Orenco automatic distributing valve assemblies are mechanically operated and sequentially redirect the pump’s flow to multiple zones in a distribution field or treatment system. Valve actuation is accomplished by a combination of pressure and flow. Automatic distributing valve assemblies allow the use of smaller horsepower pumps on large sand filters and drainfields. For example, a large community drainfield requiring 300 GPM can use a six-line valve assembly to reduce the pump flow rate requirement to only 50 GPM.

The use of high-head effluent pumps with Biotube pump vaults are required to provide pressure and meet flow requirements, and to prevent debris from fouling valve operation. An inlet ball valve, a section of clear pipe (for monitoring), and a union for each outlet are provided for a complete assembly. Ideal valve location is at high point in system. Refer to Orenco Automatic Distributing Valve Assemblies (NTP-VA-1) before installation.

Orenco Automatic Distributing Valve Typical Application

• Large Drainfield Dosing when Smaller Pumps are Desired
• Even Distribution to Zoned Disposal Areas
• Sand Filter Dosing
• Multiple Orenco AdvanTex Treatment Pod Dosing

Orenco Automatic Distributing Valve Technical Details

• Mechanically Operated Requiring No Electrical Control or Wiring
• Sequences Pump Between 2 and 6 Zones Depending on Model
• Reduces System Pump and Pipe Size Requirements
• Requires Screened High Head Effluent Pumps for Operation
• Ball Valve and Clear Pipe Included in Assembly to Provide Ease of Operation
• See Orenco Document NTP-VA-1 for Additional Application Information

Orenco Automatic Distributing Valve Head Loss Curves

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Orenco Automatic Distributing Valve Product Resources