When using Teflon tape, wrap around pipe three full times. As a general rule of thumb, hand-tighten the nipple into the valve, then tighten 1/2 turn more using a wrench. When tightening the nipple, do not use the solenoid or flow control as a grip handle.
*Note: Do not use Teflon tape and Teflon paste together. The Teflon tape will increase the overall size of the threads and the Teflon paste will act as a lubricant. This can result in the installer unintentionally screwing the male adapter into the valve too deep which can split the valve body.