Pressure relief/sustaining valve Mod. WR/AM

The Pietro Fiorentini direct acting upstream pressure relief/sustaining valve Mod. WR/AM automatically maintains and sustains a minimum pre-set upstream pressure, discharging any excess downstream, regardless of variations in demand and downstream pressure fluctuations.

• Flanged version DN 50-150.
• Upstream pressure balanced, to stabilize and maintain the upstream pressure to a minimum pre-set (and adjustable) value regardless of demand and downstream pressure variations.
• Ductile cast iron for body and cap, piston in stainless steel, seat in stainless steel, guiding bush in stainless steel as well as bolts and nuts.
• Innovative self cleaning piston technology to improve performances reducing maintenance operations.
• Mobile block composed of three components in gun metal/stainless steel obtained by CNC to ensure the maximum accuracy and sliding precision, this is to avoid friction and unexpected leakage.
• Upstream/downstream pressure outlets for gauges.
• Large expansion chamber to reduce noise and to provide an excellent resistance to cavitation.
• Epoxy powder applied using FBT technology.