Graco 309924H User Manual
Instructions - Parts List
Air Regulators
Important Safety Instructions.
Read all warnings and instructions in this manual.
Save these instructions.
Part No. Description Inlet Outlets Handle
234389 Air Regulator with gauge,
self relieving
234434 Air Regulator with gauge,
self relieving
234390 Mini Air Regulator with
gauge
24H419 Mini Air Regulator with
gauge
24H420 Mini Air Regulator with
gauge
234391 Air Regulator with
2 regulated outlets,
1 unregulated outlet
234392 Air Regulator with
3 regulated outlets
234393 Air Regulator 234391 with
gauge and shutoff valve,
1 regulated outlet,
1 unregulated outlet
234394 Air Regulator 234392 with
gauge and shutoff valve,
2 regulated outlets
1/4 in.
npt(m)
1/4 in.
npt(m)
1/4 in.
npt(f)
1/4 in.
BSP(f)
1/4 in.
npt(f)
3/8 in.
npt(f)
3/8 in.
npt(f)
3/8 in.
npt(m)
3/8 in.
npt(m)
1/4 in.
npt(f)
1/4 in.
npt(f)
1/4 in.
npt(f)
3/8 in.
BSP(f)
3/8 in.
npt(f)
1/4 in.
npt(f)
1/4 in.
npt(f)
1/4 in.
npt(f)
1/4 in.
npt(f)
knob 160(1.1, 11) 22 CFM
knob 160(1.1, 11) 35 CFM
knob 160(1.1, 11) 22 CFM
Knob 150(1.0, 10) 22 CFM
Knob 150(1.0, 10) 22 CFM
tee 175(1.2, 12) 50 CFM
tee 175(1.2, 12) 50 CFM
tee 160(1.1, 11) 50 CFM
tee 160(1.1, 11) 50 CFM
Maximum
Inlet
Pressure
psi (MPa, bar)
309924H
ENG
Maximum CFM
at 50 psi (.34
MPa, 3.4 bar
at 100 psi (0.7
MPa, 7 bar
Installation
Installation
Before installing air line components, blow out the pipe
line to remove debris. Be sure air to the regulator is
clean. Erratic operation or loss of regulation is usually
Use pipe compound or tape sparingly and only on male
threads. Locate the regulator as close as possible to the
equipment it serves.
caused by dirt in the regulator.
Install a main air shutoff valve upstream from the air
controls to isolate them for service.
Shop Air Piping Layout
NOTE:
• Main Air Line stand pipe should not be smaller than compressor outlet size.
• A minimum of 25 ft (7.62 m) from compressor to first filter outlet is required to cool air [50 ft. (15.24 m) optimum].
S
l
o
Main air line
3/4 in. (19 mm) minimum
1-1/4 in. (32 mm) optimum
1/2 in.
(13 mm)
drops
p
e
s
R
e
c
o
m
5
Air control
unit or air
filter
m
0
f
t
(
1
5
d
o
w
n
a
n
d
a
e
n
d
.
2
4
m
w
a
e
d
)
g
y
a
.
4
i
n
.
(
1
1
7
l
v
a
m
m
n
i
z
e
)
d
r
d
p
o
p
i
i
p
e
.
n
Membrane or
desiccant air
drying system
Compressor
Flexible hose
between compressor
and stand pipe
Coalescer
Main air
shutoff valve
1
5
-
2
0
f
t
(
4
,
6
Ball valve
Drain leg
Air filter
-
6
,
1
m
)
Drain valve
2 309924H
Compressor Main Air Line
HP CFM Length ft (m) Size in. (mm)
1-1/2 - 2 6 - 9 any 3/4 (19)
3 - 5 12 - 20
5 - 10 20 - 40
10 - 15 40 - 60
Inlet
Pressure
Air Hose ID 1/4 in. (6.4 mm)
40 (276, 2.8) 6 (41, .4)
50 (345, 3.4) 7.5 (52, .5)
psi (kPa, bar)
3
SCFM (ft
/min)
Air Hose ID 5/16 in. (7.9 mm)
psi (kPa, bar)
3
SCFM (ft
/min)
60 (414, 4.1) 9 (62, .6)
70 (483, 4.8) 10.75 (74, .7)2214.5 (100, 1)1617 (117, 1.2)1419.5 (134, 1.3)1322.5 (155, 1.6)1234 (234, 2.3)
80 (552, 5.5) 12.25 (84, .8)2516.5 (114,1.1)1819.5 (134, 1.3)1622.5 (155, 1.6)1525.5 (176, 1.8)1437 (255, 2.6)
90 (621, 6.2) 14 (97, 1)2818.75 (129, 1.3)2022 (152, 1.5)1725.25 (172, 1.7)1629 (200, 2)1539.5 (169, 2.7)
40 (276, 2.8)
50 (345, 3.4)
60 (414, 4.1)
70 (483, 4.8)
80 (552, 5.5)
90 (621, 6.2)
Minimum Pipe Size Recommendations
Up to 200 (61) 3/4 (19)
Over 200 (61) 1 (25.4)
Up to 100 (30.5) 3/4 (19)
Over100-200 (30.5-61) 1 (25.4)
Over 200 (61) 1-1/4 (31.8)
Up to 100 (30.5) 3/4 (19)
Over100-200 (30.5-61) 1-1/4 (31.8)
Over 200 (61) 1-1/2 (38.1)
Air Pressure Drop Through Hose, by Hose Length and ID
Temperature = 68° F
4 ft
(1.22 m)
14
17
20
2.25 (16, .2)
15
3 (21, .2)
19
3.75 (26, .3)
22
4.5(31, .3)
26
5.5 (38, .4)
30
6.5 (45, .4)
34
10 ft
(3.05 m)
8 (55, .6)
10
10 (69, .7)
12
12.5 (86, .9)1414.5 (100, .1)1216.75 (115,1.2)1119 (131, 1.3)1131 (214, 2.1)
2.75 (19, .2)
10
3.5 (24, .2)
12
4.5 (31, .3)
15
5.25 (36, .4)
17
6.25 (43, .4)
19
7.5 (52, .5)
22
15 ft
(4.6 m)
9.5 (66, .7)
9
12 (83, .8)
11
3.25 (22, .2)
9
4 (28, .3)
11
5 (34, .3)
13
6 (41, .4)
15
7 (48, .5)
17
8.5 (59, .6)
19
(6.1 m)
11 (76, .8)
14 (97, 1)
3.5 (24, .2)
4.5 (31, .3)
5.5 (38, .4)
6.75 (47, .5)
8 (55, .6)
9.5 (66, .7)
20 ft
8
10
8
10
11
13
15
17
Installation
25 ft
(7.62 m)
12.75 (88, 0.9)824 (165, 1.7)
16 (110, 1.1)928 (193, 1.9)
4 (28, .3)
8
5 (34, .3)
9
6 (41, .4)
11
7.25 (50, .5)
12
8.75 (60, .6)
14
10.5 (72, .7)
16
50 ft
(15.24 m)
8
9
10
11
12
12
8.5 (59, .6)
8
10 (69, .7)
9
11.5 (79, .8)
10
13 (90, .9)
12
14.5 (100, 1)
13
16 (110, 1.1)
14
309924H 3
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