Jain Steels Os-Lok/Win-Lok Tube fittings have been carefully designed and manufactured with continuous research and development backing to very stringent tolerances under rigid Quality Control procedures approved to ISO 9001-2000 quality management systems to provide zero leak, Torque free seal in instrumentation and process tubing.
Jain Steels Os-Lok/Win-Lok Tube fittings ensures maximum safety and reliability due to Tests carried out such as High pressure, impulse, vibration, vacuum, temperature, pull out and burst pressure.
TUBING SELECTIONS
Stainless steel 304 and 316 fully annealed seamless tubing according to standard ASTM A213 or ASTM A269 or equivalent, are suitable for use with Os-Lok/Win-Lok tube fittings.
The tubing should be compatible with the process fluid, pressure and temperature.
For good performance of Os-Lok/Win-Lok tube fittings, the tubing should be reasonably round, free from nicks, scratches, the surface finish should be good and tube ends are squarely cut and must be free from burrs.
The hardness of tubing as desired is 80Rb; the maximum allowed by ASTM is 90Rb.
TUBING DATA TABLES FOR FRACTIONAL SIZE : |
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Tubing O.D. |
WALL THICKNESS IN INCH |
|||||||
0.028 |
0.035 |
0.049 |
0.065 |
0.083 |
0.095 |
0.109 |
0.120 |
|
1/8 |
8600 |
10900 |
|
|
|
|
|
|
3/16 |
5500 |
7000 |
10300 |
|
|
|
|
|
1/4 |
4000 |
5100 |
7500 |
10300 |
|
|
|
|
5/16 |
|
4100 |
5900 |
8100 |
|
|
|
|
3/8 |
|
3300 |
4800 |
6600 |
|
|
|
|
1/2 |
|
2600 |
3700 |
5100 |
6700 |
|
|
|
5/8 |
|
|
3000 |
4000 |
5200 |
6100 |
|
|
3/4 |
|
|
2400 |
3300 |
4300 |
5000 |
5800 |
|
7/8 |
|
|
2100 |
2800 |
3600 |
4200 |
4900 |
|
1 |
|
|
|
2400 |
3200 |
3700 |
4200 |
4700 |
TUBING DATA TABLES FOR METRIC SIZE : |
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Tubing O.D. |
WALL THICKNESS IN MILLIMETER |
||||||||||||
0.5 |
0.6 |
0.7 |
0.8 |
1.0 |
1.2 |
1.5 |
1.6 |
1.8 |
2.0 |
2.2 |
2.5 |
3.0 |
|
3 |
497 |
607 |
718 |
828 |
1032 |
|
|
|
|
|
|
|
|
6 |
|
|
331 |
386 |
497 |
607 |
774 |
912 |
|
|
|
|
|
8 |
|
|
208 |
280 |
359 |
440 |
558 |
607 |
|
|
|
|
|
10 |
|
|
|
221 |
280 |
342 |
440 |
473 |
|
|
|
|
|
12 |
|
|
|
182 |
231 |
280 |
359 |
386 |
440 |
497 |
|
|
|
14 |
|
|
|
|
195 |
237 |
302 |
324 |
369 |
416 |
463 |
535 |
654 |
16 |
|
|
|
|
169 |
205 |
361 |
280 |
319 |
358 |
398 |
460 |
564 |
18 |
|
|
|
|
150 |
181 |
230 |
246 |
280 |
314 |
349 |
403 |
496 |
22 |
|
|
|
|
121 |
147 |
185 |
199 |
225 |
252 |
280 |
322 |
394 |
25 |
|
|
|
|
108 |
128 |
162 |
173 |
196 |
220 |
244 |
280 |
342 |
Note:
Working pressure (psig) for seamless tubing. Multiply pressure rating by 0.80 for single welded tubing. Multiply pressure rating by 0.85 for double welded tubing.
FACTORS USED TO DETERMINE ALLOWABLE PRESSURE AT HIGHER TEMPERATURES. |
||
°F |
°C |
A.I.S.I. 316 |
200 |
93 |
1 |
400 |
204 |
0.96 |
600 |
316 |
0.85 |
800 |
427 |
0.79 |
1000 |
538 |
0.76 |
1200 |
649 |
0.37 |
For Example :
The allowable pressure for type SS316, Size 1/4″OD x 0.035 wall at 600°F(316°C) would be equivalent to 5100 psi x 0.85 = 4335 psi.
GAS SERVICE
Extra care must be taken while selecting tubing for gas application, In order to achieve a gas-tight seal, ferrules in instruments fittings must seal any minor surface imperfections.
The thick walled tubing helps the ferrules to overcome minor surface imperfections
Jain Steels Corporation recommends the following minimum wall thickness of tubing for gas application
GAS APPLICATION TUBING
GAS APPLICATION TUBING |
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|
PIPE END NPT AND ISO PRESSURE RATINGS
Fitting that has both tube and pipe thread ends can have different pressure ratings. The pipe end pressure ratings chart given below for SS316 shows the pressure ratings for male and female pipe thread ends.
Working pressure is calculated on ANSI code for pressure piping B31.3 basis.
NPT/BSPT PIPE SIZE |
WORKING PRESSURE IN PSIG |
|||
MALE THREAD |
FEMALE THREAD |
|||
Straight Fittings |
Shape Fitting |
Straight Fittings |
Shape Fitting |
|
1/8″ |
9100 |
9100 |
6400 |
5500 |
¼” |
7500 |
7500 |
6600 |
5600 |
3/8″ |
7200 |
7200 |
5300 |
5000 |
½” |
6600 |
5800 |
5200 |
4500 |
¾” |
6400 |
6400 |
4300 |
3500 |
1″ |
4600 |
4600 |
4500 |
3900 |
SAE/MS PRESSURE RATINGS FOR SS316
Pressure ratings are from SAE J1926/3
SAE/MS THREAD SIZE |
Non Positionable |
Positionable |
PSIG |
PSIG |
|
5/16-24 |
4568 |
4568 |
7/16-20 |
4568 |
4568 |
1/2-20 |
4568 |
4568 |
9/16-18 |
4568 |
3626 |
3/4-16 |
4568 |
3626 |
7/8-14 |
3626 |
2900 |
1.1/16-12 |
3626 |
2900 |
1.3/16-12 |
2900 |
2320 |
1.5/16-12 |
2900 |
2320 |