Specifications
Page 16
Milan Supply Company/Milan Engineered Systems
All Orenco pump packages have these
basic components:
• Biotube
®
pump vault
• Splice box
• Float switch assembly
• Discharge plumbing assembly
• Ef uent pump
• Control panel
Tank, risers, lids, and tank accessories
must be ordered separately.
Orenco pumping packages are used for pumping ef uent from
single or double compartment septic tanks and dosing tanks. Pat-
ented Biotube
®
vault technology lters out solids so that only liquid
from the “clear zone” between the tank’s scum and sludge layers
is pumped. This reduces biological loading and clogging of down-
stream components, saving money in O&M and extending the life
of drain elds and other downstream components.
All systems are preassembled with corrosion-resistant, durable
components, ensuring reliability. To simplify the selection process
for Orenco pumping systems, we have developed pump and pump
basin packages that t most applications.
Design Aid CD-ROM
Orenco’s Design Aid Catalog and CD-ROM is an invaluable tool for designers of onsite wastewater treatment systems.
It includes Orenco’s stand-alone PumpSelect™ program that takes the guesswork out of sizing pumps and con gur-
ing carrier lines. PumpSelect™ provides fast, error-free hydraulic calculations and generates system curves.
Biotube Pump Vaults
Orenco Biotube® pump vaults are used to transport ltered ef uent from septic tanks or separate dosing tanks in ef-
uent pumping systems. Pump vaults house a Biotube ef uent lter and one or two Orenco high-head ef uent pumps
and can be used in single-compartment septic tanks with ows up to 40 gpm. When ows are greater than 40 gpm, a
double-compartment septic tank or separate dosing tank is recommended. Pump vaults are 12 in. in diameter, and ac-
commodate one pump (simplex) or two pumps (duplex). Each pump vault comes with a Biotube lter cartridge, vault
housing, support pipes, and oat bracket to hold the oat assembly. Custom lengths can be produced.
High-head Ef uent Pumps — PF Series
Orenco high-head ef uent pumps are manufactured speci cally for wastewater applications, to transport ltered
ef uent from septic tanks. High-head capabilities make them the ideal choice for STEP ef uent sewer systems. Steep
pump curves provide high-pressure capacity to clear plugged ori ces in pressurized distribution systems. Orenco
high-head ef uent pumps possess a high cycling capability (up to 300 cycles/day on most models), which is needed for
optimum treatment in many of today’s high performance onsite systems.
Pump Discharge Assemblies
Orenco pump discharge assemblies (hose and valve assemblies) are used to convey ef uent from a pump to the exte-
rior of a riser or pump basin. Pump discharge assemblies come preassembled and are composed of PVC valves and
exible hose that simplify installation and maintenance. Discharge assembly with a cold weather kit allows deeper
burial of the discharge line.
Float Switch Assemblies
Orenco oat switch assemblies can be mounted in pump vaults, ef uent screens, pump basins, and risers. Float switch
assemblies are preassembled with one or more oats mounted on a 1-in. PVC oat stem. ABS oat collars provide
secure mounting that is easily adjustable.
Internal Splice Boxes
Orenco internal splice boxes are used to safely house spliced wire connections between an electrical control panel and
such equipment as ef uent pumps and oat switches. These PVC splice boxes are available with 1 to 6 watertight cord
grips, and come with watertight splicing kit.
Orenco Systems Inc. - STEP Systems