Norgren V74G Series Datasheets - Manual

Littleton, CO USA Phone 303-794-2611 www.norgren.com
V74G
● Excelon design allows in-line or modular installation
● Push to lock adjusting knob with tamper resistant
accessory
● Easily disassembled for servicing without removal
from air line
● Helps protect air operated equipment from over
pressure by retarding excessive pressure build up
● Modular installations with Excelon 72, 73, and 74
series can be made to suit particular applications
74 Series Pressure Relief Valve
3/8", 1/2", 3/4" Port Sizes
ALE-14-6
See Section ALE-24 for Accessories
Alternative Models
Ordering Information. Models listed include PTF threads, knob adjustment, and a 5 to 150 psig (0.3 to 10 bar) relief pressure adjustment range*.
V 7 4 - G ★ ★ - ★ ★ N ★
Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G
Adjustment Substitute
Knob K
T-bar T
Port Size Model Weight lb (kg)
3/8" V74G-3AK-NMN 0.69 (1.53)
1/2" V74G-4AK-NMN 0.68 (1.50)
3/4" V74G-6AK-NMN 0.67 (1.47)
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 to 17 bar)** S
* 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 (17 bar) relief pressure range are available
only with the T-bar adjustment; therefore substitute T at the 7th
position and S at the 9th position.
Port Size Substitute
3/8" 3
1/2" 4
3/4" 6
ISO Symbol