The Vanair Viper G70 is a 70 CFM at 125 PSI belt-driven deck-mount rotary-screw air compressor powered by a 25 hp Honda iGX800 EFI gas engine. The balanced flow-and-pressure middle specification in Vanair's gas Viper range, built for utility-fleet and infrastructure crews that need continuous-duty air on the truck without a tow-behind.
- 70 CFM at 125 PSI continuous output from Vanair's encapsulated rotary-screw airend sealed against contamination, warranted for life with prescribed maintenance
- 25 hp Honda iGX800 EFI gas engine electronic fuel injection for cold-weather starting, uniform RPM under load, and lower fuel consumption than carbureted compressors
- Compact 440 lb deck-mount package, 39 x 21 x 30 in. fits AboveDeck or skid mounting on Class 4-7 service trucks and mechanic bodies
- 10 gal fuel tank for extended jobsite runtime; 1/2 in. NPT air outlet; onboard sensors auto-unload on startup and shut down on high temp, over-pressure, or low oil pressure
- Variant configurations: base GV3H-B70, cold-weather GV3H-B70C (battery blanket plus fuel-and-oil heaters), GV3H-B70CR (cold-weather plus remote start), GV3H-B70R (remote start), GV3H-B70W (wheel cart)
- 125 PSI sits between the high-pressure 150 PSI G60 and the higher-flow 100 PSI G80 the balanced specification when the operator needs both flow and pressure
- Applications: utility-fleet 90 lb breakers, 4-inch piercing tools, post drivers, bridge-maintenance, pipeline rock drills, irrigation blow-out, monument engraving, sand-blasting
- Crowder Supply stocks contractor air hose, hose reels, hose whips, line oilers, pressure regulators, aftercoolers, and Vanair service parts; encapsulated airend warranted for life

