Model 820-PP

• Robust structure, piston actuated – High pressure service
• Line pressure driven – Independent operation
• Elegant simplicity
  • Most cost effective
  • Simple to maintain
  • Minimal external accessories
• Built-in check feature – Replacing line sized check valve
• In-line serviceable – Easy maintenance
• Double chamber – Moderated valve reaction
• Flexible design – Easy addition of features
• Semi-straight flow – Non-turbulent flow
• Stainless Steel raised seat – Cavitation damage resistant
• Obstacle free, full bore – Uncompromising reliability
• V-Port Throttling Plug – Low flow stability

There are two major applications for the Model 820-PP High Pressure, Proportional Pressure Reducing Valve:

• Long downhill lines.
• Systems A1 and A2 prevent the downhill line from exceeding its pressure rating.
• High differential pressure systems.
• System B reduces cavitation damage and noise level by distributing the load of the high differential pressure.
• System C illustrates protection of a circulation valve from high differential pressure and resultant severe cavitation.
• System D shows protection of a level control valve from high differential pressure.

There are two major applications for the Model 820-PP High Pressure, Proportional Pressure Reducing Valve:

• Long downhill lines.
• Systems A1 and A2 prevent the downhill line from exceeding its pressure rating.
• High differential pressure systems.
• System B reduces cavitation damage and noise level by distributing the load of the high differential pressure.
• System C illustrates protection of a circulation valve from high differential pressure and resultant severe cavitation.
• System D shows protection of a level control valve from high differential pressure.