HJ-S4

Steel ball hydraulic quick connector (carbon steel)

Applications:

HJ-S4 series are widely used in various industrial applications, mainly in construction equipment, forest equipment, agricultural machinery, hydraulic machines, steel equipment and other required hydraulic applications.

Applications:

HJ-S4 series are widely used in various industrial applications, mainly in construction equipment, forest equipment, agricultural machinery, hydraulic machines, steel equipment and other required hydraulic applications.

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Parameter

● When the connector is disconnected, the valve core automatically closes to prevent leakage.

● After the joint is connected, the valve opens automatically and keeps the fluid flowing smoothly within the rated working range.

● The valve uses a hard chrome alloy steel ball. The steel ball is spring loaded to firmly fix it on the valve seat.

● The valve provides metal-to-metal sealing between the steel ball and the inner cone.

● Key components are induction hardened for durability.

Technical Specifications:

Specifications (inches)	1/4	3/8	1/2	3/4	1
Rated Pressure(PSI)	5000	4000	4000	3000	3000
Rated flow rate (GPM)	3	6	12	28	50
Temperature range (standard seal)	-20℃to+120℃
Standard seal materials	Nitrile rubber

Female Socket

ISO	PART NO.	LS			A	T
6.3	HJ-S4-02SF	53.5	27.6	19	12.5	G1/4 NPT1/4
10	HJ-S4-03SF	63	34	24	13	G3/8 NPT3/8
12	HJ-S4-04SF	66.3	38.6	27	16	G1/2 NPT1/2
20	HJ-S4-06SF	82.5	48.2	34	19	G3/4 NPT3/4
20	HJ-S4-06SF(E)	83.5	47.5	35	18	G3/4 NPT3/4
25	HJ-S4-08SF	96.5	56	41	21	G1 NPT1

Male socket/Plug

ISO	PART NO.	LP	d	C		A	T
6.3	HJ-S4-02PF	36	14.2	18.5	19	2.5	G1/4 NPT1/4
10	HJ-S4-03PF	40	19	22	24	13	G3/8 NPT3/8
12.5	HJ-S4-04PF	43.5	20.5	27	27	16	G1/2 NPT1/2
20	HJ-S4-06PF	53.5	28	32	34	19	G3/4 NPT3/4
20	HJ-S4-06PF(E)	51	26.9	28.5	33.3	18	G3/4 NPT3/4
25	HJ-S4-08PF	63	31.3	38	41	21	G1 NPT1

Connector Assembly/ Coupling Fittings

ISO	PART NO.	L				T
6.3	HJ-S4-02	72.2	27.6	19	19	G1/4 NPT1/4
10	HJ-S4-03	82.6	34	24	24	G3/8 NPT3/8
12.5	HJ-S4-04	87.8	38.6	27	27	G1/2 NPT1/2
20	HJ-S4-06	107.8	48.2	34	34	G3/4 NPT3/4
20	HJ-S4-06	102	47.5	35	33.5	G3/4 NPT3/4
25	HJ-S4-08	126.8	56.2	41	41	G1 NPT1

Features/Applications:

● When the connector is disconnected, the valve core automatically closes to prevent leakage.

● After the joint is connected, the valve opens automatically and keeps the fluid flowing smoothly within the rated working range.

● The valve uses a hard chrome alloy steel ball. The steel ball is spring loaded to firmly fix it on the valve seat.

● The valve provides metal-to-metal sealing between the steel ball and the inner cone.

● Key components are induction hardened for durability.

Technical Specifications:

Specifications (inches)	1/4	3/8	1/2	3/4	1
Rated Pressure(PSI)	5000	4000	4000	3000	3000
Rated flow rate (GPM)	3	6	12	28	50
Temperature range (standard seal)	-20℃to+120℃
Standard seal materials	Nitrile rubber

Female Socket

ISO	PART NO.	LS			A	T
6.3	HJ-S4-02SF	53.5	27.6	19	12.5	G1/4 NPT1/4
10	HJ-S4-03SF	63	34	24	13	G3/8 NPT3/8
12	HJ-S4-04SF	66.3	38.6	27	16	G1/2 NPT1/2
20	HJ-S4-06SF	82.5	48.2	34	19	G3/4 NPT3/4
20	HJ-S4-06SF(E)	83.5	47.5	35	18	G3/4 NPT3/4
25	HJ-S4-08SF	96.5	56	41	21	G1 NPT1

Male socket/Plug

ISO	PART NO.	LP	d	C		A	T
6.3	HJ-S4-02PF	36	14.2	18.5	19	2.5	G1/4 NPT1/4
10	HJ-S4-03PF	40	19	22	24	13	G3/8 NPT3/8
12.5	HJ-S4-04PF	43.5	20.5	27	27	16	G1/2 NPT1/2
20	HJ-S4-06PF	53.5	28	32	34	19	G3/4 NPT3/4
20	HJ-S4-06PF(E)	51	26.9	28.5	33.3	18	G3/4 NPT3/4
25	HJ-S4-08PF	63	31.3	38	41	21	G1 NPT1

Connector Assembly/ Coupling Fittings

ISO	PART NO.	L				T
6.3	HJ-S4-02	72.2	27.6	19	19	G1/4 NPT1/4
10	HJ-S4-03	82.6	34	24	24	G3/8 NPT3/8
12.5	HJ-S4-04	87.8	38.6	27	27	G1/2 NPT1/2
20	HJ-S4-06	107.8	48.2	34	34	G3/4 NPT3/4
20	HJ-S4-06	102	47.5	35	33.5	G3/4 NPT3/4
25	HJ-S4-08	126.8	56.2	41	41	G1 NPT1

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