Hydraulic pipe joint

Hydraulic pipe joint is a fitting that connects two or more hydraulic pipes together.

It is designed to create a leak-proof seal and provide flexibility to the hydraulic system, allowing it to absorb vibrations and movements of the pipes. Hydraulic pipe joints can be made from a variety of materials, including steel, brass, and plastic, and can have different types of connections such as threaded, flanged, or welded. They are commonly used in hydraulic systems such as hydraulic machinery, construction equipment, and automobiles.

Krh and krj series forging clamp type flexible pipe joints can effectively compensate the thermal expansion and cold contraction of the pipeline system due to temperature change, and compensate the angle change caused by the sinking of the pipeline foundation. They are resistant to high pressure, easy to install, and the comprehensive cost performance is much better than that of flange connection.

Technical specifications and parameters of hydraulic pipe joint：

Nominal Pressure (MPa)	Nominal Diameter (DN Mm)	Maximum Clearance At Pipe End (△ Mm)	Maximum Angle (Θ°)	Tube Deflection (F Mm/M)	L₁	L	D	D₁	D₂	B	B₁	Bolt
					L₁	L	D	D₁	D₂	B	B₁	Diameter (D)	Quantity
					Mm							Mm	Pc.
4	150	10	2.74	47	307	259	226	154	168	68	120-130	16	2
	175	10	2.35	41	333	285	252	178	194	68	120-130
	200	10	1.48	26	358	310	277	207	219	68	120-130
	225	10	1.33	23	384	336	303	232	245	68	120-130
	250	10	1.20	21	412	364	331	259	273	68	120-130
	300	10	1.04	18	483	427	383	310	325	68	120-130	18
	350	10	1.03	18	535	479	435	359	377	68	120-130	18
	400	10	0.97	16	595	535	484	408	426	68	120-130	20
2.5	450	10	0.93	16	649	589	538	462	480	68	120-130	20
	500	10	0.90	15	703	641	588	512	530	68	120-130	22
	600	10	0.88	15	803	741	688	610	630	68	120-130	22
1.6	700	10	0.82	14	889	829	778	700	720	68	120-130	20	4
	800	10	0.80	14	989	929	878	800	820	68	120-130	20
	900	10	0.73	12	1093	1031	978	900	920	68	120-130	22
	1000	10	0.70	12	1193	1131	1078	1000	1020	68	120-130	22

The theoretical mass includes the mass of clamps, terminations, sealing rubber rings, bolts and nuts.
The clamp with nominal diameter of 150 - 700 is composed of two lobes, and the clamp with nominal diameter greater than 700 is composed of four lobes.
Special requirements can be designed and manufactured separately.