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Wednesday, April 17th 2013, 1:51pm
Monday, April 15th 2013, 11:21pm
Monday, April 15th 2013, 10:58pm
Monday, April 15th 2013, 9:05pm
by pass1
Monday, April 15th 2013, 6:09pm
Ha Ha! My 1975 Camaro had a carburetor too!Flow controls allow a system to be "optimized' in almost the same way your grandfather tuned the carburetor on his truck. With the valve open, you throttle down the flow control until you notice it is beginning to restrict the flow. Then you back out the control a half-turn. What this does is minimize the movement of the valve diaphragm. The less a valve diaphragm flexes, the longer it will last, and the more reliably it will perform.No, it does not add pressure to the spring. In fact it actually does the opposite. The flow control actually makes contact directly to the diaphragm, not through the spring. A flow control only limits how far a diaphragm can open, thus controlling how much water can can flow through the valve. There is a case that could be made that if using a flow control, the diaphragm would have less distance to travel in order to close. However, the diaphragm will only open as much as the flow dictates. So i guess i fail to see how a flow control would help.
This especially matters on systems with low flows. On a low-flow system, you might even leave the flow controls in a position where they are slightly restricting flow, because (for reasons involving hydraulics) valves so adjusted have more force helping them to close.
Monday, April 15th 2013, 5:16pm
Monday, April 15th 2013, 4:58pm
by Wet_Boots
Flow controls allow a system to be "optimized' in almost the same way your grandfather tuned the carburetor on his truck. With the valve open, you throttle down the flow control until you notice it is beginning to restrict the flow. Then you back out the control a half-turn. What this does is minimize the movement of the valve diaphragm. The less a valve diaphragm flexes, the longer it will last, and the more reliably it will perform.No, it does not add pressure to the spring. In fact it actually does the opposite. The flow control actually makes contact directly to the diaphragm, not through the spring. A flow control only limits how far a diaphragm can open, thus controlling how much water can can flow through the valve. There is a case that could be made that if using a flow control, the diaphragm would have less distance to travel in order to close. However, the diaphragm will only open as much as the flow dictates. So i guess i fail to see how a flow control would help.
Monday, April 15th 2013, 3:56pm
Monday, April 15th 2013, 3:41pm
Monday, April 15th 2013, 3:06pm