Graco 308550ZAC User Manual download pdf (Page 35)

308550 35

Performance Chart

100

120

0 30 60 90 120 150

TEST CONDITIONS

Pump tested in water with PTFE diaphragm and inlet

submerged.

(114)

(0.28, 2.8)

(0.14, 1.4)

(0.42, 4.2)

KEY FLUID PRESSURE AND FLOW

SCFM AIR CONSUMPTION

Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head:

To supply 60 gpm (227 liters) fluid flow (horizontal scale) at 40 psi (0.28 MPa, 2.8 bar) discharge head pressure (vertical scale) re-

quires approximately 60 scfm (1.68 m

#/min) air consumption at 70 psi (0.48 MPa, 4.8 bar) inlet air pressure.

FLUID FLOW GPM (lpm)

psi

(MPa, bar)

feet

(meters)

280

(85.3)

240

(73.2)

200

(61.0)

160

(48.8)

120

(36.6)

(24.4)

(12.2)

(0.56, 5.6)

(0.7, 7)

(0.8, 8)

INLET AIR PRESSURES

A 120 psi air (0.8 MPa, 8 bar)

B 100 psi air (0.7 MPa, 7 bar)

C 70 psi air (0.48 MPa, 4.8 bar)

D 40 psi air (0.28 MPa, 2.8 bar)

AIR CONSUMPTION

E 25 scfm (0.70 m#/min)

F 50 scfm (1.40 m#/min)

G 75 scfm (2.10 m#/min)

H 100 scfm (2.80 m#/min)

(227) (341) (568)(454)

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Graco 308550ZAC User Manual Page 35

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