Fast acting anti-water hammer valve Mod. H-PVS

The Pietro Fiorentini fast acting, surge prevention, pressure relief valve Mod. H-PVS has been designed to avoid the devastating effects of water hammers in pipeline networks. The purpose is actually to prevent pressure from rising above a pre-set value, thanks to its capability of discharging the excessive volume of water directly into the atmosphere.

• Solid and compact design suitable for treated and raw water and to reduce blow-back.
• Negligible inertia of the internal mobile parts ensuring the absence of friction and long lasting performances.
• Perfect water tightness and excellent resistance to cavitation and harsh working conditions due to the floating obturator technology and to the use of special gaskets and high resistant stainless steel grades.
• Fast and accurate response without any hysteresis effect thanks to high frequency annealed springs.
• Reduced overpressure thanks to a wide selection of spring and ranges in pressure.
• Water vertical discharge deflector.