- 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™
Shown is 1/2" female NPT adapters and 1/2" pipe. Also shown are the heads of four Philips screws that fasten the 2W2 driver onto the head.
Wetted materials are:
- Food Grade Stainless Steel
- Cast Bronze
- Teflon
- Hi-Temp ROYTON Plastic
- Ceramic Ferrite Magnet
Four common screw heads are shown, holding the stainless steel fluid retaining plate in place. Also shown are four screws coming from the back of the pump head. When the 2W2 driver is in place, a total of eight screws squeeze the fluid retaining plate in place.
Note that there is no shaft and [of course] no shaft-seal. The crown at the center of the retaining plate houses an eight pole ceramic magnet. Thus, the rotating magnetic field in the 2W2 driver is coupled to the impeller, which resides in the fluid.
Easy to install
The brass pump is soldered into your copper plumbing, and the driver screws on top of it. Any driver [regardless of size] can be interchanged on the same pump, which means that if the pump doesn't provide the flow you need, you can install a larger driver within a couple of minutes.
PV MODELS
Model SID3.5
A 3.5-watt driver, intended for PV domestic hot water and instant hot water circulation without glycol. Requires a 5 watt Amorphous/CIS module or larger such as Shell ST5. It is rated for 2.0gpm and can be used in open loop water systems with one 4x10 solar collector.
Model SID5
A 5-Watt driver, intended for PV domestic hot water and 24 hour instant hot water circulation. Requires a 5 watt Crystalline module or larger such as BP SX5M. It is rated for 2.5gpm and can be used in open loop water systems with one 4x10 solar collector.
Model SID10
A 10-Watt driver used for domestic solar hot water and 24 hour instant hot water in large homes. Requires a 10watt Crystalline module or larger such as BP SX10M. It is rated for 3.3gpm and can be used in open loop water systems with up to three 4x10 solar collectors or in closed loop antifreeze systems with up to two 4x10 solar collectors.
Model SID20
Requires a 30 watt Crystalline module or larger. It is rated for 6.0gpm and can be used in larger systems [call for details].
See specifications for "B" Models [battery operated] shown above
To purchase, please visit The Energy SuperMarket
