Bite-Lok Tube Fittings catalog download
SEALEXCEL® Bite-Lok® Flareless 
Bite Type Tube Fittings are
designed according to DIN 2353
and manufactured under rigid
quality control procedure approved
to ISO 9001:2008 and tested
according to extensive testing
procedure BS4368 part IV
Bite-Lok Tube Fittings
Bite-Lok Tube Fittings
HEAT TRACEABILITY
SEALEXCEL® Bite-Lok® stainless
steel Tube Fittings are heat code
traceable back to the original mill
heat from which it was made.

PRESSURE RATING
BUNA-N :-35º C to 100º C
FPM (VITON)®: -25º C to 200º C

MATERIAL
Available as standard in material  stainless steel.

Bite-Lok Tube Fittings catalog
BITE-LOK
TUBE FITTINGS
PDF CATALOG
Bite-Lok Tube Fittings catalog downloadBite-Lok Tube Fittings catalog download
GENERAL INFORMATION
SEALEXCEL® Bite-Lok® Tube Fittings
are suitable for use at the following
nominal pressure.
Stainless Steel : up to 400ºC
Caution : For higher temperatures,
reduction in pressures should be
taken in to account

TEMPERATURE RATING

FOR SEAL MATERIAL
STUDS AND PORT FORMS
Metric ISO Thread : DIN 3852, Part 1
BSP Thread            : DIN 3852, Part 2

TIGHTENING TORQUES FOR STUDS
Metric ISO Thread : DIN 3852, Part 1
BSP Thread            : DIN 3852, Part 2

INSTALLATION INSTRUCTIONS
Assembly In Hardened
Pre-Assembly Body.
general information
general information
GENERAL INFORMATION
pneumatic applications
PNEUMATIC
APPLICATIONS
hydraulic applications
HYDRAULIC
APPLICATIONS
Instrumentation applications
INSTRUMENTATION APPLICATIONS
DESIGN
SEALEXCEL has designed the Bite
Ring very carefully with proper
consideration having twin Biting
edges to have firm and safe gripping
on tubing to provide leak free
connection of tube and components
in fluid systems.
FUNCTION
As the Bite-Lok® Tube Fittings Nut
tightened, the Bite Ring moves
towards the surface of the tube and
the front Biting edge 'A' of the Bite
Ring starts Biting tube

TUBING SELECTION
We recommend stainless steel cold
drawn fully annealed seamless
tubing to DIN 17458 or equivalent
and provide tolerances to DIN 2391
part 1


37 Flare Tube FIttings

Tube FIttings as per DIN 2353

Precision Pipe Fittings

Quick Connect Couplings

Ball Valves

Swivel Joints

Ball Valves

SS Push in Fittings

SS Push on Fittings

Push on Fittings

Check Valves

Ball Valves

Flow Control Regulators

Ball Valves

Quick Exhaust Valves

Ball Valves

Quick Connect Couplings

Ball Valves

Tube Fittings

Manufacturer of Well-Lok Tube Fittings

Precision Pipe Fittings

Precision Pipe Fittings

Ball Valves

Ball Valves

Ball Valves (High Pressure)

Ball Valves

Three Way Ball Valves

Ball Valves

Needle Valves

Ball Valves

Rising Stem Plug Valves

Ball Valves

Gauge/Root Valves

Ball Valves

Purge Valves

Ball Valves

Bleed Valves

Ball Valves

Toggle Valves

Ball Valves

Check Valves

Ball Valves

Manifold Valves

Ball Valves

Monoflange Valves

Monoflange Valves

Integral Block Bleed Valves

INTEGRAL BLOCK & BLEED VALVES

Micron In-Line Filters

Ball Valves
Bite-Lok Tube Fittings As per DIN 2353

TUBING SELECTION
We recommend stainless steel cold drawn fully annealed seamless tubing to DIN 17458 or equivalent and provide tolerances to DIN 2391 part 1

TUBE

O.D.

Tolerance

Wall

Thickness

Weight

Calculated pressure

DIN 2413

mm

mm

mm

kg/m

I

Bar

III

Bar

6

±0.1

1

0.125

372

357

6

1.5

0.168

526

505

6

2

0.200

662

636

6

2.25

0.211

725

696

8

±0.1

1

0.175

347

277

8

1.5

0.244

412

396

8

2

0.300

526

505

8

2.25

0.344

630

604

10

±0.1

1

0.255

294

238

10

1.5

0.319

357

343

10

2

0.401

458

439

10

2.25

0.469

551

529

10

3

0.525

638

612

12

±0.08

1

0.275

245

201

12

1.5

0.394

368

291

12

2

0.501

391

376

12

2.25

0.594

474

455

12

3

0.615

551

529

12

3.5

0.744

624

599

15

±0.08

1.5

0.507

294

238

15

2

0.651

321

309

15

2.25

0.782

391

376

15

3

0.901

458

439

16

±0.08

2

0.701

368

291

16

2.25

0.845

370

355

16

3

0.977

433

416

18

±0.08

1.5

0.620

245

201

18

2

0.801

327

262

18

2.25

0.967

333

320

18

3

1.126

391

376

 

 

Note : Parallel sleeves are recommended where thin walled tube are subject to serve strains.
The following tube wall thickness are recommended with stainless steel Bite-Lok® Tube Fittings

TUBE

O.D.

Tolerance

Wall

Thickness

Weight

Calculated pressure

DIN 2413

mm

mm

mm

kg/m

I

Bar

III

Bar

20

±0.08

2.5

1.095

368

291

20

3

1.277

357

343

20

3.5

1.443

408

392

20

4

1.600

458

439

22

±0.08

2

1.002

267

218

22

2.5

1.220

334

267

22

3

1.426

328

315

25

±0.08

2

1.152

235

193

25

2.5

1.408

294

238

25

3

1.635

353

281

25

4

2.092

378

363

25

4.5

2.307

418

402

25

5

2.501

458

439

28

±0.08

2

1.302

210

174

28

2.5

1.594

263

214

28

3

1.874

315

253

28

4

2.402

342

328

28

5

2.876

415

399

30

±0.08

3

2.028

294

238

30

4

2.605

321

309

30

5

3.400

391

376

35

±0.15

2

1.644

168

141

35

2.5

2.018

210

174

35

3

2.392

252

206

35

4

3.086

336

269

35

5

3.742

342

328

35

6

4.351

401

385

38

±0.15

4

3.405

309

249

38

5

4.131

318

305

38

6

4.807

373

358

38

7

5.426

427

410

42

±0.2

3

2.930

210

174

42

4

3.798

280

227

 

 

 

Calculated pressures to DIN 2413, scope of application I,
for primarily static load conditions at temperatures up to 120ºC.
YIELD POINT/RP1.0                              :225N/mm2  (to DIN 17458)
DESIGN FACTOR                                  :1.5
ALLOWANCE FACTOR C1                   :10% of wall thickness
ALLOWANCE FACTOR C2                   :0 (no allowance for corrosion)
For a diameter ratio of u = OD/ID>1.35,
calculation made to DIN 2413/III and based on a pulsating
fatigue limit of 225 N/mm2.

Calculated pressures to DIN 2413, scope of application III,
for pulsating load conditions at temperatures up to 120ºC.
PULSATING FATIGUE LIMIT             :216 N/mm2 (assumed value)
ALLOWANCE FACTOR C1                  :10% of wall thickness
Calculated pressures to DIN 2413, scope of application I,
for primarily static load conditions at temperatures up to 120ºC.
YIELD POINT/RP1.0     :225N/mm2  (to DIN 17458)
DESIGN FACTOR    :1.5
ALLOWANCE FACTOR C1   :10% of wall thickness
ALLOWANCE FACTOR C2   :0 (no allowance for corrosion)
For a diameter ratio of u = OD/ID>1.35,
calculation made to DIN 2413/III and based on a pulsating
fatigue limit of 225 N/mm2.

Calculated pressures to DIN 2413, scope of application III,
for pulsating load conditions at temperatures up to 120ºC.
PULSATING FATIGUE LIMIT   :216 N/mm2 (assumed value)
ALLOWANCE FACTOR C1    :10% of wall thickness
Sealexcel India pvt.ltd.
High Performance Fittings & Valves
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Corporate ID No. U29120MH1993PTC070627
D & B D-U-N-S® Number: 91-842-0055
Copyright © Sealexcel India Private Limited,
All Rights Reserved - 2017
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Bite-Lok Tube Fittings
Bite-Lok Tube Fittings
As per DIN 2353
Pressure Rating : Up to 250 bar
Temperature Rating : Up to 400º C
Bite-Lok Tube Fittings
Copyright © Sealexcel India Private Limited, All Rights Reserved - 2017
Bite-Lok Tube Fittings
Corporate ID No. U29120MH1993PTC070627
D & B D-U-N-S® Number: 91-842-0055
Bite-Lok Tube Fittings
Sealexce Mobile App
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