Case 580SN - Page 55

INTRODUCTION
TorquesforBritishStandardPipeParallel(BSPP)straight-pipe-threadportconnections
MetricTubeOD
FerrousNon-Ferrous
BSPP
Thread
S-Series
(HeavyDuty)
L-Series
(LightDuty)
S-Series
(HeavyDuty)
L-Series
(LightDuty)
S-Series
(HeavyDuty)
L-Series
(LightDuty)
G1/8A
—
6mm
—
21N·m
(15.5lbft)
—
12.5N·m
(9.2lbft)
6mm8mm
G1/4A
8mm10mm
63N·m
(46.5lbft)
53N·m
(39.1lbft)
38N·m
(28.0lbft)
32N·m
(23.6lbft)
10mm
G3/8A
12mm
12mm
95N·m
(70.1lbft)
84N·m
(62.0lbft)
57N·m
(42.0lbft)
50N·m
(36.9lbft)
15mm
G1/2A
16mm
18mm
136N·m
(100.3lbft)
105N·m
(77.4lbft)
82N·m
(60.5lbft)
63N·m
(46.5lbft)
G3/4A
20mm22mm
210N·m
(154.9lbft)
210N·m
(154.9lbft)
126N·m
(92.9lbft)
126N·m
(92.9lbft)
G1A
25mm28mm
400N·m
(295.0lbft)
400N·m
(295.0lbft)
240N·m
(177.0lbft)
240N·m
(177.0lbft)
G1-1/4A
30mm35mm
525N·m
(387.2lbft)
525N·m
(387.2lbft)
315N·m
(232.3lbft)
315N·m
(232.3lbft)
G1-1/2A
38mm42mm
660N·m
(486.8lbft)
660N·m
(486.8lbft)
396N·m
(292.1lbft)
396N·m
(292.1lbft)
NOTE:Finaltorquetoleranceis+/–10%ofthegiventorquespecication.
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