Norgren 20AL User Manual
See Section ALE-24 for Accessories
ALE-8-4
Littleton, CO USA Phone 303-794-2611 www.norgren.com
11-400, 20AL
● Pilot regulators are used to control the outlet
pressure of a pilot operated regulator (ordered
separately)
● The pilot regulator is installed in an accessible
location in the compressed air system; pilot operated
regulator is installed at any point without regard to
accessibility
● Conventional pilot regulator provides good pressure
regulation, rapid response to changing flow
demands, and excellent stability.
● Constant bleed feature provides maximum sensitivity
to system changes
● Relief feature allows reduction of downstream
pressure when the system is dead-ended
Conventional Pilot Regulators
1/4" Port S ize
Ordering Information. Models listed are relieving with constant bleed, PTF threads, without gauge.
Port Size Model Number Range psig (bar) Weight lbs (kg)
1/4" 11-400-2G/AC103 1 to 30 (0.06 to 2) 1.98 (0.90)
1/4" 11-400-2G/AE103 1 to 60 (0.06 to 4) 2.07 (0.94)
1/4" 11-400-2G/AG103 2 to 100 (0.16 to 7) 2.2 (1.00)
1/4" 20AL-X2G/AK103 100 to 300 (7 to 20) 2.3 (1.05)
ISO Symbol
Conventional Pilot Regulator
with Pilot Operated Regulator
ALE-8-5
All Dimensions in Inches (mm)
Littleton, CO USA Phone 303-794-2611 www.norgren.com
11-400 and 20AL Pilot Regulators
Typical Performance Characteristics
Service Kits
Type Part number
11 400-20AL-X 11 400-100/20AL
Service kit includes: diaphragm assemblies, valve assembly, valve spring orings and valve seats for pilots.
Technical Data
Fluid: Compressed air filtered to 5µm
Maximum inlet pressure: 360 psig (25 bar)
Operating temperature: 0° to 175°F (-20° to 80°C) *
* Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C).
Typical flow with 100 psig (7 bar) inlet pressure, 23 psig (1.6 bar) set pressure and
1.5 psig (0.1 bar) droop from from set: 4.2 scfm (2 dm3/s)
Gauge ports: 1/8" PTF
Materials:
Body, bonnet: Zinc
Elastomers: Nitrile
g
Mounting Dimensions
(Shown with optional gauge and mounting bracket)
0.28 (7)
2.17 (55)
panel mount
hole 1.062 (27)
.20 (5) min
.40 (10) max
3.15 (80)
3.74 (95)
.63 (16)
(typ 2)
3.35 (85)
1.26 (32)
2.76 (70)
psig
bar,g
24
1.6
1.2
16
0.8
Secondary Pressure
8
0.4
0
0
0 2 4
0 1.0
FLOW CHARACTERISTICS
PORT SIZE: 1/4 "
INLET PRESSURE: 100 psig (7 bar)
RANGE: 1 to 30 psig (0.06 to 2 bar)
6 8 1
3.0 4.0 5.0 dm
2.0
Air Flow
FLOW CHARACTERISTICS
psig
bar,g
100
8
6
80
4
Secondary Pressure
40
2
0
0
0 2 4
0 1.
0 2.0
PORT SIZE: 1/4 "
INLET PRESSURE: 100 psig (7 bar)
RANGE: 2 to 100 psig (0.16 to 7 bar)
6 8 1
3.0 4.
Flow
0 5.0 dm
0 s
0 s
cfm
3
/s
cfm
3
/s
3.35 (85)
5.70 - 6.50 (145 - 165)
3.15 (80)
1.97 (50)
3.15 (80)
.55 (14)
psig
bar,g
30
2
1.5
20
1
Secondary Pressure
10
0.5
0
0
0 20 40
0 2 4
psig
bar,g
100
8
6
80
4
Secondary Pressure
40
2
0
0
0 20 40
0 2 4
REGULATION CHARACTERISTICS
PORT SIZE: 1/4 "
INLET PRESSURE: 150 psig (10 bar)
RANGE: 1 to 30 psig (0.06 to 2 bar)
Curves are 50% of recommended flow
0
120
10
80
60
6 8
Primary Pressure
REGULATION CHARACTERISTICS
PORT SIZE: 1/4 "
INLET PRESSURE: 150 psig (10 bar)
RANGE: 2 to 100 psig (0.16 to 7 bar)
Curves are 50% of recommended flow
0
120
10
80
60
6 8
Primary Pressure
1.8 scfm
1.3 scfm
0.8 scfm
0.6 scfm
0.4 scfm
140
6.0 scfm
3.9 scfm
2.7 scfm
1.3 scfm
140
psig
10 bar
1.8 scfm
psig
10 bar
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