The Ivan Labs El SID circulating pumps have been the best choice for solar hot water and radiant heat for the past few decades. For solar hot water they are used to pump water from the solar collector(s) to the heat exchanger and from the heat exchanger to the hot water tank/heater. In a radiant heat application, there is usually one pump used per heating loop and they can be controlled separately by thermostats. This eliminates the need for zone valves.
As they are DC (direct current) pumps there is no need to use an inverter, making the system simple and efficient.
El SIDs are maintenance free , feature a 30,000 hour life expectancy, have no bearings, no brushes and no seals to wear out. They are also very quiet making them good for installation in living areas of your home.
Table of Contents
El SID Pump Driver
SID is an acronym for STATIC IMPELLER DRIVEN. These pumps use an electronic pump driver that simply creates a magnetic field. There are no moving parts inside the motor and no risk of spark. A magnetic field is generated that drives the impeller without touching it.
The electric driver is fastened to the pump housing with 4 Phillips head screws. It can be removed from the pump without any loss of water. We usually recommend you leave the driver off the system until the system is filled with water and there is no more risk of leaks.
One last thing to consider about the driver is the fact that it is not waterproof. If water or antifreeze is allowed to contact the driver, it will likely be damaged.
The El SID’s Pump Head
The pump’s impeller is housed in a brass housing, and covered with a stainless steel plate. There are four slotted screws holding the plate on the housing and there is an o-ring between the plate and the housing.
Everything inside the pump is corrosion proof and the brass housing is well made and machined to a fine tolerance.
At each end of the housing is a 1/2″ male pipe thread. We recommend installing 1/2″ brass unions at each end of the pump to make pump removal easy if needed at a later date.
All of the El SID circulation pumps will operate at temperatures up to 250o F and up to 175 psi. If you exceed 175 psi it is possible the stainless steel plate on the pump head will distort causing leakage and/or impeller contact.
Applications for Ivan Labs Pumps
The PV (photovoltaic) models are designed to operate from a solar panel, will operate at 8-20 volts and are usually used for solar hot water and solar heating applications.
The battery models will operate at a voltage of 8-16 volts and are most commonly used for radiant heat, aquaculture, ponds and homemade air conditioning systems.
If you connect a battery model to a solar panel it will be damaged if the voltage climbs above 16 volts.
It can also be damaged if the PV module is making power but not enough power to operate the pump. In this situation, the impeller will not be moving but still have power going into it. The driver can overheat and be damaged. The PV pump models actually have locked rotor protection built into them.
If you connect a PV model to a battery, the pump will not be damaged. It will however operate at reduced capacity.
3.5 Watt El SID Pump Models
Ivan Labs El Sid SID3.5PV DC Circulating Pump (2W2RD341500)
TO PURCHASE AN IVAN LABS SID3.5PV PUMP CLICK HERE.
The SID3.5PV is a 3.5 watt 12 volt PV (solar module) direct pump capable of circulating up to 2.0 gallons per minute of water. It operates directly from a solar module with an input voltage up to 20 volts. The SID3.5PV starts to operate at 8 volts with as little power as 1 watt. This pump is designed to be used with a 3.5 watt module for circulating water and 5 watt module for glycol. It can be wired direct to the module in a solar hot water system eliminating the need for controls. When the sun shines the SID3.5PV turns on circulating water or glycol through a hot water collector. When the sun goes down the pump turns off. It’s that simple!
You may also use a 2W2DELTA/12 temperature controller for more accurate and efficient operation.
The SID3.5PV is large enough to circulate a system with one 4X10 foot collector. For a system with a larger collector, multiple collectors or a volume more than 2.0 gallons per minute, a larger pump is required.
Specifications:
| Watts | 3.5 |
| Maximum Head in Feet | 1.8 |
| Maximum Flow in GPM | 2.0 |
| Operating Voltage (DC) | 8 to 20 |
5 Watt El SID Pump Models
Ivan Labs El Sid SID5PV DC Circulating Pump (2W2RD331200)
TO PURCHASE AN IVAN LABS SID5PV PUMP CLICK HERE.
The SID5PV is a 5 watt 12 volt PV (solar module) direct pump capable of circulating up to 2.5 gallons per minute of water. It operates directly from a solar module with an input voltage up to 20 volts. It starts to operate at 8 volts with as little power as 1 watt. This pump is designed to be used with a 3.5-5 watt module for circulating water and 5 watt module for glycol. It can be wired direct to the module in a solar hot water system eliminating the need for controls. When the sun shines the SID5PV turns on circulating water or glycol through a hot water collector. When the sun goes down the pump turns off. It’s that simple!
You may also use a 2W2DELTA/12 temperature controller for more accurate and efficient operation!
The SID5PV is large enough to circulate water in a system with two 4X10 foot collectors using a 5 watt module. It can circulate glycol in a system with one 4X10 foot collector using a 5 watt module.
For a water system with more than two collectors or volume more than 2.5 gallons per minute a larger pump is required. For a glycol system with a larger collector, multiple collectors or a volume more than 2.5 gallons per minute, a larger pump is required.
Specifications:
| Watts | 5.0 |
| Maximum Head in Feet | 2.2 |
| Maximum Flow in GPM | 2.5 |
| Operating Voltage (DC) | 8 to 20 |
10 Watt El SID Pump Models
Ivan Labs El Sid SID10PV DC Circulating Pump (2W2RD31730)
TO PURCHASE AN IVAN LABS SID10PV PUMP CLICK HERE.
The SID10PV is a 10 watt 12 volt PV (solar module) direct pump capable of circulating up to 3.3 gallons per minute of water. It operates directly from a solar module with an input voltage up to 20 volts. The SID10PV starts to operate at 8 volts with as little power as 1 watt. This pump is designed to be used with a 10 watt module for circulating water and 20 watt module for glycol. It can be wired direct to the module in a solar hot water system eliminating the need for controls. When the sun shines the SID10PV turns on circulating water or glycol through a hot water collector. When the sun goes down the pump turns off. It’s that simple!
You may also use a 2W2DELTA/12 temperature controller for more accurate and efficient operation.
The SID10PV is large enough to circulate water in a system with up to three 4X10 foot collectors using a 10 watt module. It can circulate glycol in a system with up to two 4X10 foot collectors using a 20 watt module.
For a water system with more than three collectors or a volume more than 3.3 gallons per minute a larger pump or multiple pumps are required. For a glycol system with more than two collectors or a volume more than 3.3 gallons per minute, a larger pump or more than one pump is required.
Specifications:
| Watts | 10 |
| Maximum Head in Feet | 3.5 |
| Maximum Flow in GPM | 3.3 |
| Operating Voltage (DC) | 8 to 20 |
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Ivan Labs El Sid SID10B12 12 volt DC Circulating Pump (2W2RD30600)
TO PURCHASE AN IVAN LABS SID10B12 PUMP CLICK HERE.
The SID10B12 is a 10 watt 12 volt DC pump capable of circulating up to 3.3 gallons per minute of water. It operates from a 12 volt battery or bank of batteries. It can also operate from an AC to DC 12 volt wall adapter. The SID10B12 can operate at 8 volts with as little power as 1 watt. This pump is designed to be used in radiant heat applications, hot water baseboard or with inside or outside hot water boilers. It uses 12 volt DC power eliminating the need for an inverter. Each SID10B12 pump only consumes 10 watts instead of the 150-200 watts a standard 120 volt circulating pump uses.
You may use a 2W2DELTA/12 temperature controller for more accurate and efficient operation with your boiler or water heater.
The SID10B12 is large enough to circulate 3.3 gallons per minute of water in a closed loop system such as a radiant heat or hot water baseboard system. Generally, each loop requires one pump.
Specifications:
| Watts | 10 |
| Maximum Head in Feet | 3.5 |
| Maximum Flow in GPM | 3.3 |
| Operating Voltage (DC) | 8 to 16 |
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Ivan Labs El Sid SID10B24 24 volt DC Circulating Pump (2W2RE31800)
TO PURCHASE AN IVAN LABS SID10B24 PUMP CLICK HERE.
Ivan Labs Inc. El Sid SID10B24 is a 10 watt 24 volt DC pump capable of circulating up to 3.3 gallons per minute of water. It operates from a 24 volt battery or bank of batteries. It can also operate from an AC to DC 24 volt wall adapter. The SID10B24 can operate at 20 volts with as little power as 1 watt. This pump is designed to be used in radiant heat applications, hot water baseboard or with inside or outside hot water boilers. It uses 24 volt DC power eliminating the need for an inverter. Each SID10B24 pump only consumes 10 watts instead of the 150-200 watts a standard 120 volt circulating pump uses.
You may use a 2W2DELTA/24 temperature controller for more accurate and efficient operation with your boiler or water heater.
The SID10B24 is large enough to circulate 3.3 gallons per minute of water in a closed loop system such as a radiant heat or hot water baseboard system. Generally, each loop requires one pump.
Specifications:
| Watts | 10 |
| Maximum Head in Feet | 3.5 |
| Maximum Flow in GPM | 3.3 |
| Operating Voltage (DC) | 20 to 35 |
20 Watt El SID Pump Models
Ivan Labs El Sid SID20PV DC Circulating Pump
TO PURCHASE AN IVAN LABS SID20PV PUMP CLICK HERE.
The SID20PV is a 20 watt 12 volt PV (solar module) direct pump capable of circulating up to 6.0 gallons per minute of water. It operates directly from a solar module with an input voltage up to 20 volts. The SID20PV starts to operate at 3.1 volts with as little power as 1.1 amps. This pump is designed to be used with a 20 watt module for circulating water and 30 watt module for glycol. It can be wired direct to the module in a solar hot water system eliminating the need for controls. When the sun shines the SID20PV turns on circulating water or glycol through a hot water collector. When the sun goes down the pump turns off. It’s that simple!
You may also use a 2W2DELTA/12 temperature controller for more accurate and efficient operation.
The SID20PV is large enough to circulate water in a system with up to four 4X10 foot collectors using a 20 watt module. It can circulate glycol in a system with up to three 4X10 foot collectors using a 30 watt module.
For a water system with more than four collectors or a volume more than 6.0 gallons per minute, multiple pumps are required. For a glycol system with more than three collectors or a volume more than 6.0 gallons per minute, more than one pump is required.
Specifications:
| Watts | 20 |
| Maximum Head in Feet | 6.8 |
| Maximum Flow in GPM | 6.0 |
| Operating Voltage (DC) | 8 to 20 |
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Ivan Labs El Sid SID20B12 12 volt DC Circulating Pump
TO PURCHASE AN IVAN LABS SID20B12 PUMP CLICK HERE.
The SID20B12 is a 20 watt 12 volt DC pump capable of circulating up to 6.0 gallons per minute of water. It operates from a 12 volt battery or bank of batteries. It can also operate from an AC to DC 12 volt wall adapter. The SID20B12 will begin to operate at 8 volts with as little power as 1 watt. This pump is designed to be used in radiant heat applications, hot water baseboard or with inside or outside hot water boilers. It uses 12 volt DC power eliminating the need for an inverter. Each SID20B12 pump only consumes 20 watts instead of the 150-200 watts a standard 120 volt circulating pump uses.
You may use a 2W2DELTA/12 temperature controller for more accurate and efficient operation with your boiler or water heater.
The SID20B12 is large enough to circulate 6.0 gallons per minute of water in a closed loop system such as a radiant heat or hot water baseboard system. Generally, each loop requires one pump.
Specifications:
| Watts | 20 |
| Maximum Head in Feet | 6.8 |
| Maximum Flow in GPM | 6.0 |
| Operating Voltage (DC) | 8 to 16 |
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home heating,
water heating