The valves come in various types: The 5207065 valve this type is an adjustable valve with a remote-controlled air and abrasive cut-off system. The S898 valve on the other hand is a 1" 1/4 manual valve. The S812 valve has ball value of 1/2". The S101 air pressure regulator valve also comes with mano pressure regulator with 6000 litres/mn airflow capacity.