1. Valve stem “gag” mechanism
Valve stem “gag” mechanism. Same device will be used to clamp onto pipe cap, except the 2 bolts on top will be used to attach additional weight plates.

2. Clamp 4” Hole to clamp on to 1” pipe cap 5” Through holes for 3/8”
bolts 1”
Through holes for 3/8” -bolts

3. Half-Inch Weight Plate (1)4” 5”
Through holes
for 3/8”
bolts
0.5

4. One-Inch Weight Plate (3)4” 5”
Through holes
for 3/8”
bolts 1”

5. Assembly
All parts will be assembled with 3/8” bolts (Grade 5 or better) and nuts. (Holes do not need to be tapped)
Make parts from A36 steel