Why would a transfer hose swirl around when lp-gas is being introduced into a container?

Why would a transfer hose swirl around when lp-gas is being introduced into a container?

• A. Hose end valve is closed
• B. Pump is not primed
• C. Hose end valve is open
• D. Transfer line is too short

Answer: (C)

When lp-gas is being moved into a container, gas is flowing through the transfer hose. That moving gas pushes on the hose, and a flexible hose will tend to whip or swirl if it isn’t secured. If the hose end valve is open, gas can flow freely and the flow itself drives that swirling motion. If the valve were closed, there would be little or no flow, so the hose wouldn’t swirl as much. The other factors listed don’t really apply to this situation: LP-gas transfer doesn’t rely on a pump in this setup, and a shorter transfer line by itself doesn’t cause the hose to swirl—the movement comes from the flowing gas.

When lp-gas is being moved into a container, gas is flowing through the transfer hose. That moving gas pushes on the hose, and a flexible hose will tend to whip or swirl if it isn’t secured. If the hose end valve is open, gas can flow freely and the flow itself drives that swirling motion. If the valve were closed, there would be little or no flow, so the hose wouldn’t swirl as much. The other factors listed don’t really apply to this situation: LP-gas transfer doesn’t rely on a pump in this setup, and a shorter transfer line by itself doesn’t cause the hose to swirl—the movement comes from the flowing gas.