Ordering Information

The part Number describes completely assembled Fine-Lok™ / Well-Lok™ Tube Fittings.
Eg. For Fine-Lok Tube Fittings Metric Size: SMC-6-250RT/E
SMC 6 250 RT E
Type Of Fittings Tube OD Pipe Thread Size Type of Thread Material
Male Connector 6 mm 1/4” BSPT SS316
Eg. For Well-Lok Tube Fittings Inch Size: MC-250-250N-E
MC 250 250 N E
Type Of Fittings Tube OD Pipe Thread Size Type of Thread Material
Male Connector 1/4” 1/4” NPT SS316

TUBE OD SIZE CODE DESCRIPTION - FRACTIONAL

FRACTIONAL
SIZE CODE SIZE CODE
1/8 125 1/2 500
3/16 187 5/8 625
1/4 250 3/4 750
5/16 312 7/8 875
3/8 375 1 1000

TUBE OD SIZE CODE DESCRIPTION - METRIC

METRIC
SIZE CODE SIZE CODE
3 MM 3 15 MM 15
4 MM 4 16 MM 16
6 MM 6 18 MM 18
8 MM 8 20 MM 20
10 MM 10 22 MM 22
12 MM 12 25 MM 25
14 MM 14 - -

PIPE THREAD SIZE CODE DESCRIPTION:

Fractional
SIZE CODE SIZE CODE
1/8 125 5/8 625
1/4 250 3/4 750
3/8 375 7/8 875
7/16 437 1 1000
1/2 500 1-1/16 1062
9/16 562 1-5/16 1312

MATERIAL CODE DESCRIPTION:

MATERIAL CODE
SS316 E
SS316L EL
‘O’ Ring Viton® V
‘O’ Ring Buna N
Viton® is the registered trademark of Dupont

Pipe Thread Information

SEALEXCEL pipe fittings are available with NPT (National Pipe Taper)
BSP/ISO (British Standard Pipe/International Standards Organisation) and SAE/MS straight thread.

TAPERED THREADS :

Specification (S) Type Thread 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 Male RT Seal is made on the thread, Thread sealant is required

TAPERED THREADS :

Specification (S) Type Thread Designation Sealing Method
ISO 228/1, BS 2779, JIS B0202 MALE RP Metal-to Metal Sealing to DIN 3852, Form B.
ISO 228/1, BS 2779, JIS B0202 MALE RS Utilizes a washer to provide sealing Reference DIN 3852,Form A
ISO 228/1, BS 2779, JIS B0202 FEMALE RG Sealing Form meets DIN 3852, Form Y
BS2779 ISO 228/1, With Elastomeric Sealing MALE EO Sealing Form meets DIN 3852, Part2 Form E.
ASME B1.1 MALE SE Sealing with ‘O’ Ring