sitrex BR 2030/6, Assembly Instructions Manual

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6
Installation of adjustable fittings in straight thread O-ring bosses
1. Lubricate the O-ring by coating it with a light oil or petroleum. Install the O-ring in the groove ad-
jacent to the metal backup washer which is assembled at the extreme end of the groove (4).
2. Install the fitting into the SAE straight thread boss until the metal backup washer contacts the face of the
boss (5).
Do not over tighten and distort the metal backup washer.
3. Position the fitting by turning out (counterclockwise) up to a maximum of one turn. Holding the pad of
the fitting with a wrench, tighten the locknut and washer against the face of the boss (6).
SAE
dash
size
UN/UNF
thread size
Metric tube
OD (mm)
Inch tube
OD (mm)
Swivel nut torque
N·m (lb ft) ± 10%
2 5/16-24
–
3.18 8.25 (6.1)
3 3/8-24
–
4.76 11.5 (8.5)
4 7/16-20 6 6.35 15.5 (11.4)
5 1/2-20 8 7.94 20 (14.8)
6 9/16-18 10 9.52 25 (18.4)
8 3/4-16 12 12.7 52 (38.4)
10 7/8-14 16 15.88 81 (59.7)
12 1-1/16-12 20 19.05 112 (82.6)
14 1-3/16-12
–
22.22 133 (98.1)
16 1-5/16-12 25 25.4 155 (114.3)
20 1-5/8-12 30/32 31.75 180 (132.8)
24 1-7/8-12 38 38.1 225 (166)
32 2-1/2-12 50 50.8 348 (256.7)
1.6.1