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 from from 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