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Technical Data

Diagnostic Instrumentation

Thread Size Chart

Dash Size Tube OD Pipe Thread O-ring Boss &
37° JIC Thread
ORFS Thread 45° SAE Thread Code 61 Flange Code 62 Flange
02 1/8 1/8-27 5/16-24 5/16-24
03 3/16 3/8-24 3/8-24
04 1/4 1/4-18 7/16-20 9/16-18 7/16-20
05 5/16 1/2-20 1/2-20
06 3/8 3/8-18 9/16-18 11/16-16 5/8-18
07 7/16 11/16-16
08 1/2 1/2-14 3/4-16 13/16-16 3/4-16 1.19 1.25
10 5/8 7/8-14 1-14 7/8-14
12 3/4 3/4-14 1 1/16-12 1 3/16-12 1 1/16-24 1.50 1.62
14 7/8 1 3/16-12
16 1 1-11 1/2 1 5/16-12 1 7/16-12 1.75 1.88
20 1 1/4 1 1/4-11 1/2 1 5/8-12 1 11/16-12 2.00 2.12
24 1 1/2 1 1/2-11 1/2 1 7/8-12 2-12 2.38 2.50
32 2 2-11 1/2 2 1/2-12 2.81 3.12

 

Dash Size Metric Threads
10 10×1.0
12 12×1.5
14 14×1.5
16 16×1.5
18 18×1.5
20 20×1.5
22 22×1.5
24 24×1.5
26 26×1.5
27 27×2.0
30 30×2.0
33 33×2.0
34 34×1.5
36 36×1.5
40 40×1.5
42 42×2.0
45 45×1.5
48 48×2.0
52 52×2.0
Dash Size BSPP/BSPT Threads
02 1/8-28
03
04 1/4-19
05
06 3/8-19
08 1/2-19
10
12 3/4-14
14
16 1-11
20 1 1/4-11
24 1 1/2-11
32 2-11

Torque Values: Why Wet Torque?

Wet torque is the practice of using hydraulic fluid to lubricate the threads and o-rings of the fittings before installation. Due to differences in materials, plating types, thickness, and thread quality of different components, the coefficient of friction varies greatly on any given assembly. Lubrication not only produces a more consistent coefficient of friction, it increases clamping force on sealing area with less torque on threads. Over tightening causes threads to yield, deform, and therefore lose their ability to maintain an adequate load or clamping force on the seating area. Extended operation and severe conditions cause further yielding which results in leaks. Failure to wet torque is to compromise consistency and quality for convenience. Use the lowest torque value from the chart when wet torquing.

Pipe Adapters (NPT)

Dash Size Turns Past Finger Tight
01 1.5-3.0
02 1.5-3.0
04 1.5-3.0
06 1.5-3.0
08 1.5-3.0
12 1.5-3.0
16 1.0-2.5
20 1.0-2.5
24 1.0-2.5
32 1.0-2.5

Pipe Swivel Adapters (NPT)

Dash Size Torque Foot/Lbs
02 13
04 20
06 25
08 47
12 84
16 129
20 152
24 152
32 300

O-Ring Boss Adapters (J514 & J1926/3)

Dash Size Straight Torque Foot/Lbs Adjustable Torque Foot/Lbs
02 6-7 6-8
03 6-9 6-8
04 9-15 8-10
05 14-19 9-12
06 18-24 12-16
08 27-43 20-30
10 36-48 30-36
12 65-75 44-54
14 75-99 53-70
16 85-123 59-80
20 115-161 75-100
24 125-170 105-125
32 180-240 140-180

O-Ring Boss Adapters (J1453 & J1926/2)

Dash Size Straight Stud Torque Foot/Lbs Adjustable Stud Torque Foot/Lbs
02 N/A N/A
03 8-10 N/A
04 14-16 11-13
05 18-20 14-16
06 24-26 18-21
08 40-60 28-38
10 55-80 44-60
12 95-135 65-95
14 105-190 75-125
16 120-220 85-150
20 160-280 115-170
24 175-360 125-225

 

JIC 37° Adapters

Dash Size Torque Foot/Lbs
02 6-7
03 6-9
04 9-12
05 14-15
06 18-20
08 27-39
10 36-63
12 65-88
14 75-103
16 85-113
20 115-133
24 175-360
32 190-258

ORFS Adapters

Dash Size Torque Foot/Lbs
04 10-12
06 18-20
08 32-35
10 45-50
12 65-70
16 92-100
20 125-140
24 150-165

Flange Adapters (Code 61 & 62)

Dash Size Code 61 Torque Foot/Lbs Code 62 Torque Foot/Lbs
08 15-19 15-19
12 20-29 25-33
16 27-35 41-50
20 35-46 62-75
24 46-58 116-133
32 53-67 200-217
40 80-91
48 137-150
56 116-133
64 116-133
80 116-133

 

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