Designed to protect hose lays from pressures beyond requirements. This valve is installed at any point in a 1 ½”/38mm discharge hose lay and will automatically reduce excess pressures via an adjustable, automatic pressure bleed off ¾”/19mm Male GHT outlet. This is designed to allow the attachment of a ¾”/19mm Myti-Flo® hose to keep the area dry. Aluminum, brass and stainless steel construction. Connections are available in NPSH, NH and QC. Other options are also possible.