RPS-Reverse Action Pressure Switch for Solar Pumps (Optional Poly Pipe Barb Tee)

Due to global supply chain constraints lead times for shipments may be delayed. We are actively working with our suppliers to mitigate shortages and improve lead times. If you have questions, please contact your AMRtechnologiesInc. representative at 1-800-213-0227 or submit your question AMRtechsolar@gmail.com

Reverse Action Pressure Switch for Solar Pumps (Optional Poly Pipe Barb Tee)

Pressure Switch only  $62.50

With 3/4" poly pipe hose Barb tee and connectors  $79.00

With 1" poly pipe hose Barb tee and connector $79.00

With 1-1/4" poly pipe hose Barb tee and connectors $99.00

Square D brand like traditional AC pump pressure switches, just working in reverse electrically. These switches complete a circuit with 2 signal wires when the pressure is up to the setting. Those 2 signal wires run into and any RPS Solar Pump Controller (RPS 200, 400, 800 Pumps and RPS Pro Series) Set to 30/50 psi by default but adjustable. Remember each psi means 2.31ft of head on your pump. 

Since AC pump traditionally are powered on and off with a pressure switch located on a tank tee of a pressure tank, many times there are not signal wires setup underground between the well head and the storage tank. Not a problem. An alternative to wires is a pressure switch attached to the plumbing from the well head to the tank. At the pump you’ll need a check valve, and on the tank you’ll need a mechanical float valve (ball float that closes a 3/4″ or 1″ valve and shuts off water) that will spike pressure in the line when it closes. Somewhere along the line between the two you need a ‘Tee’ with 1/4" Male threaded nipple and a reverse action pressure switch to your pump controller.

Kick up the pressure! Without a pressure tank, solar pumps can easily provide up to 20 PSI for things like drip lines, flood irrigation or other micro irrigation. For 30, 45 or 60 PSI applications, like sprinklers (B) or soakers, you’ll need to pair a pressure tank (A) to maintain consistent flow. We have solar pumps that accommodate a single 5 GPM sprinkler, or higher volume options for a zone of multiple sprinklers 20+GPM. 

Two pieces of special plumbing are needed to make a submersible pump to pressure tank system work; a check valve and a reverse action pressure switch. The check valve (B), a one way valve that stops water from draining back through the pump, helps maintain pressure in the pipeline. The reverse action pressure switch (A) senses changes in pipeline pressure, if the pressure tank is emptying and therefore asking for more water, or filled up. The reverse action pressure switch is wired into the charge controller and will send a sensor pulse to either turn on the pump (if the pressure tank is asking for water) or turn the pump off (if the pressure tank is full). When an irrigation timer (A) is added into the equation the pressure tank only starts discharging water once the ball bearing in the irrigation timer opens up the pipeline. Reverse action pressure switches are adjustable to a variety of settings like 40/60 , 30/50 or 20/40, we sell there here. Watch our video about adjusting a reverse action pressure switch here. If the water was allowed to drain back through the pump without the check valve (which is sometimes useful in freeze proofing a system) then the reverse action pressure switch would not be able to sense the changes in line pressure. And if you’re worried about the pump turning on/off multiple times during the day – don’t be! Our submersible pumps are all soft start/ slow stop, meaning no grinding parts or start up torque. 

If a surface pump out of a tank won’t work(require 60 PSI, want to hide the pump for security reasons etc.), a submersible pump may be placed inside of a storage tank. Choose between vertical or horizontal placement depending on preference.   

Submersible pumps can’t provide 45 -60 psi for a household by themselves, they require the help of a pressure tank for reliable, consistent higher pressure. An RPS 200, RPS 400, RPS 600, RPS 800 or RPS 400N could be used in this setup as they are all compatible with batteries (A), which you’ll need for off hour or nighttime pumping. Without batteries, the submersible pump would only operate from sun up to sun down. After sun down you would only have what’s available in the pressure tank, which some rare customers opt for because their water needs are extremely minimal. We recommend splurging on a larger capacity pressure tank rather than smaller for off grid set up, it provides some extra storage and minimizes pump cycling. Two pieces of special plumbing are needed to make a submersible pump to pressure tank system work; a check valve and a reverse action pressure switch. The check valve screwed directly on to the put outlet (C), a one way valve that stops water from draining back through the pump, helps maintain pressure in the pipeline. The reverse action pressure switch (B) senses changes in pipeline pressure, if the pressure tank is draining and therefore asking for more water, or filled up. The reverse action pressure switch is wired into the charge controller and will send a sensor pulse to either turn on the pump (if the pressure tank is asking for water) or turn the pump off (if the pressure tank is full). Reverse action pressure switches are adjustable to a variety of settings like 40/60 , 30/50 or 20/40, we sell there here. Watch our video about adjusting a reverse action pressure switch here. If the water were allowed to drain back through the pump (which is sometimes useful in freeze proofing a system) then the reverse action pressure switch would be unable to sense the changes in line pressure. A low water sensor (C)  placed one foot above the pump acts as run dry protection. And if you’re worried about the pump turning on/off multiple times during the day – don’t be! Our submersible pumps are all soft start/ slow stop, meaning no grinding parts or start up torque.

We love when customers are able to use a readily available water resource on their property, like a creek or river. Our Pro Irrigation Surface Pumps provides bang-for-your-buck high rate of flow and can ramp up to 45 PSI to match a variety of irrigation (sprinklers/drip/soaker hoses) or water movement needs. Keep in mind that the pump itself should not be submerged. If your creek bank floods in the wintertime, either build a platform or move the system seasonally. A foot valve (A) suctions water from the creek. Maximum suction lift is 25 feet, our engineers recommend placing the pump within 20 linear feet of the water source. The pump is wired directly to our RPS Pro Controller (B), ensuring MPPT maximum efficiency and variable speed control. Integrating a reverse action pressure switch and irrigation timer (C) automates watering cycles and helps prevent deadheading the pump ( pumping into a closed line).     

Kick up the pressure! Without a pressure tank, solar pumps can easily provide up to 20 PSI for things like drip lines, flood irrigation or other micro irrigation. For 30, 45 or 60 PSI applications, like sprinklers (B) or soakers, you’ll need to pair a pressure tank (A) to maintain consistent flow. We have solar pumps that accommodate a single 5 GPM sprinkler, or higher volume options for a zone of multiple sprinklers 20+GPM. This example uses one of our Pro Volume systems. 

Two pieces of special plumbing are needed to make a submersible pump to pressure tank system work; a check valve and a reverse action pressure switch. The check valve, a one way valve attached directly to the pump that stops water from draining back through the pump, helps maintain pressure in the pipeline. The reverse action pressure switch (A) senses changes in pipeline pressure, if the pressure tank is emptying and therefore asking for more water, or filled up. The reverse action pressure switch is wired into the charge controller and will send a sensor pulse to either turn on the pump (if the pressure tank is asking for water) or turn the pump off (if the pressure tank is full). When an irrigation timer (A) is added into the equation the pressure tank only starts discharging water once the ball bearing in the irrigation timer opens up the pipeline. Reverse action pressure switches are adjustable to a variety of settings like 40/60 , 30/50 or 20/40, we sell there here. Watch our video about adjusting a reverse action pressure switch here. If the water was allowed to drain back through the pump without the check valve (which is sometimes useful in freeze proofing a system) then the reverse action pressure switch would not be able to sense the changes in line pressure. And if you’re worried about the pump turning on/off multiple times during the day – don’t be! Our submersible pumps are all soft start, slow stop, meaning no grinding parts or start up torque.

This Product does not include Tax and shipping costs. International shipping is subject to regulations and Import Taxation of Country of destination.