Silent Shadow
Pump Stations
Unique Features of the Silent Series pumps.
Description - Turbine pumps with water cooled motors sealed inside a water filled tube.
Quiet - The water surrounding the pump and motor makes the pumps almost silent.
Efficient - Turbine pumps are notable for their high efficiencies.
Durable
 |
Water cools the motor better than air cooled motors used on other pumps. |
|
Turbine pumps have a concentric flow pattern and a diffuser, resulting in smooth and durable operation over an extremely wide range of flows. Turbines work smoothly because they have no appreciable radial thrust, and because turbine pumps naturally resist recirculation cavitation. |
|
Turbine pump motors always have thrust bearings to account for axial thrust, whereas other pump motors often do not have axial thrust bearings. Many large pump motors fail or have habitually short life expectancy because of axial thrust problems. |
Serviceable
|
Pumps can be removed in 15 minutes using basic hand tools. |
|
No lubrication is ever required because the water lubricates the bearings. |
|
Turbine pump bearings have a long life expectancy and seldom require service, primarily because turbine pumps have no appreciable radial thrust. Volute pumps can exhibit short bearing life because volute pumps have large radial thrust reactions, especially at flow rates below and above the Best Efficiency Point (BEP). |
Silent Series Pump Stations are typically purchased with the Shadow Enclosure System. Follow the link below to learn about the Shadow Enclosure System.
Scroll down to learn about Silent Series Pump Stations
Or
Follow the link below to the Silent Shadow Gallery (Photos & Drawings)
Silent Shadow Pump Station Features
Safety
NO HIGH VOLTAGE IN THE LAKE - When submersible pumps are installed into lakes the high voltage (200-480 volts AC) must be run through wires to the submersible motor located in the lake. The conduit carrying these wires must pass through the shore line where the ground is soft and unstable.
The Silent Shadow pump station eliminates the high voltage wiring in the lake. As with any pump obtaining water from a lake or canal, the only thing to install into the lake with a Silent Series Pump Station is the intake line and intake screens.
Quiet
Silent Shadow pump stations are quiet. These pump stations are used on projects where the pump station will be close to homes or buildings where pump sounds would be offensive.
Go here to find out more about Silent Shadow Sound Levels
Low Maintenance Costs
Submersible pumps installed into lakes are difficult to service, requiring heavy equipment and/or numerous people to handle the heavy pumps or even enter the water. The most common method of cleaning the screens is to hire a diver. To service or replace the pump or motor, the pipe and electrical conduit with must be disconnected or cut at the shore line and lifted out of the water with a crane or backhoe. If the motor or pump is found to be bad the contractor must obtain the new pump and motor and then repeat the crane operation again. All the operations just described require a minimum of two people, and possibly three people or more will be needed.
Silent Shadow pumps and intake screens are easy to service. The screens can be cleaned by a diver, or the intake line can be disconnected at the shore line and pulled out of the water. The pumps and motors can be removed in about 15 minutes with a few basic hand tools. Larger silent series pumps may require two people or a small truck mounted lift to handle the weight of the pump, but the time for removal is still 15 minutes, and a crane or backhoe is not required.
UL® Listed as a Packaged Pumping System - No Engineering Required
The entire pump station is UL Listed (QCZJ "Packaged Pumping Systems"), not just the control panel. Project electrical plans need only show electrical service to the Silent Shadow. Since there is no high voltage wire leaving the station, and because the station is Listed, there is no further involvement with the electrical engineer or inspector.
There is no UL Listing program for installing a submersible pump and motor installed into a lake. Therefore the Florida Building Code and National Electrical Code require an electrical engineer with a PE to draw and specify the installation. Can you find an engineer with a PE to provide that service ? If so, what will that engineer cost ? What will the equipment cost that is specified by the engineer ?
Find out more about UL Listing and how it works
Controls
| Clock Demand |
| Pressure Demand - (Pressure On/Flow Off), High Side Monitoring |
| Hybrid - Low pressure at all times, high pressure on Clock Demand. This option is selected for special applications such as older PVC pipe systems, Large systems, systems with large elevation changes, systems supplied from expensive water sources (Caribbean Islands, South & Central America). |
| UL Listed - UL® 508A, "Enclosed Industrial Control Panels |
Learn more about Irrigation Craft Control Panels
Pipe Manifold Options
| Standard manifold is schedule 40 hot dip galvanized steel. |
| Optional materials available are: |
· Schedule 80 PVC
· Type 316 stainless steel
· Copper
Learn more about Grooved Pipe Manifolds
Other Options
| Irrigation Controllers - As required by specifier or owner. Controllers are pre-wired to the field and supplied with surge protected power source in the station control panel. |
| Flow Meter - Standard meter is SeaMetrics turbine with Ruby Bearings, digital indication of flow rate, flow total, and outputs for central controls and automation systems. Optional Insertion Magnetic Flow Meter is available. |
| Chemical Injection - Includes injection pump and chemical storage tank, all enclosed by the Shadow enclosure system. |
Additional Features & Advantages
-
UL® Listed Control Panel - All Irrigation Craft control panels are UL Listed under UL® 508A - Enclosed Industrial Control Panels.
-
Higher Efficiencies - Turbine pumps typically have higher efficiencies than centrifugal pumps. This is especially true of multi-stage turbines which is what Irrigation Craft uses for irrigation. This simply means that electricity is used more efficiently and the motor can in some cases be downsized.
-
Pressure Control Valve - Every Silent Shadow includes a pressure control valve to provide a smooth even flow of water to the PVC plastic mainline.
-
Low Pressure Alarm & Shut-Down - All Silent Shadow stations include as standard equipment a Low Pressure Alarm feature that shuts the station down under high flow conditions such as when valves stay open or mainlines fail.
-
Fuseless - All Irrigation Craft pump stations and control panels are fuseless. Circuit breakers only are used.
