To balance asymmetric weight, flow valves and pumps will often be used to feed both engines from one tank or simply transfer fuel between tanks.

The geneticist raised his head to watch Seligman twist a flow valve.

He signalled to Seligman, who leaned across and adjusted a flow valve on the drip stand.

The last thing she did was twist the handle of a big flow valve.

It can be mitigated by opening the free flow valve and holding the opening level, facing down, and breathing very carefully.

Once again, the action is to open the free flow valve, preferably before vomiting, and to inhale as carefully as possible.

There's so much disturbance I'm afraid any attempt to get at the flow valve will interrupt the magnetic shield.

Regulation of flow is done by varying pump speed or using an adjustable flow valve.

She twisted the flow valve and placed the mask over his mouth and nose.

"Check the flow valves," Scott ordered his best power man, Lieutenant Klancee.