Double Sphere

Double arch flexible rubber expansion joints customized length

Double arch flexible rubber expansion joints customized length

Rubber material: EPDM,NBR,NR
Flange standard:DIN,ANSI,JIS,BS
Size:DN32--DN600
OEM&ODM
Product description: Double sphere flexible rubber expansion joints
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Double sphere rubber expansion joint

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Materials of Each Components

1- Vulcanised Rubber Bellow:	1.1 Rubber core (inner)
	1.2 Nylon tire cord
	1.3 Rubber cover (outer)
	1.4 Steel Wire
Rubber options: EPDM, NBR, Hypalon, Neoprene, Viton, Butyl Rubber,Natural Rubber, PTFE/EPDM
2- Loose Flanges:
Flange standard:DIN ,BS ,JIS ,ANSI,AS ,UNI,etc.
Flange Options: Stainless Steel AISI 304, AISI 316, etc.

Parameter Table

Main connecting dimension of rubber expansion joint
Nominal diameter(DN)		Length	Axial displacement		Horizontal displacement	Deflexion angle
mm	inch	mm	Extension(mm)	Compression(mm)	mm	(a1+a2)°
40	1 1/2	165	30	50	45	40°
50	2	165	30	50	45	40°
65	2 1/2	175	30	50	45	40°
80	3	175	30	50	45	40°
100	4	225	35	50	40	35°
125	5	225	35	50	40	35°
150	6	225	35	50	40	35°
200	8	325	35	60	35	30°
250	10	325	35	60	35	30°
300	12	325	35	60	35	30°
350	14	325	35	60	35	30°
400	16	340-400	35	60	35	30°
450	18	340-400	35	60	35	30°
500	20	340-400	35	60	35	30°
600	24	340-400	35	60	35	30°

Why chose us?

For pipe construction, you will need compensators – to absorb thermal expansion, to reduce vibration and noise. Our ‘Jingning’ rubber expansion joints have reliably performed these tasks since 1997.Due to premium quality and good service our rubber expansion joints have become the industry standard in China.