Norgren V74G Series Datasheets - Manual (Page 2)

V74G Pressure Relief Valves
Littleton, CO USA Phone 303-794-2611 www.norgren.com ALE-14-7
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).
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: Aluminum and Nitrile
Elastomers: Nitrile
Bottom plug: Acetal
Typical Performance Characteristics
0 20 40 60 80 100 dm 3 /s
AIR FLOW
0 40 80 120 160 200 scfm
INLET PRESSURE
6
4
2
0
bar g
100
80
60
40
20
0
psig
PORT SIZE: 1/2"
RANGE: 5 to 150 psig (0.3 to 10 bar)
RELIEF CHARACTERISTICS
2.89 (74)
2.20 (56)
1.69 (43)
4.98 (127)
1.45 (37)
3.15 (80)
2.00 (50)
1.24 (31)
5.95 (151)
Optional
Gauge
Service Kits
Service kit includes diaphragm, bottom plug o-ring.
Item Type Part Number
Service kit Diaphragm & Seal 4384-700
Panel mounting hole diameter: 2.06" (52 mm)
Maximum panel thickness: 0.25" (6 mm)