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| Heyco® Liquid Tight Fittings Torque Chart |
| Thread Size |
Fitting
(description) |
Heyco
P/Ns |
Locknut
Torque |
Sealing Nut
Torque |
| PG 7 |
RLTF 7
LTF 7
flex RLTF 7
flex LTF 7 |
3444, 3445
3207, 3208
3464, 3465
3237, 3238 |
35 in. lbs. |
25 in. lbs. |
| PG 9 |
RLTF 9
LTF 9
flex RLTF 9
flex LTF 9 |
3446, 3447
3210, 3211
3466, 3467
3240, 3241 |
40 in. lbs. |
40 in. lbs. |
| PG 11 |
RLTF 11
LTF 11
flex RLTF 11
flex LTF 11 |
3448, 3449
3213, 3214
3468, 3469
3243, 3244 |
45 in. lbs. |
65 in. lbs. |
| PG 13.5 |
LTF 13.5
flex LTF 13.5 |
3216, 3217
3246, 3247 |
80 in. lbs. |
80 in. lbs. |
| PG 16 |
LTF 16
flex LTF 16 |
3219, 3220
3249, 3250 |
124 in. lbs. |
120 in. lbs. |
| PG 21 |
RLTF 21
LTF 21
flex RLTF 21
flex LTF 21 |
3454, 3455
3222, 3223
3478, 3479
3245, 3248 |
169 in. lbs. |
130 in. lbs. |
| PG 29 |
LTF 29 |
3225, 3226 |
225 in. lbs. |
275 in. lbs. |
| 3/8" NPT |
RLTF 3/8
LTF 3/8
flex RLTF 3/8
flex LTF 3/8 |
3458, 3459
3228, 3229
3474, 3475
3254, 3255 |
40 in. lbs. |
40 in. lbs. |
| 1/2" NPT |
LTF 1/2
flex LTF 1/2 |
3231, 3232
3251, 3252 |
80 in. lbs. |
80 in. lbs. |
| 1/2" NPT |
LLTF 1/2
flex LLTF 1/2 |
3200, 3201
3266, 3267 |
124 in. lbs. |
120 in. lbs. |
| 3/4" NPT |
RLTF 3/4
LTF 3/4
flex RLTF 3/4
flex LTF 3/4 |
3460, 3461
3234, 3235
3462, 3463
3239, 3242 |
169 in. lbs. |
130 in. lbs. |
| 1" NPT |
RLTF 1
LTF 1 |
8439, 8440
8437, 8438 |
200 - 225 in. lbs. |
225 - 250 in. lbs. |
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