Hydraulic Fitting Information; Hydraulic Tapered Pipe Fitting (Npt) Torque Chart; Hydraulic Tapered Seat Fitting (Jic) Torque Chart; Hydraulic O--Ring Fitting Torque - Tennant ATLV 4300 Service Manual

HYDRAULIC TAPERED PIPE FITTING (NPT)
TORQUE CHART
NOTE: Ratings listed are when using teflon
thread seal.
Size Minimum
Torque
1/4 NPT 10 ft lb (14 Nm)
1/2 NPT 25 ft lb (34 Nm)
3/4 NPT 50 ft lb (68 Nm)
HYDRAULIC TAPERED SEAT FITTING (JIC)
TORQUE CHART
Tibe O.D. Thread Size
(in)
0.25 0.44--20
0.38 0.56--18
0.50 0.75--16
0.62 0.88--14
0.75 1.12--12
1.0 1.31--12
ATLV 4300 330495 (6- -01)

HYDRAULIC FITTING INFORMATION

Maximum
Torque
30 ft lb (41 Nm)
50 ft lb (68 Nm)
100 ft lb (136
Nm)
Maximum
Torque
9 ft lb (12 Nm)
20 ft lb (27 Nm)
30 ft lb (41 Nm)
40 ft lb (54 Nm)
70 ft lb (95 Nm)
90 ft lb (122 Nm)
GENERAL INFORMATION
HYDRAULIC O- -RING FITTING TORQUE

CHART

Tube Thread Minimum
O.D. Size Torque
(in)
0.25 0.44--20 6 ft lb (8 Nm)
0.38 0.56--18 13 ft lb
(18 Nm)
*10 ft lb
(14 Nm)
0.50 0.75--16 20 ft lb
(27 Nm)
*21 ft lb
(28 Nm)
0.62 0.88--14 25 ft lb
(34 Nm)
0.75 1.12--12 45 ft lb
(61 Nm)
1.0 1.31--12 60 ft lb
(81 Nm)
NOTE: Do not use sealant on o- -ring threads.
*Aluminum bodied components
Maximum
Torque
9 ft lb
(12 Nm)
20 ft lb
(27 Nm)
12 ft lb
(16 Nm)
30 ft lb
(41 Nm)
24 ft lb
(33 Nm)
40 ft lb
(54 Nm)
70 ft lb
(95 Nm)
90 ft lb
(122 Nm)
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