
R73G/R General Purpose Regulators
Littleton, CO USA Phone 303-794-2611 www.norgren.com
ALE-4-9
All Dimensions in Inches (mm)
Technical Data
Fluid: Compressed air
Maximum pressure: 300 psig (20 bar)
Operating temperature*: -30° to 175°F (-34° to 80°C)
*Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C).
Typical flow with 150 psig (10 bar) inlet pressure, 90 psig (6.3 bar) set pressure
and 15 psig (1 bar) droop from from set: 144 scfm (68 dm
3
/s)
Gauge ports:
1⁄4 PTF with PTF main ports
Rc1/4 with ISO Rc main ports
Rc1/8 with ISO G main ports
Materials
Body: Aluminum
Bonnet: Aluminum or Zinc
Valve: Brass
Elastomers: Nitrile
Bottom plug: Acetal
Typical Performance Characteristics
0 20 40 60 80 100 dm
3
/s
AIR FLOW
0 40 80 120 160 200 scfm
OUTLET PRESSURE
8
6
4
2
0
bar
100
80
60
40
20
0
psig
PORT SIZE: 3/8"
INLET PRESSURE: 150 psig (10 bar)
RANGE: 5 to 150 psig (0.3 to 10 bar)
FLOW CHARACTERISTICS
01020304050dm
3
/s
AIR FLOW
0 20 40 60 80 100 scfm
OUTLET PRESSURE
6
4
2
0
bar
100
80
60
40
20
0
psig
PORT SIZE: 3/8"
INLET PRESSURE: 100 psig (7 bar)
RANGE: 5 to 150 psig (0.3 to 10 bar)
FLOW CHARACTERISTICS
2.68 (68)
2.45 (62)
1.22 (31)
2.20 (56)
1.54 (39)3.80 (96)
1.22
(31)
4.04 (103)
0.45 (12)
2.00 (50)
Panel mounting hole diameter: 1.89" (48 mm)
Panel thickness: 0.06" to 0.25" (2 to 6 mm)
Service kit includes diaphragm assembly, valve assembly,
valve spring, bottom plug o-ring.
Service Kits
Item Type Part Number
Service kit Relieving 4381-600
Non-relieving 4381-601
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