EMCO Multi-Stage Depressurizing Unit for Liquid

By reducing the pressure in stages the damaging cavitation is avoided. This secures long life time of the equipment. Cavitation occurs during pressure reduction when the pressure in the Vena Contracta (the bore of the plate) is lower than the vapour pressure. Cavitation generates noise, erosion and vibrations. The calculation is based on ISO 5167, and a critical flow factor or cavitation factor for determining allowed pressure loss across each stage. Each of the pressure reducing stages are connected and supplied as a unit.

The EMCO single hole multi stage pressure reducing units (SDP-L) are used to prevent critical/high pressure drops in continuous liquid flow pipe lines. EMCO multi hole multi stage pressure reducing units (MDP-L) are used to prevent critical/high pressure drops in continuous liquid flow pipe lines. Multi hole plates can handle higher pressure drops than single hole plates