4BSV with Vacuum Stem Tip Creation

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NOTE: ONLY DO ONE AT A TIME!! Each top section is specific to each valve. Will cause leaks if not paired correctly.

  1. Tools for the modification:
    Laying on a table are the tools needed for the 4BSV modification. Left upper corner is the 4BS Valve with the knob attached. Moving clockwise is the copper stem in its packaging, an allen wrench, a 1/4 inch wrench, and in the center is a brass tool used to pick and lift out a gasket.
    Tools needed for the 4BSV modification.
  2. Loosen the two setscrews with the allen wrench and remove the knob.
    Laying on a table are the tools needed for the 4BSV modification. In the upper middle is the 4BS Valve laying on its side with the knob removed sitting on the right. Moving clockwise is the an allen wrench, copper stem in its packaging, a brass tool used to pick and lift out a gasket, and a 1/4 inch wrench.
    Tools needed for the 4BSV modification with the BS valve knob removed.
  3. Remove the top part of the valve using 1 inch wrench.
    A vise grip holding the BS valve with a 1 inch wrench over the stem tip removing the top part of the valve.
    4BSV in a vice grip with the top part of the valve being removed with a 1 in. wrench.
  4. This is what it will look like after removing top part of valve.
    A 4BS valve disassembled with its three main components on the table. Left, the body of the bellows-sealed valve (BSV), middle is the stainless steel tip with old silver gasket still attached, and to the right is the panel nut.
    4BSV dissembled.
  5. Here is a top view of body with old silver gasket still in place.
    A top view of the BSV body on a table and the stainless steel stem with the old silver gasket still attached laying on its side on the table as well.
    A top view of the BSV body and the old silver gasket still attached to the stainless steel stem.
  6. These are the tools for mod. The brass tool can be used to pick and lift out the old silver gasket. Do not remove silver gasket, only the stainless stem tip.
    Sitting on a table are the tools that needed for the modification to the BSV. In the upper left corner is the box that the bellows-sealed valve (BSV) came in from Aeon Laboratories, moving clockwise also sitting on the table is the replacement copper stem in its original packaging, an allen wrench, spiraling in above that is the quarter inch wrench and a brass tool for removing the old silver gasket.
    These are the tools needed for the BSV adapter modification.
  7. Ready to remove stainless stem tip. Use BSV stem tip wrench instead of 1/4 inch wrench. A 5/16 inch wrench also required.
    A stainless steel stem from the 4BSV on its side with a silver gasket sticking out of the top, next to it on the table are two different size wrenches, one at 1/4 inch and the other at 5/16 inch.
    Replace the stainless steel stem's silver gasket using the two different size wrenches.
  8. Remove the stainless steel stem tip.
    A vise grip is sitting on a table holding a stainless steel tip from a 4BSV. At the bottom of the stainless steel tip is a silver gasket. Holding the gasket into place is are two bolts, at the base of the stem tip is the 1/4 inch wrench removing a bolt and next to that is the 5/16 inch wrench removing the outer bolt.
    Two wrenches removing a silver gasket from a stainless steel tip part belonging to a 4BSV.
  9. Here is the stainless stem tip removed.
    A stainless steel stem from a 4BSV in a vise grip sitting on a table with the silver gasket removed and the two different wrenches used for removing the gasket beside it.
    4BSV stainless steel stem with the silver gasket removed.
  10. This is what it will look like when the copper stem tip as received.
    A copper bellows-sealed valve (BSV) adapter in side of a blue and white package with a plastic window. The valve is less than an inch long, silver and has an orange copper tip.
    The copper BS valve adapter in its original packaging.
  11. Here you can compare the valve stem with stainless tip still installed verses the copper tip beside it.
    both bellows-seal valve tips side-by-side. On the left is the copper stem tip, mainly silver with screw like ridges and then a thicker silver end and a copper tip, on the right is the silver gauge distinguished by its round top and all silver color, inside the stainless steel stem from the 4BSV.
    A copper stem tip verses a silver gauge for a 4BSV.
  12. Now, install copper stem tip.
    A vise grip sitting on a table holding the stainless steel stem from a 4BSV with two wrenches securing the bolts to attach a copper tip adapter.
    Installing the copper tip adapter in the 4BSV stainless steel stem with two different size wrenches.
  13. Notice the torque wrench setting: 33 foot-pounds,
    If an old gasket is being used then the wrench will need to be set to 44 foot-pounds.
    A close up of the torque wrench setting at 33 foot-pounds.
    A close up image of the labels on a torque wrench.
  14. This tool is a torque wrench socket: 1-inch, deep socket.
    A silver torque wrench socket measuring 1 inch deep sitting on a table.
    A 1 inch deep socket attached to a torque wrench.
  15. Reinstall top part of valve and tighten the nut with the torque wrench.
    A vise grip holding the base of a 4BSV to reinstall the stainless steel stem with a torque wrench.
    A stainless steel stem being reinstalled on the 4BSV base with a torque wrench.
  16. This will be what the valve will look like reassembled.
    A assembled bellows-sealed valve after it has had the copper tip installed into the stainless steel stem sitting on its base on top of a table.
    A assembled bellows-sealed valve after it has had the copper tip installed into the stainless steel stem.
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