Maximum Operating Pressure For Adapters and Fittings

Recommended maximum working pressures are based on limited laboratory test data and intended only as approximate guidelines, based on a 4:1 safety factor relative to the connection minimum burst pressure. Testing was conducted at SAE recommended assembly torque in hardened test blocks. The maximum pressure for any adapter or tube fitting must be lower of the chosen mating end types. Pressure ratings must be adjusted for any change in adapter material.

Dash Size	Nominal Tube/Pipe Size	SAE 100R2	National Pipe Tapered Fuel (NPTF)		National Pipe Straight Mechanical (NPSM)	JIC 37° Flare Hydraulic SAE J514	Flareless Compression
Dash Size	Nominal Tube/Pipe Size	SAE 100R2	Rigid/Fixed	Straight Thread	Rigid/Fixed	Adjustable & Female Swivel	Flareless Compression
-2	1/8"		5000	5000	5000	5000
-4	1/4"	5000	4000	5000	5000	4500	6000
-5	5/16"	4250			5000	4000
-6	3/8"	4000	3000	4000	5000	4000	6000
-8	1/2"	3500	3000	3500	4500	4000	6000
-10	5/8"	2750			3500	3000	5000
-12	3/4"	2250	2500	2250	3500	3000	4500
-14	7/8"	2000			3050	2500
-16	1"	2000	2000	2000	3050	2500	4000
-20	1-1/4"	1625	1150	1625	2500	2000
-24	1-1/2"	1250	1000	1250	2000	1500
-32	2"	1125	1000	1125	1500	1150

All pressure ratings are shown in pounds per square inch (psi).

D ash Size	Nominal Tube/Port Size	SAE 100R2	O-Ring Face Seal (ORFS) SAE J1453		BSP (BSPT / BSPP)	Code 61 Flange SAE J518	Code 62 Flange SAE J518
D ash Size	Nominal Tube/Port Size	SAE 100R2	Fixed	Adjustable	BSP (BSPT / BSPP)	Code 61 Flange SAE J518	Code 62 Flange SAE J518
-2	1/8"				5145
-4	1/4"	5000	6000	6000	6500
-5	5/16"	4250	6000	6000
-6	3/8"	4000	6000	6000	5500
-8	1/2"	3500	6000	6000	4500	5000	6000
-10	5/8"	2750	6000	6000	4000
-12	3/4"	2250	6000	6000	3500	5000	6000
-14	7/8"	2000	6000	6000
-16	1"	2000	6000	5000	3000	5000	6000
-20	1-1/4"	1625	4000	4000	2500	4000	6000
-24	1-1/2"	1250	4000	3000	2000	3000	6000
-32	2"	1125			2000	3000	6000
-40	2-1/2"					2500
-48	3"					2000
-56	3-1/2"					500
-64	4"					500

Metric Compression Tube Fittings

Nominal Tube O.D.	DIN 2353 LL Extra Light Series		DIN 2353 L Light Series		DIN 2353 S Heavy Series
Nominal Tube O.D.	Thread	MWP	Thread	MWP	Thread	MWP
4 mm	M8x1.0	1500
6 mm	M10x1.0	1500	M12x1.5	3750	M14x1.5	9450
8 mm	M12x1.0	1500	M14x1.5	3750	M16x1.5	9450
10 mm	M14x1.0	1500	M16x1.5	3750	M18x1.5	9450
12 mm	M16x1.0	1500	M18x1.5	3750	M20x1.5	9450
14 mm					M22x1.5	9450
15 mm			M22x1.5	3750
16 mm					M24x1.5	6000
18 mm			M26x1.5	2400
20 mm					M30x2.0	6000
22 mm			M30x2.0	2400
25 mm					M36x2.0	6000
28 mm			M36x2.0	1500
30 mm					M42x2.0	3750
35 mm			M45x2.0	1500
38 mm					M52x2.0	3750
42 mm			M52x2.0	1500