4) Building the Packed Bed Filter for GEK v3.0

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Parts needed:

     - Packed Bed Filter vessel tube

     - Bottom end plate

     - Top flange ring

     - 1/2" coupling, cut in half (3 count- 2 are shown)

     - 5/16 nuts (5 count)

     - fine steel wool for filter media

1. Weld 5/16 nuts to Bottom Plate

• Affix (5) 5/16" nuts through holes on bottom plate with 5/16" bolts
• Weld nuts in place, a full weld all the way around

2. Weld Bottom Plate and Top Flange onto Vessel Cylinder 

• Clamp bottom end plate into packed bed filter cylinder.  Slag side of plate with welded nuts should be down (inside filter tube).  Make sure to center tabs in slots around the perimeter.
• Tack end plate and cylinder together only around the bottom seam
• Clamp top flange ring into top of filter cylinder.  Slag side of flange should be down.  Make sure to center tabs in slots around the perimeter.
• Tack around bottom of flange ring.  Do NOT weld on top of flange
• Tack down side seam of vessel.  You may need to squeeze the vessel to get the seam parallel, making sure overlap stays consistent.
• Grind top surface flat after welding
• Clean up flange holes with a 11/32" drill

3. Weld accessories onto vessel cylinder

• Weld half of a 1/2" coupling over the hole on the outside of the bottom end plate.  Thread opening side should point downward, so as to turn onto the cyclone exit.  Make sure half coupler is "square" so the filter and cyclone will align straight.  Shown is the old design, using a 2" coupling.
• Weld the halved 1/2" couplers over the small holes on the side.  These are bungs for instrument access.   

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