SEWER SYSTEMS

W-Series | WH471 & WR471 Grinder Pump Station

Model WH471 grinder pump station - 470 gallon grinder pump tank

The new WH471/WR471 is one of E/One's largest-capacity grinder pump stations. This station offers a capacity of 476 gallons and can handle flows of up to 2000 GPD.

Drawings & Installation Instructions

WH471/WR471 Drawings (PDF, 1.3 mb)

WH471/WR471 Drawings (zipped DXF, 13 mb)

Extreme Series Pump Curve (PDF)

WH471/WR471 Installation Instructions (PDF, 2 mb)

Model WH471 Specification — Wired Level Sensor (DOC)

Model WR471 Specification — Wireless Level Sensor (DOC)

Features

E/One's WH471/WR471 grinder pump station consists of an Extreme series grinder pump inside an open wetwell tank. The grinder pump, motor controls and level-sensing are integrated into a compact unit, easily removable for service.

The WH471 is the “hardwired,” or “wired,” model where a cable connects the motor controls to the level controls through watertight penetrations.
The WR471 is the “radio frequency identification” (RFID), or “wireless,” model that uses wireless technology to communicate between the level controls and the motor controls.

Solids are ground into fine particles that pass easily through the pump, check valve and small-diameter pipe lines — even objects that are not normally found in sewage, such as plastic, rubber, fiber, wood, etc. The 1-1/4" discharge connection can be adapted to any piping materials that meet local code requirements. The internal check valve assembly, located in the grinder pump, is custom designed for non-clog, trouble-free operation.

The tank is made of tough corrosion-resistant HDPE. Designed specifically for low pressure sewer applications, the optimum tank capacity of 476 gallons provides ample storage. A single WH471/WR471 can accommodate flows of up to 2000 gallons per day.

Stations are available in several heights to accommodate various burial depth requirements. See drawings (below) for more information.

Operational Information

Motor: 1 HP, 1725 rpm, high torque, capacitor start, thermally protected, 240 or 120 volt, 60 hertz, 1 phase

Inlet Connections: 4" inlet grommet standard for PVC pipe. Other inlet configurations available from factory.

Discharge Connections: Pump discharge terminates in 1-1/4" NPT female thread. Can easily be adapted to 1-1/4" PVC pipe or any other material required by local codes.

Discharge:
15 gpm at 0 psig
11 gpm at 40 psig
7.8 gpm at 80 psig

US and foreign patents issued and pending.