S-20 Double-sphere Flanged Rubber Expansion Joints

Table of Materials       

Serial No.	Portion	Material
1	Main body	Polarized rubber
2	Lining	Nylon cord fabric
3	Frame	Hard steel wire
4	Flange	Mild steel

Techmical Consition

Model	DN32-DN200	DN250-DN500
Working pressure (Mpa)	1.6	1.0
Bursting pressure (Mpa)	4.8	3.0
Vacuity (mmHg)	500	400
Applicable temp.(°C)	-20~+115
Applicable media	Air Compressed air, water, sea water, hot water, weak acid, etc.

Table of  Main Parameters of Nominal Core Diameter, Length, Displacement Value and Flange

Nominal core diameter DN		LengthL (mm)	Axial displacement (mm)		Lateral displacement (mm)	Angle of deflection (a1+a2)
(mm)	(in.)		Stretch	Compression
32	(11/4)	175	20	30	45	30°
40	(11/2)	175	20	30	45	30°
50	2	175	20	30	45	30°
65	(21/2)	175	25	50	45	30°
80	(3)	175	25	50	45	30°
100	(4)	225	35	50	35	30°
125	(5)	225	35	50	35	30°
150	(6)	225	35	50	35	30°
200	(8)	325	35	50	30	30°
250	(10)	325	35	50	30	30°
300	(12)	325	35	50	30	20°
350	(14)	345	35	50	28	20°
400	(16)	345	35	50	28	20°
500	(20)	345	35	50	28	20°