PRIMUS Plumb-In Kit: Pressure Reducing Valve (PRV)

Unlock the full potential of your WPM PRIMUS espresso machine with our official Plumb-In Kit. This Pressure Reducing Valve (PRV) allows you to transition from manual tank fills to a seamless, direct-water connection, providing a continuous water supply for high-volume brewing and ultimate convenience. ⚠️ Critical Installation Requirement To protect the precision components of the PRIMUS, this valve must be installed downstream of a high-quality water filtration system. * DO NOT connect this valve directly to the mains water supply. Why? Unfiltered tap water contains minerals and sediment that cause scale build-up and internal blockages, which can compromise pressure stability and significantly shorten the lifespan of your espresso machine. Technical Specifications Operating Pressure: -0.3 to 12 bar (-4.4 to 174 psi) Flow Rate: 0 – 2.8 L/min Water Temp Range: 2°C – 45°C Connection Type: DN8 compatible Installation Guide