Assembly talbot closed.JPG
FA info icon.svg Angle down icon.svg Device data
Manufacturing files
Hardware license CERN-OHL-S
Certifications Start OSHWA certification
FA info icon.svg Angle down icon.svg Project data
Authors Eric Bauer
Made Yes
Replicated No
Cost USD 1.58
OKH Manifest Download

Talbot Type Water Tap[edit | edit source]

Project developed by Eric Bauer

Abstract[edit | edit source]

  • Talbot water taps are used extensively throughout the low income countries of the world. This type of tap is extremely useful for them, but is often quite expensive to purchase; sometimes so expensive that they can't get them. This type of tap allows for automatic shutoff of the water when it is released due to the water pressure pushing it closed. This 3D printable version is 89% cheaper than a standard quarter turn water tap (these are even cheaper than a Talbot tap). Not only is this OSAT low cost, it is also extremely easy to make: simple 3D print, no support material, no extra tools needed, and a very simple assembly procedure.
  • Talbot Type Water Tap - closed position
    Assembly talbot closed.JPG

Bill of Materials[edit | edit source]

  • Printed Parts
  1. Talbot Body (quantity = 1)
  2. Talbot Housing (quantity = 1)
  3. Talbot Cap (quantity = 1)
  4. Talbot Pin (quantity = 1)
  5. link to part files and STL files
  • Purchased Parts
  1. Square cross section o-ring (quantity = 1) link to part
  2. Circle cross section o-ring (quantity = 2) link to part

Tools needed[edit | edit source]

Skills and knowledge needed[edit | edit source]

  • N/A

Technical Specifications and Assembly Instructions[edit | edit source]

  • Printing Directions
  1. Print speed = 100 mm/s
  2. Layer height = 0.10 mm
  3. Infill = 100%
  4. Print temp = 210 deg. C
  5. Material = PLA
  6. No support needed for any of the prints
  • Assembly Directions
  1. Start with tablot body Picture
  2. Put two circle profile o-rings into the grooves of the talbot body Picture
  3. Slide the talbot housing over the small diameter end of the talbot body Picture
  4. Slide the square profile o-ring over the small diameter end of the tablot body Picture
  5. Slide the tablot cap over the small diameter end of the talbot body and line up round holes in tablot body and talbot cap Picture
  6. Press talbot pin into the round holes that were just lined up Picture
  7. Thread finished part into desired 3/4" NPT female pipe fitting Picture
  • Print time estimate = 3 hours and 55 minutes
  • Assembly time estimate = 10 minutes

Common Problems and Solutions[edit | edit source]

  • Ensure your printer settings allow for accurately sized parts. If parts aren't properly sized, o-rings may not seal or will be too tight.

Cost savings[edit | edit source]

  • Commercially Available Option
  1. Talbot valves are sold on a "request a quote" price basis, but are understood to be more expensive than standard quarter turn style taps. Because of this, I was unable to find a price for a Talbot valve and will be comparing this valve to a standard quarter turn style tap.
  2. $14.41 for a standard quarter turn style tap
  • Price Breakdown
  1. 48g of PLA = $0.96 (assuming $20/kg)
  2. square profile o-ring = $0.35 per valve (1 o-ring needed)
  3. circle profile o-ring = $0.27 per valve (2 o-rings needed)
  4. TOTAL COST = $1.58 per valve
  • Price Comparison
  1. Commerical = $14.41
  2. 3D Printable = $1.58
  3. 89% cost savings

Benefited Internet Communities[edit | edit source]

References[edit | edit source]

  • The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the and <references /> tags and can be in any format but should include all the information necessary for someone else to find the same information you did.[1]
FA info icon.svg Angle down icon.svg Page data
Keywords 3d printing, talbot water tap, automatic water shut off
SDG SDG03 Good health and well-being, SDG06 Clean water and sanitation, SDG12 Responsible consumption and production
Authors Eric Bauer
License CC-BY-SA-3.0
Organizations Michigan_Tech's_Open_Sustainability_Technology_Lab
Language English (en)
Related subpages, pages link here
Impact 748 page views
Created November 16, 2019 by Eric Bauer
Modified February 28, 2024 by Felipe Schenone
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