SID stands for static-impeller driven, which means the pump contains an electronic driver or motor that has no moving parts but simply spins on a magnetic field. The magnetic field grasps the impeller and visibly spins it without any moving parts or seals. As a result, it's extremely long-lived without much power consumption. These pumps are completely brass and stainless steel, so they don't corrode.
The El SID pumps have no seals which can leak, and no bearings to get hot or brushes to spark - they are explosion proof.
Product Applications:
• Solar Domestic Water Heating Systems - closed loop
• Floor Heating Systems
Product Function:
This pump is used to circulate the water throughout the radiant panel or other hot water heat emitting system.
Product Features:
• Brass and stainless steel construction
• Power source AC/DC
• High efficiency - typical start 1 watt
• Magnetic coupled drive
• Locked impeller protected [PV]
• No shaft - no fan
• Brushless
• No maintenance required
• Quiet operation
LED Signals**
Four red LEDs will glow when the impeller is spinning. Two will light if the impeller is stuck, one above and one below.
**Note SID5V does not have led indicators.
Product Specifications:
• Light weight - 2 lbs
• Compact size: 2.75" sq - 3" thick
• Low voltage [class II] driver
• High temperature - 250°F fluid max.
• High pressure - 175 psi. max
• Vertical or horizontal piping
All 2W2 drivers look alike. [Two Wire, 2nd Version]
All 2W2 drivers are Static Impeller Drivers™. SID™
Frequently Asked Questions:
What is the difference between the B [battery] and PV [photovoltaic] versions?
There are specific models that can be operated directly off a PV panel or a battery, or off an independent AC power supply. If you're going to use an AC power supply:
• 14-17 volts; use a PV model
• 12 to 14 volts; you can use a B model
What is the pump's power usage?
3.5 or 5 or 20 watts at 12 V, and 10 watts at 12 or 24 V.
What is the SID pump's best use?
The pumps are circulating, and are best for circulating water in a closed-loop system, such as heating or solar. As for anything else, their use is as unlimited as your imagination. Keep in mind they'll pump water, as well as antifreeze and various other chemicals.
Here are just a couple of ideas:
• You can power them with a small RV deep-cycle 12-volt battery. Keep a trickle charger on the battery so that if the power goes out your pump will keep on running.
• For solar system loops, the SID can be powered directly from a PV panel. The sun comes up, heat builds in the solar hot water panel and at the same time electricity is made in the PV panel. The pump slowly starts with the smallest amount of current and pushes the heated water to the storage tank. It's all too simple and eliminates all controllers, thermostats and sensors.
What is the most common size?
The SID10, because it's been around the longest. It's a good average size for radiant floor heat and domestic hot water solar.
What would the 3.5 and 5.0 watt models be used for?
Smaller systems, anything that needs less lift.
Why are SID pumps more expensive?
They're actually fairly inexpensive compared with other cheaper and shorter-lived pumps. They have, for instance, no brushes to change, and no moving or rubbing parts
