4
AIR
PREPARATION
PRODUCTS
APP-16
For further information www.norgren.com
V74Sect
1
4
2
3
"T" Installation (Type V07, V74, 16-001)
Relief Flow
1
4
3
2
Relief Flow
Inline Installation (Type V72 Only)
* Relief valve 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 relief pressure range
are available only with the T-bar adjustment;
therefore substitute T at the 7th position and
S at the 9th position.
Note: for Excelon 73 combinations use V74G.
V72G
V74G
Options selector V 7
H
G-
HHH
-N
HH
Series Substitute
72 2
74 4
Port size Substitute
1/4" (72) 2
3/8" (72, 74) 3
1/2" (74) 4
3/4" (74) 6
Threads Substitute
PTF A
ISO G G
Ordering information
Models listed include PTF threads, knob adjustment, and a 5 to 150 psig (0.3 to 10 bar) relief pressure adjustment range, with gauge.*
Gauge Substitute
With G
Without N
Relief 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 to17 bar) S
Adjustment Substitute
Knob K
T-bar T
ISO Symbol
Size Model Service kit
1/4 V72G-2AK-NMN 4209-03
3/8 V74G-3AK-NMN 4384-700
1/2 V74G-4AK-NMN 4384-700
3/4 V74G-6AK-NMN 4384-700
V72G
V74G
Excelon
®
modular system
V72G, V74G Pressure Relief Valves
Excelon
®
design allows in-line installation or
modular installation with other Excelon
®
products
Push to lock adjusting knob with tamper
resistant accessory
Helps protect air operated equipment from over
pressure by retarding excessive pressure build up
Fluid:
Compressed air, neutral gases
NOTE: Contact technical support
for use with other media.
Maximum pressure:
300 psig (20 bar)
Operating temperature*:
(72) -30° to 150°F (-34° to 65°C)
(74) -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).
V72
Gauge ports:
1/8" PTF with PTF main ports
1/8" ISO Rc with ISO G main ports
Exhaust port:
1/4" PTF with PTF main ports
1/4" ISO Rc with ISO G main ports
Materials
V72G
Body: zinc body
Bonnet: acetal
Elastomers: chloroprene
Bottom plug: acetal
V74G
Body & bonnet: aluminum
Elastomers: chloroprene
Bottom plug: acetal
Technical data
GrSym,RelVlv
