SDS-T-128 Submersible Solar Pump

Sun Pumps

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Manufacturing & delivery
Performance & use
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Product description Brand name and product description

The Sun Pumps SDS Submersible Pump Series is comprised of eleven pump modules. The SDS (Model T-128) Submersible Pump is a solar powered submersible pump for lower water volumes from shallow depths. The pump operates on 12 to 30 volts DC that may be supplied from a variety of independent sources including solar panels or batteries.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Worldwide distribution reach with dealers located in: Ecuador, Puerto Rico, Tanzania, United Arab Emirates, Spain, Ireland, India, Australia.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

SunPumps sells its products through dealers located in Ecuador, Puerto Rico, Tanzania, United Arab Emirates, Spain, Ireland, India, Australia

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

$549 US

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Grundfos solar pumps, Dc brushless solar water pump, SHURflo 9300.

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

SDG #6: Clean water and sanitation

Target user(s) Target user/consumer base (country, income segment)

This product can be used for water access in remote homes, campsites, for livestock, small farms or other needs beyond the power grid

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Mass manufactured in Safford, Arizona . ^{Interview with representative}

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Trade marked

User Provision Model Where can the product be purchased/acquired by end users?

Directly from the manufacturer via phone/email. Can also be ordered from authorized dealers worldwide through online Location Finder. ^{Interview with representative}

Distribution to date Number of units that have been deployed, downloads or users to date

Representative estimated over 500+ in 2014. ^Interview ^with ^{representative}

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Lift mechanism type

Centrifugal

Diameter (cm)

9.9

Max flow rate (GPM or LPM)

8.5

Maximum lift/head (m)

Power requirement: max power (watts)

146

Power requirement: max motor current (amps)

4.86

Power requirement: voltage range (volts DC)

12 -30

Solar array power (min watts)

68 W (30V pump voltage, 3.5 m TDH)

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

SDS-T series pumps are displacement submersible pumps constructed of ryton and stainless steel and corrosion resistant. The same pumps can be special ordered with 316 Stainless Steel housings and hardware for highly corrosive water. They operate on 12 to 30 volts DC that may be supplied from a variety of independent sources including solar panels or batteries. The pumps fit in a 4” well and supplies a flow rate of up to 1.6 GPM and head up to 230 Ft.

The SDS (Model T-128) Submersible Pump has the following dimensions:
• Diameter (cm): 9.9
• Height (cm): 31.2
• Weight (kg): 4.5
• Shipping weight (kg): 5.9

Product schematics Design and assembly illustrations

Pump and system assembly schematics are shown below.

Technical support Technical support provided by

Sun Pumps offers in-house repairs if necessary. They offer on-the-phone technical assistance for user repairs, and have a “Pump Service Kits” section on the website. There are also “Do It Yourself” rebuild videos available in the Media Library.

Replacement components Availability of replacement components (in-country, by order,...)

Available for purchase from manufacturer or dealers. Listed as Rebuild Kits.

Lifecycle Disposal and warranty

Limited warranty from 12 to 18 months, if the purchasers completes and sends in the warranty registration card. Instructions and warranty information available online. Lifespan depends upon the usage, amp draw, well depth, etc. ^{Interview with representative}

Manufacturer specified performance targets Designer / Manufacturer specified targets

Measured at full voltage of 30 V

• Max Flow Rate: 2.3 (GPM) 8.5 (LPM)
• Maximum Head: 230(ft.) 70(M)
• Max Watts: 146
• Max Motor Amps: 4.9

A graph of Flow Rates and Head within the possible voltage range is shown in the image below.

Vetted performance Findings of manufacturer evaluations or independent testing centers

Performance vetted by manufacturer testing.

Testing organizations Independent lab, academic research centers, etc.

Manufacturer.

Safety Potential hazards / risks related to operation of this product

No hazards listed.

Complementary technical systems Performance of this product is improved with another technology (eg. Cookstoves and Wind-blocking skirts)

Water storage tank for cloudy days. Add-ons include a solar panel, pump controller, and sand shrouds.

Academic research Academic research related to the product (e.g. published papers in peer-reviewed journals)

Solar-Powered Groundwater Pumping Systems for Domestic Use in Developing Countries Ryan Van Pelt, Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, Colorado 805231-1372, April 24, 2007 ^{Available only as an online WordDoc}

Meah, K., Fletcher, S., Ula, S., Solar photovoltaic water pumping for remote locations. Renewable and Sustainable Energy Reviews. 2008 Feb;12(2):472-487.

Alawaji, S., Smiai, M. S., Rafique, S., Stafford, B., PV-powered water pumping and desalination plant for remote areas in Saudi Arabia. Applied Energy. 1995;52(2-3);283-289.

Ghoneim, A. A., Design optimization of photoolatic powered water pumping systems. Energy Conversion and Management. 2006 Jul;47(11-12):1449-1463.

Compliance with regulations Product certifications and standards referenced by designer/manufacturer

Unknown.

Evaluation methods Evaluation methods/protocols/guidelines referenced by designer or manufacturer.

Green Empowerment – Solar Pumping Systems (SPS) Introductory and Feasibility Guide, based on Community Feasibility, Technical Feasibility, Resources’ Availability, Needs, Design Inputs, Flow and Lift Requirements and Size of the System.

WASH Technology Information Packages for UNICEF WASH Programme and supply Personnel has been cited by the manufacturer. ^{requires authentication}

Other information

None.

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