Introduction Burner and Cold Blast Gate Valves HO Scale

Burner and Cold Blast Gate
Valves HO Scale Crank arm
Valve side
Introduction
This laser cut multimedia kit makes HO scale model
Flange
Covers
gate valves for the gas burners and cold blast main of the
Walthers Blast Furnace model. The 4 smaller gate valves are
designed to fit the gas burner pipes, one is an extra to use as
you see fit. The 3 larger valves are sized to fit 1/2 inch tube for
use on the cold blast main. Since the kit does not include cold
blast pipes, the builder must provide them.
Pipe
Flanges
Body
Flange
Kit Contents:
1 each inch laser cut resin impregnated paper
1 each 1/16th inch laser cut acrylic sheet
2.0 inch piece of 0.060 inch styrene (Plastruct MR-60)
1.0 inch piece of 1/8th plastic tubing (Plastruct TB-4)
1 piece 0.010 inch phosphor bronze wire
Recommended Tools and Supplies
Hobby Knife
Plastruct Bondene Glue
White or yellow carpenter glue
Superglue (CAA) or 5 minute epoxy
Valve body
Figure 2: Gate Valve layered
parts
0.010 inch
wire
Assembly Sequence
It is best to assemble the valves right on the pipes where they
will go, or to use a scrap piece to line up all the components. Both the gas burner gate valves and the 1/2 inch cold blast
gate valves assemble in a similar manner, just that the cold
gate blast valves are bigger.
The gas burner gate valves should slip over the fat pipe on
the gas burners, see figure 1. Make sure you assemble the
Walthers kit gas burner pipes so that they remain round and
1/8th inch
tube and
0.060 inch
rid
to the valve sides. Make
sure the 0.010 inch center
hole of the motor drive
is aligned. Next add the
cranks arms, one to each
side. You can use a small
piece of 0.015 inch wire to
line up all the parts. Trim
any excess wire.
Now slide the body flange
over the valve body so it is
snug against the bottom
of the valve sides.
Glue on the pipe flanges
making sure they are
aligned with the opening for
the pipe.
Figure 3 shows the assembled valve
prior to detailing.
Cut a small section of 0.060 inch rod for
the drive wheel shaft. Insert the rod into a
section of a 1/8 inch plastic pipe to make
a drive motor. Add the laser cut wheel as
shown in figure 3. Glue it to the valve
Figure 3: Gate Valve body as shown. Add a section a 0.010
assembly and final
inch wire to the upright section of the
details
valve body as shown in figure 4.
Optional, drill two small 0.015 holes in the bottom of the valves
to represent cooling lines as shown in the figure 4.
The kit includes two 1/2 inch pipe flange covers and an extra gas
burner valve. Use them as you see fit.
Figure 1: Suggested location for
gas burner valves
not pinched ovals.
To assemble each valve, first glue the body flanges together
with rivet detail facing out using white glue or yellow carpenter
glue as in figure 2. The white glue will give you some time to
make sure the parts are properly aligned. Test fit the parts to
insure that they will fit over the valve body. Next glue the valve side details to the valve body. CAA works
well for this joint. Next glue the drive mechanism flange covers
Figure 4: Complete Gate Valve assembly