When you buy hydraulic fittings from SINOPULSE or other suppliers in China, it is inevitable to figure out the sequence code of hydraulic fittings. This hydraulic fitting code explanation is your best guide to understanding the code.

ID	Meaning	Options	Explanation	Example
A (First Digit)	Connection Port Type	1	Male Thread	e.g. 16711
		2	Female Thread	e.g. 24211
		3	T-type Female
		4	Welding	e.g. 40011
		5	Metric Compression	e.g. 50091
		6	MT	e.g. 16711
		7	Banjo	e.g. 70011
		8	Flange	e.g. 87993
		9	Double Connector	e.g. 90011
B (Second Digit)	Thread Type	0	DIN Metric	e.g. 20111
		1	NPSM	e.g. 21611
		2	BSPP	e.g. 21611
		3	BSPT	e.g. 13011
		4	ORFS	e.g. 24211
		5	NPT	e.g. 15611RW
		6	JIC	e.g. 26711
		7	SAE	____
		8	JIS Metric	e.g. 18611
		9	JIS BSPP	e.g. 29611D
C (Third Digit)	Seal Type	1	O-Ring Seal	____
		2	Multiseal without washer	_____
		3	Multiseal with washer / 3000Psi (Flange)	_____
		4	Metric 24° Cone L.T.	e.g. 20491
		5	Metric 24° Cone H.T.	e.g. 20591
		6	60° Cone Metal Face / 6000Psi (Flange)	e.g. 28611D
		7	74° Cone Metal Face (JIC)	e.g. 26791
		8	90° cone (America)
		9	9000Psi (Flange connection port)	e.g. 87911
D (Fourth Digit)	Elbow Angle	1	Straight	e.g. 87911
		3	30° angle	----
		4	45° angle	e.g. 20741
		9	90° angle	e.g. 28691D
E (Fifth (Last) Digit)	Tail Type	1	Braided Reinforced Hose	e.g. 28691D
		2	Spiraled Reinforced Hose	----
		3	Interlock Hose	e.g. 24243
		8	For R5 Series	----
F	Thread DASH CODE or Thread DN
G	HOSE DN
alpha	Special Indicator	D	DOUBLE Hexgon	e.g. 28611D
		T	T-type
		F	One-piece
		W	Transwire
		SW	Swivel
		PO	Inserting tail type
		H	Long