Sealing and thread of swage fittings

Sealing :

O-ring on male 24° cone inserted into 24° female cone.
Concerns light (DKOL) and heavy (DKOS) series metric fittings.

Connection :

Parallel metric thread, profile according to NFE-03-001 (identical to ISO 68-1), whose outer diameter is expressed in millimeters.
The profile of this thread is an equilateral triangle.
Metric threads are designated by the letter M, followed by their external diameter and pitch. Ex. : M12x1.5

Sealing :

60° male cone into 60° female cone.

Connection :

Parallel metric thread, profile according to NFE-03-001 (identical to ISO 68-1), whose outer diameter is expressed in millimeters.
The profile of this thread is an equilateral triangle.
Metric threads are designated by the letter M, followed by their external diameter and pitch. Ex. : M12x1.5

Sealing :

24° male cone into 24° female cone.

Connection :

parallel metric thread, profile according to NFE-03-001 (identical to ISO 68-1), whose outer diameter is expressed in millimeters.
The profile of this thread is an equilateral triangle.
Metric threads are designated by the letter M, followed by their external diameter and pitch. Ex. : M12x1.5

Sealing :

60° male cone into 60° female cone.

Connection :

parallel Whitworth thread according to BS 2779 (equivalent to French standard NFE 03-005), whose thread is expressed in threads per inch.
The profile of this thread is is an isosceles triangle with a flank angle of 55° and truncated top and bottom.
This thread inspired the French Gaz thread.

Sealing :

Compression of a joint between two machined flat surfaces.

Connection :

Parallel Whitworth thread according to BS 2779 (equivalent to French standard NFE 03-005), whose thread is expressed in threads per inch.
The profile of this thread is is an isosceles triangle with a flank angle of 55° and truncated top and bottom. (This thread inspired the French Gaz thread).

Sealing :

Mating of threads combined with sealing tape or liquid..

Connection :

Parallel Whitworth thread according to BS 21 (equivalent to NFE 03-004, EN 10226 and ISO 7), whose pitch is expressed in threads per inch.
The thread is machined to a 6.25% taper.
This system is widely used in France.

Sealing :

O-ring on 60° male cone into 60° female cone

Connection :

Parallel Whitworth thread according to BS 2779 (equivalent to French standard NFE 03-005), whose thread is expressed in threads per inch.
The profile of this thread is is an isosceles triangle with a flank angle of 55° and truncated top and bottom. (This thread inspired the French Gaz thread).

Sealing :

74° male cone on 74° female cone.

Connection :

Parallel normalised according to ASME B1.1 (ex-SELLERS) and ISO 263, whose external diameter is expressed in inch and its pitch in threads per inch.
The profile of this thread is an equilateral triangle.

Sealing :

By O-ring lodged in a groove machined into the collar.

Connection :

By one-piece or half-flanges fixed by bolts.

Swage fittings Flanges :

S/SD/SC811 - 3000 PSI SAE J518 flange straight
S/SD/SC812 - 3000 PSI SAE J518 flange 45° swept elbow
S/SD/SC813 - 3000 PSI SAE J518 flange 90° swept elbow

S/SD/SC861 - 6000 PSI SAE J518 flange straight
S/SD/SC862 - 6000 PSI SAE J518 flange 45° swept elbow
S/SD/SC863 - 6000 PSI SAE J518 flange 90° swept elbow

SD/SC881 - “SUPERCAT” flange straight
SD/SC882 - “SUPERCAT” flange 45° swept elbow
SD/SC883 - “SUPERCAT” flange 90° swept elbow

Sealing :

By compression of a joint lodged in a groove on a machined face against a flat seat.

Connection :

Parallel thread normalised according to ASME B1.1 (ex-SELLERS) and ISO 263, whose external diameter is expressed in inches and its pitch in threads per inch.
The profile of the thread is an equilateral triangle.
Dating back to the late 1980’s, this sealing arrangement was designed to eliminate leaks due to vibrations and various other constraints on earth-moving equipment.

Sealing :

Ensured by tight contact of male and female thread flanks (metal to metal) induced by tapered finish.

Connection :

Thread normalised according to ASME and ANSI B1.20.1 (in France NFE 03-601), tapered slope of 6.25%, for both male and female threads, usually expressed in inches and pitch in threads per inch.
The thread profile is that of an equilateral triangle with a peak angle of 60° and salient truncation (sometimes wrongly called Briggs).

Sealing :

parallel thread normalised according to ASME B1.1 (ex-SELLERS) and ISO 263, whose external diameter is expressed in inches and pitch in threads per inch.

Connection :

The thread profile is that of an equilateral triangle.
NOTE : SAE type fittings are only used up to dash size 12 inclusive.
Despite their close resemblance to JIC type, except for their sealing cone angle, dash sizes 6 and 12 are not common to the two systems.
Dash size 6 differs by diameter and pitch and dash size 12 by pitch.

SAE 90° cone
Circuit	1/16“	1/8“	3/16“	1/4“	5/16“	3/8“	7/16“	1/2“	5/8“	3/4“	7/8“	1“	1“1/4	1“1/2	1“3/4	2“	2“1/2	3“
Dash	1	2	3	4	5	6	7	8	10	12	14	16	20	24	28	32	40	48
Thread Size (pouce)			3/8“	7/16“	1/2“	5/8“		3/4“	7/8“	1“1/16
Thread family			UNF	UNF	UNF	UNF		UNF	UNF	UNS
Number of Threads per inch			24	20	20	18		16	14	14
Male Thread Outer Diameter (DE)(mm)			9,5	11,1	12,7	15,8		19	22,2	26,9
Thread Length (L) (mm)			11,1	13,9	14,6	15,8		19	22,2	25,4
Female thread inner diameter (DA) (mm)			8,3	9,7	11,3	14,3		17,3	20,2	24,9
Free Length (P) (mm)			8,6	8,3	9,5	10,6		13,4	14,6	14,6
Pitch (mm)			1,05	1,27	1,27	1,41		1,58	1,81	1,81

SAE inverted 90° cone type
Circuit	1/16“	1/8“	3/16“	1/4“	5/16“	3/8“	7/16“	1/2“	5/8“	3/4“	7/8“	1“	1“1/4	1“1/2	1“3/4	2“	2“1/2	3“
Dash	1	2	3	4	5	6	7	8	10	12	14	16	20	24	28	32	40	48
Thread Size (pouce)		5/16“	3/8“	7/16“	1/2“	5/8“	11/16“	3/4“	7/8“	1“1/16
Number of Threads per inch		28	24	24	20	18	18	18	18	16
Male Thread Outer Diameter (DE)(mm)		7,9	9,5	11,1	12,7	15,8	17,4	19	22,2	26,9
Thread Length (L) (mm)		8,1	9,1	9,1	10,1	10,1	11,2	11,7	12,2	13,7
Female thread inner diameter (DA) (mm)		6,9	8,4	9,9	11,3	14,3	15,9	17,5	20,7	25,3
Free Length (P) (mm)		4,7	5,1	5,1	5,9	6,7	7,5	7,9	8,33	9,1
Pitch (mm)		0,9	1,05	1,05	1,27	1,41	1,41	1,41	1,41	1,58
Swage fittings S.A.E 90° cone: S131 - Male S.A.E 90° cone S221 - Female S.A.E 90° cone S222 - Female SAE 90° cone 45° swept elbow S223 - Female SAE 90° cone 90° swept elbow

Sealing :

Parallel thread normalised according to ASME B1.1 (ex-SELLERS) and ISO 263, whose external diameter is expressed in inches and pitch in threads per inch.

Connection :

The thread profile is that of an equilateral triangle.
NOTE : SAE type fittings are only used up to dash size 12 inclusive.
Despite their close resemblance to JIC type, except for their sealing cone angle, dash sizes 6 and 12 are not common to the two systems.
Dash size 6 differs by diameter and pitch and dash size 12 by pitch.

Sealing :

60° male cone on 60° female cone.

Connection :

parallel Whitworth thread according to BS 5200 (French equivalent NFE 03-005) whose pitch is expressed in threads per inch.
The thread profile is that of an isosceles triangle with 55° angle crest and rounded truncation.
NOTE : A resemblance can be noted with JIC and SAE types.
The metric JIS type uses the same sealing arrangement but with a metric thread.

Sealing :

By flat joint each side of banjo.
Connection :
By metric or imperial threaded hollow bolt

Swage fittings Banjo :

S921 - B.S.P banjo
S941 - Metric banjo

Sealing :

By compression of a ring on the tube into a female 24° cone.
Connection : ISO profile parallel metric thread.

Swage fittings Stand-pipe :

S511 - Metric Stand-Pipe
S512 - Metric Stand-Pipe 45° swept elbow
S513 - Metric Stand-Pipe 90° swept elbow
S521 - French Gaz Stand-Pipe