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« on: September 08, 2016, 09:36:01 PM »
This is a topic I know well.
I will make it as simple as possible.
"A brass gate valve is a good choice for throttling fluids. The brass is very resistant to corrosion. The gate valve allows for fine adjustment of flow. less acceptable to vibration. Good choice for throttling fluids.
"A ball valve is not made for throttling fluids. A ball valve is only meant to be in the open or closed position" with only a 90° turn on the handle you could lose flow very quickly due to a bump vibration or someone accidentally just being too close and bumping it but not realizing. Most of all the ball valve is not intended for throttling fluids. Ball valves are intended to be open or closed.
Be sure not to get a regular outside tap valve. Although you may think they look fairly similar they're not similar in design. Under conditions of high flow the rubber gasket could fold over and close off your flow.