TM 1-1500-204-23-2
NOTE
If fitting gap after assembly is less than 0.025 inch, back socket off until it rotates freely on hose, then
repeat paragraph (g).
(h)
Final assembly. Install opposite hose end fitting using paragraphs (d) through (g) above.
NOTE
If both fittings are elbow fittings, the relative position angle (index angle between fittings) must be set
before tightening to final gap.
(i)
Proof test. Proof test hose assembly as described in proof test procedures, paragraph 4-5i (12).
(11)
Setting position angle on elbow hose assemblies. Two methods may be used to establish the proper
position angle of fittings when an elbow fitting is used on both ends.
(a)
Method for standard elbow fittings. Standard elbow fittings are positioned as follows.
1
Establish base position Base position may be the top of a workbench or an elbow mounted
in a vise.
2
Position and measure position angle See figure 4-48, details F and G for proper reading of
position angles. While opposite fitting is still loose enough to swivel by hand, turn to required angle and measure using
an adjustable protractor or other suitable angle measuring advice.
3
Complete fitting assembly by mounting in vise to hold elbow or hose from turning while
tightening to required gap (see figure 4-48, detail H).
Table 4-22. Teflon Hose Cutoff Factors (in Inches)
MS swivel or fittings
MS flange fittings
A
B
C
D
E
F
Size
ST
45 degrees
90 degrees
ST
45 degrees
90 degrees
—3
1.40
2.16
1.72
—4
1.48
2.36
1 82
—5
1.54
2.44
1 94
—6
1.62
2.58
2.06
—8
1.86
3.58
2.62
2.54
2.50
2.42
—10
2.10
3.16
2.82
2.70
2.84
2.82
—12
2.26
4.10
3.84
3.10
3.89
3.84
—16Z
2.60
4.28
4.10
3.22
3.96
4.10
—20Z
2.88
4 84
4.68
3.38
4.44
4.68
4-64
