Norgren B74G Datasheet
See Section ALE-24 for Accessories
Littleton, CO USA Phone 303-794-2611 www.norgren.com
B74G
● EXCELON design allows in-line or modular
installation
● Quick release bayonet bowl
● Highly visible, prismatic liquid level indicator lens
● Full flow gauge ports
● Balanced valve design minimizes effect of variation
in the inlet pressure on the outlet pressure
● Modular installations with EXCELON 72, 73, and 74
series can be made to suit particular applications
Excelon®74 Series Filter/Regulator
3/8",1/2",3/4" Port Si zes
ALE-12-8
Ordering Information. Models listed include PTF threads, knob adjustment, automatic drain, metal bowl with liquid level indicator, 40 µm element,
relieving diaphragm, 5 to 150 psig (0.3 to 10 bar) outlet pressure adjustment range*, with gauge.
† 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.
Main Port Size Model Number Flow†scfm (dm3/s) Weight lb (kg)
3/8" B74G-3AK-AD3-RMG 163 (77) 2.62 (1.19)
1/2" B74G-4AK-AD3-RMG 212 (100) 2.59 (1.17)
3/4" B74G-6AK-AD3-RMG 212 (100) 2.55 (1.16)
Alternative Models
B 7 4-G
★ ★
-
★★ ★ ★
Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G
Adjustment Substitute
Knob K
T-bar T
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
Bowl Substitute
Metal with liquid level indicator D
Transparent with guard P
Element Substitute
5 µm 1
25 µm 2
40 µm 3
-
★★ ★
* Outlet pressure can be adjusted to pressures in e xcess of, and less than, those
specified. Do not use these units to control pressures outside of the specified
ranges.
** Units with 250 psig (17 bar) outlet pressure range are available only with the Tbar adjustment; therefore substitute T at the 7th digit and Sat the 12th position.
Drain Substitute
Automatic A
Manual, 1/4 turn Q
Port Size Substitute
3/8" 3
1/2" 4
3/4" 6
B74G Filter/Regulators
Littleton, CO USA Phone 303-794-2611 www.norgren.com
ALE-12-9
All Dimensions in Inches (mm)
Technical Data
Fluid: Compressed air
Maximum pressure:
Transparent bowl: 150 psig (10 bar)
Metal bowl: 250 psig (17 bar)
Operating temperature*:
Transparent bowl: -30° to 125°F (-34° to 50°C)
Metal bowl: -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).
Particle removal: 5, 25 or 40 µm filter element
Air quality: Within ISO 8573-1, Class 3 and Class 5 (particulates)
Typical flow with 150 psig (10 bar) inlet pressure, 6.3 (90 psig) set pressure and a
droop of 15 psig (1 bar) from set: 212 scfm (100 dm
3
/s)
Manual drain connection:Will fit 1/8-27 and 1/8-28 pipe thread
Automatic drain connection:Will fit 1/8-27 and 1/8-28 pipe thread
Automatic drain operating conditions (float operated):
Bowl pressure required to close drain: Greater than 5 psig (0.3 bar)
Bowl pressure required to open drain: Less than 3 psig (0.2 bar)
Minimum air flow required to close drain: 2 scfm (1 dm
3
/s)
Manual operation: Depress pin inside drain outlet to drain bowl
Nominal bowl size: 7 fluid ounce(0.2 liter )
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
Valve: Brass
Bowl
Transparent: Polycarbonate with steel bowl guard
Metal: Aluminum
Metal bowl liquid level indicator lens:Transparent nylon
Element: Sintered plastic
Elastomers: Neoprene and Nitrile
An automatic drain is a two-way valve, which will close when the system is
pressurized.The drain opens when the float rises due to accumulated liquid
and on depressurization.
Automatic Drain, Non Relieving Manual Drain, Non Relieving
ISO Symbols
Automatic Drain, Relieving
Manual Drain, Relieving
Typical Performance Characteristics
Panel mounting hole diameter: 2.06" (52 mm)
Panel thickness:0.06" to 0.25" (2 to 6 mm)
Service kit includes diaphragm assembly, valve assembly, valve
spring, louvre o-ring, bowl o-ring, drain seal.
Service Kits
Item Type Part Number
Service kit Relieving 4383-700
Non relieving 4383-701
Replacement elements
5 µm 4338-04
25 µm 4338-07
40 µm 4338-05
Liquid level lens kit Prismatic 4380-050
Replacement drains
Automatic (1/8 NPT outlet) 3000-10
Manual quarter turn 619-50
** Minimum clearance to remove bowl.
3.15 (80)
psig
bar g
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
psig
bar g
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
FLOW CHARACTERISTICS
PORT SIZE: 1/2",
INLET PRESSURE: 150 psig (10 bar g)
RANGE: 5 to 150 psig (0.3 to 10 bar)
AIR FLOW
FLOW CHARACTERISTICS
PORT SIZE: 1/2",
INLET PRESSURE: 100 psig (7 bar g)
RANGE: 5 to 150 psig (0.3 to 10 bar)
AIR FLOW
ELEMENT: 40 µm
ELEMENT: 40 µm
2.89 (74)2.20 (56)
1.45 (37)
2.00 (50)
9.06 (230)**
Automatic Drain
1.24 (31)
1.69 (43)
4.98 (127)
5.95 (151)
6.35 (161)
9.69 (246)**
6.95 (177)
Manual Drain
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