Norgren R73R User Manual
See Section ALE-24 for Accessories
Littleton, CO USA Phone 303-794-2611 www.norgren.com
R73G/R
● Excelon design allows in-line or modular installation
● Full flow gauge ports
● Balanced valve design minimizes effect of variation
in the inlet pressure on the outlet pressure
● Standard relieving models allow reduction of
downstream pressure when the system is
dead-ended
● Optional reverse flow models available for use
downstream of directional control valves
● Modular installations with Excelon 72, 73,and 74
series can be made to suit particular applications
Excelon 73 Pressure Regulator
1/4" 3/8",1/2" Por t Sizes
ALE-4-8
ISO Symbols
Relieving Non relieving
Alternative Models
Ordering Information.
Models listed include uni-directional flow, PTF threads, knob adjustment, relieving diaphragm, 5 to 150 psig (0.3 to
10 bar) outlet pressure adjustment range*, with gauge.
R 7 3
-
★ ★ ★
-
★★ ★ ★
Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G
Adjustment Substitute
Knob K
T-bar T
Port Size Model Flow†scfm (dm3/s) Weight lb (kg)
1/4" R73G-2AK-RMG 91 (43) 1.36 (0.6)
3/8" R73G-3AK-RMG 144 (68) 1.36 (0.6)
1/2" R73G-4AK-RMG 144 (68) 1.36 (0.6)
Diaphragm Substitute
Relieving R
Non relieving N
Gauge Substitute
With G
Without N
Outlet Pressure Adjustment Range* Substitute
5 to 60 psig (0.3 to 4 bar) F
5 to 150 psig (0.3 to 10 bar) M
10 to 250 psig (0.7 to 17 bar) S
Port Size Substitute
1/4" 2
3/8" 3
1/2" 4
† Typical flow with 150 psig (10 bar) inlet pressure, 90 psig (6.3 bar) set pressure and 15 psig (1 bar) droop from set.
Flow Type Substitute
Uni-directional G
Reverse R
* Outlet pressure can be adjusted to pressures in excess of, and less than, those specified.
Do not use these units to control pressures outside of the specified ranges.
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
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
1.22 (31)
2.68 (68)
2.45 (62)
bar
psig
8
100
6
80
60
4
OUTLET PRESSURE
40
2
20
0
0
0 40 80 120 160 200 scfm
0 20 40 60 80 100 dm3/s
PORT SIZE: 3/8"
bar
INLET PRESSURE: 100 psig (7 bar)
psig
RANGE: 5 to 150 psig (0.3 to 10 bar)
100
6
80
60
4
OUTLET PRESSURE
40
2
20
FLOW CHARACTERISTICS
INLET PRESSURE: 150 psig (10 bar)
RANGE: 5 to 150 psig (0.3 to 10 bar)
AIR FLOW
FLOW CHARACTERISTICS
PORT SIZE: 3/8"
2.20 (56)
2.00 (50)
1.54 (39)3.80 (96)
(31)
1.22
0.45 (12)
4.04 (103)
0
0
0 20 40 60 80 100 scfm
01020304050dm
AIR FLOW
3
/s
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