.4 MPa)<br />
* Z Swivel 1/2 in (12.7 mm) = 200 psi (14 bar, 1.4 MPa)<br />
* Filters = 100-400 psi (7-28 bar, 0.7-2.8 MPa)<br />
Material is 2000 poise (200,000 cps) non-thixotropic acrylic latex sealant. 5 gal (4.2 l) pails,<br />
one manual gun, 25 ft x 3/8 in (7.6 m x 9.5 mm) I.D. hose, 1/4 in (6.3 mm) bead. The part is<br />
6 in (152 mm) diameter. Need to do 3 parts per minute. Need swivel at the gun.<br />
• 6 in (152 mm) diameter to circumference - ∏D or 3.14 x 6 in (152 mm) = 18.84 in (479 mm) (total) per part.<br />
• 18.84 in (479 mm) x 3 (3 parts) = 57 in (1448 mm) of bead per minute<br />
• Flow rate (gpm/lpm) = Area bead x Length bead = 0.049 in 2 (∏r 2 ) x 57 in (1448mm) = 2.77 in 3 =<br />
0.01 gpm (231 in 3 = 1 gal)<br />
∆P = (0.0273) (0.01) (2000) (25) = 13.65 = 689 PSI<br />
(.375) 4 .0198<br />
Nozzle ∆P = 300<br />
Ultra-Lite 6000 Flow Gun ∆P = 400<br />
Fittings & Swivel ∆P = 400<br />
∆P Total = ∆P Nozzle +∆P Gun +∆P Swivel + ∆P Hose<br />
= (300 + 400 + 400 + 689) = 1789 psi (123.4 bar, 12.34 MPa)<br />
From the chart, we selected a 46:1 President with a 3 in single-post ram. Since the material is an acrylic,<br />
use SST wetted parts or part no. 231-169. A 46:1 pump at 90 psi of air will produce 4140 psi (46 x 90 psi)<br />
of pressure. Calculated pressure loss is only 1789 psi, so this selection will be fine for the application.<br />
7
Change language