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SEALEXCEL Fine-lok/ Well-Lok
Tube fittings have been carefully designed and manufactured
with continuous research and development backing to very stringent
tolerances under rigid quality controlled procedures approved
to ISO 9001:2000 quality management systems to provide zero
leak, Torque free seal in instrumentation and process tubing.
SEALEXCEL Fine-lok/ Well-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. |
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| MATERIAL : |
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SEALEXCEL Fine-lok/ Well-Lok Tube fittings are available as standard stainless steel 316.
The raw materials used confirm to chemical requirements listed in specification below-
BAR STOCK : ASME -
SA - 479
TYPE 316 - SS
BS970 316 - S31
DIN 4401
ASTMA276,
TYPE 316
FORGINGS : ASME-SA-182
316
BS970 316-S31
DIN 4401
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| HEAT TRACEABILITY : |
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| Stainless steel 316 Tube fittings are heat code traceable back to the original mill heat from which it was made. |
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| PRESSURE RATING : |
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SEALEXCEL Fine-lok/ Well-Lok Tube fitting are rated for working pressure higher than the tubing recommended in tubing data table as shown below. However, tubing should not be used above its maximum allowed working pressure.
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| TUBING SELECTIONS: |
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Stainless steel 304 and 316 fully annealed seamless tubing according to standard ASTM A213 or ASTM A269 or equivalent, are suitable for use with Fine-lok/Well-Lok tube fittings.
The tubing should be compatible with the process fluid, pressure and temperature.
For good performance of Fine-lok/ Well-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.
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| TUBING DATA TABLES FOR INCH SIZE : |
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ALLOWABLE WORKING PRESSURE (PSI)
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Tubing O.D. (in Inch)
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WALL THICKNESS IN INCH
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| .028 |
.035 |
.049 |
.065 |
.083 |
.095 |
.109 |
.120 |
| 1/8 |
8600 |
10900 |
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| 3/16 |
5500 |
7000 |
10300 |
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| 1/4 | 4000 |
5100 |
7500 |
10300 |
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| 5/16 |
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4100 |
5900 |
8100 |
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| 3/8 |
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3300 |
4800 |
6600 |
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| 1/2 |
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2600 |
3700 |
5100 |
6700 |
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| 5/8 |
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3000 |
4000 |
5200 |
6100 |
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| 3/4
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2400 |
3300 |
4300 |
5000 |
5800 |
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7/8
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2100 |
2800 |
3600 |
4200 |
4900 |
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1
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2400 |
3200 |
3700 |
4200 |
4700 |
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| TUBING DATA TABLES FOR METRIC SIZE : |
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ALLOWABLE WORKING PRESSURE IN BAR
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Tubing O.D. (in mm)
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WALL THICKNESS IN MILLIMETER
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| 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 |
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3
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497 |
607 |
718 |
828 |
1032 |
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| 6 |
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331 |
386 |
497 |
607 |
774 |
912 |
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| 8 | |
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208 |
280 |
359 |
440 |
558 |
607 |
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10
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221 |
280 |
342 |
440 |
473 |
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12
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182 |
231 |
280 |
359 |
386 |
440 |
497 |
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14
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195 |
237 |
302 |
324 |
369 |
416 |
463 |
535 |
654 |
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16
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169 |
205 |
361 |
280 |
319 |
358 |
398 |
460 |
564 |
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18
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150 |
181 |
230 |
246 |
280 |
314 |
349 |
403 |
496 |
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22
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121 |
147 |
185 |
199 |
225 |
252 |
280 |
322 |
394 |
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25
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108 |
128 |
162 |
173 |
196 |
220 |
244 |
280 |
342 |
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GAS SERVICE : |
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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.
SEALEXCEL recommends the following minimum wall thickness of tubing for gas application.
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Tube OD
(Inches) |
Nominal minimum wall thickness
(Inches) |
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PIPE END NPT and ISO PRESSURE RATINGS : |
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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.
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| NPT/BSPT PIPE SIZE |
| MALE THREAD |
FEMALE THREAD |
| Straight Fittings |
Shape Fitting |
Straight Fittings |
Shape Fitting |
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SAE/MS pressure Ratings for SS316
Pressure ratings are from SAE J1926/3
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| SAE/MS THREAD SIZE |
| Non Positionable |
Positionable |
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CONSTRUCTION OF SEALEXCEL Fine-lok/Well-Lok Tube Fittings : |
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Fine-lok Tube Fittings consist of three precision component such as Nut, Single Ferrule and Body. |
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Inch Fine-lok Fittings |
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| Finger tight Fine-lok Tube Fittings |
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Assembled Fine-lok Tube Fittings after tightening the Nut 1 ¼ turn from the finger tight position |
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Metric Fine-lok Fittings |
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| Finger tight Fine-lok Tube Fittings |
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Assembled Fine-lok Tube Fittings after tightening the Nut 1 ¼ turn from the finger tight position |
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Well-Lok Tube Fittings consist of four precision component such as Nut, Back Ferrule, Front Ferrule and Body. |
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Inch Well-Lok Fittings |
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| Finger tight Well-Lok Tube Fittings |
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Assembled Well-Lok Tube Fittings after tightening the Nut 1 1/4 turn from the finger tight position |
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Metric Well-Lok Fittings |
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| Finger tight Well-Lok Tube Fittings |
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Assembled Well-Lok Tube Fittings after tightening the Nut 1 1/4 turn from the finger tight position |
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GAUGEABILITY : |
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SEALEXCEL Fine-lok/Well-Lok Tube Fittings are manufactured to very stringent tolerances to meet the Gaugeability to check the gap between Nut and Body Hex which ensures safety and reliability, this allows easy inspection for sufficient tightening of the Nut before a system is pressurized. |
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ORDERING INFORMATION : |
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HOW TO ORDER SEALEXCEL Fine-lok/Well-Lok Tube Fittings :
The part Number describes completely assembled fittings
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Example : For Well-Lok Inches size : MC-250-250-N-E |
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| Type of Fitting |
Tube OD |
Pipe Thread |
Type of Thread |
Material |
| Male Connector |
1/4" |
Size 1/4" |
NPT |
SS 316 |
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Example : For Fine-lok Metric size : SMC-6-250-RT-E |
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| Type of Fitting |
Tube OD |
Pipe Thread |
Type of Thread |
Material |
| Male Connector |
6 mm |
Size 1/4" |
BSPT |
SS 316 |
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| GAUGEABILITY : top |
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SIZE CODE DESCRIPTIVE : |
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SIZE CODE DESCRIPTIVE : |
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MATERIAL CODE DESCRIPTION : |
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| Description of Material |
Code |
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Viton ® is the registered trademark of Dupont
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PIPE THREAD INFORMATION : |
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SEALEXCEL pipe fittings are available with NPT (National Pipe Taper)
BSP/ISO (British Standard Pipe/International Standards Organisation) and SAE/MS straight thread.
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TAPERED THREADS : |
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| Specification (s) |
Type |
Part Number or Suffix Designation |
Sealing Method |
NPT
ANSI B1.20.1 |
M/F |
N |
Seal is made on the thread,
Thread sealant is required |
ISO 7/1
BS 21
JIS B0203
DIN 2999 |
M/F
M/F
M/F
Male |
RT |
Seal is made on the thread,
Thread sealant is required |
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PARALLEL THREADS : |
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| Specification (s) |
Type |
Part Number or Suffix Designation |
Sealing Method |
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