AIR
PREPARATION
PRODUCTS
4
APP-11
For further information www.norgren.com
Excelon
®
modular system
R72G, R73G, R74G Pressure regulators
R72G R73G R74G
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.
ISO Symbol Port Size Model Flow* scfm (dm3/s) Weight lb (kg)
1/4" R72G-2AK-RMG 70 (33) 0.79 (0.36)
1/4" R73G-2AK-RMG 91 (43) 1.36 (0.6)
3/8" R73G-3AK-RMG 144 (68) 1.36 (0.6)
3/8" R74G-3AK-RMG 208 (98) 1.80 (0.82)
1/2" R74G-4AK-RMG 220 (105) 1.77 (0.80)
3/4" R74G-6AK-RMG 220 (105) 1.73 (0.78)
† Typical flow with 150 psig (10 bar) inlet pressure, 90 psig (6.3 bar) set pressure and a 15 psig (1 bar) droop from set.
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
Fluid:
Compressed air, neutral gases
NOTE: Contact technical support
for use with other media.
Maximum pressure:
300 psig (20 bar)
Operating temperature*:
-30° to 175°F (-34° to 80°C)
(72) -30° to 150°F
*Air supply must be dry enough
to avoid ice formation at
temperatures below 35°F (2°C).
Materials
R72G
Body: zinc
Bonnet: acetal (Zinc on
250 psi model)
Elastomers: nitrile
Bottom plug: acetal
Valve: polypropylene and TPV
R73G, R74G
Body: aluminum
Bonnet: (73) zinc, (74) aluminum
Elastomers: nitrile
Bottom plug: acetal
Valve: polypropylene and TPV
Technical data
*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.
**Units with 250 psig outlet pressure range are available only with the T-bar adjustment, substitute T at the 7th position and S at the 9th position.
Options selector R7H G-HHH-RHH
Series Substitute
72 2
73 3
74 4
Port size Substitute
1/4" (72, 73) 2
3/8" (72, 73, 74) 3
1/2" (73, 74) 4
3/4" (74) 6
Threads Substitute
PTF A
ISO G parallel G
Gauge Substitute
With G
Without N
Outlet press adj range* Substitute
5 to 30 psig (0.4 to 2 bar) (72) C
5 to 60 psig (0.4 to 4 bar) F
5 to 150 psig (0.4 to 10 bar) M
10 to 250 psig (0.6 to 17 bar)** S
Adjustment Substitute
Knob K
T-bar T
R7*G Relieving
