Material: plastic. This ball valve has a unique feature of height adjustment arm. In order for the ball value to function correctly it requires a ball float. This valve comes with easy operating adjustable arm and a pivoting thread for the ball float. This ball valve is ideal to be used and fitted using working pressure of 0.2-6 bar. Easy to install. Flow rate (2 bar): 0.158 L/S. Thread size: 15mm.