Instruction Manual
D103172X012
TBX Valve
May 2014
12
Table 3. AF Nozzle Specifications
NOZZLE TYPE
PLUG TRAVEL, INCHES
AF7
0.014
AF10
0.028
AF14
0.029
AF17
0.034
AF20
0.036
AF24
0.042
AF28
0.048
AF32
0.056
AF35
0.065
AF40
0.063
AF44
0.069
13. Inspect nozzle threads for damage and clean if needed. If damage is present, nozzle replacement will be
necessary.
14. Rinse both the nozzle (key 30) and nozzle sleeve (key 37) to remove particulate.
15. Screw nozzle into the nozzle sleeve (key 37) and tighten just until the spray head is flat and tight against the nozzle
sleeve.
16. Tack
weld a small piece of welding wire onto the nozzle sleeve (key 37) next to either of the spray head flats to
prevent rotation during service; refer to figure 4. Maintain low heat to prevent distortion of the nozzle.
Figure 4. Spray Nozzle Tack Weld Location
AF NOZZLE BODY
WIRE, TACK WELD ON BOTH ENDS
GA26453
17. Reassemble in the following order: nozzle sleeve gasket (key 47), nozzle body flange gasket (key 48), spray
nozzle/sleeve assembly (key 30 and 37), nozzle body flange (key 20), washers (key 59), and stud nuts (key 58). It is
required to replace the nozzle sleeve gasket (key 47) and nozzle body flange gasket (key 48) with new gaskets each
time the nozzle body flange (key 20) is removed.
18. Lubricate the nozzle body studs (key 57) and all surfaces the studs and nuts come into contact with. Tighten the
nozzle body flange nuts (key 58) in a uniform, multistage cross pattern. You may need to torque multiple times at
each torque to ensure that the nozzle body flange is torqued evenly. Required nozzle body flange stud torque can
be found in table 4.
Note
Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy
comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.
