2½"/6.4 cm field adjustable reg-u-matic pressure regulating valve. Used as a zone control valve for in-line application to regulate high-pressure sprinkler, standpipe and combined fire protection systems. Indicator bonnet shows whether valve is opened or closed. Adjustable indicating scale permits easy field setting. Used to regulate inlet pressure to 400 psi/27.5bars. Regularly furnished: brass valve with non-rising stem, internal parts of brass and stainless steel, red alloy handwheel, female NPT inlet and outlet with monitor switch adapter.