Full-external-pressure bypass type expansion joint with internal-external pressure balancing-Henan Kaida Bellows Co., Ltd.

Full-external-pressure bypass type expansion joint with internal-external pressure balancing

A bypass-type pressure-balanced expansion joint with an externally pressurized configuration, designed to accommodate axial movement while limiting pressure-thrust loads on adjacent piping. The arrangement is intended for piping systems that require both movement absorption and pressure balancing in a compact assembly.

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Detailes

Key Specifications of Bellows-Type Metal Expansion Joints

Nominal Diameter	Number of Corrugations	MPa Pressure Level					Effective area of the bellows (cm²)	Maximum outer diameter (mm)
		0.25	0.6	1	1.6	2.5
		Axial compensation, mm; N/ram
32	8	25/21	22/26	20/26	18/63	15/98	16	110
40	8	25/28	22/44	20/44	18/89	15/106	23	130
50	8	25/30	22/51	20/70	18/70	15/138	37	150
65	8	33/28	30/35	26/44	22/55	19/68	55	170
80	8	40/20	36/26	34/33	28/41	24/54	81	200
100	8	45/47	45/60	40/75	35/93	29/117	121	220
125	6	48/38	42/47	38/59	34/74	29/92	180	250
150	6	49/42	44/50	40/62	34/78	29/97	257	250
200	6	52/49	46/55	42/68	38/78	34/111	479	300
250	6	72/30	63/34	59/42	52/45	47/55	769	300
300	6	72/51	65/55	59/59	52/65	47/71	1105	340
350	6	72/58	65/62	59/67	52/74	47/81	1307	340
400	6	75/60	72/70	65/72	60/80	55/90	1430	380

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