Single Sphere Flange Rubber Expansion Joint
Specifications
End Flange Standard |
PN10/16/25, ANSI 125LB/150LB, JIS, DIN, AS |
Testing Standard |
API 598 |
Temperature |
-15℃~80℃(depends on the rubber material) |
Flange Material |
WCB Cold or Hot Galvanizing, SS304, SS316 |
Joint Material |
EPDM, NBR, FKM, NR, SBR, Chloroprene,Rubber+PTFE |
Applicable Medium |
Water, seawater, hot water, oil, acid, alkali, etc |
Certificates |
ISO9001, CE, WRAS, ACS |
Flexible Structure |
Allow four-way movement, absorb vibration and noise |
Floating Flange Connection |
Easy installation, adapt different flange |
Function |
reduce noise and vibration, absorb thermal expansion |
Dimension

Size |
D |
PN10 |
PN16 |
150LB |
|||
Ф D2 |
n - Ф d |
Ф D2 |
n - Ф d |
Ф D2 |
n - Ф d |
||
DN32 |
95 |
100 |
4-19 |
100 |
4-19 |
88.9 |
4-16.1 |
DN40 |
95 |
110 |
4-19 |
110 |
4-19 |
98.4 |
4-16.1 |
DN50 |
105 |
125 |
4-19 |
125 |
4-19 |
120.6 |
4-19 |
DN65 |
115 |
145 |
4-19 |
145 |
4-19 |
139.7 |
4-19 |
DN80 |
135 |
160 |
8-19 |
160 |
8-19 |
152.4 |
4-19 |
DN100 |
150 |
180 |
8-19 |
180 |
8-19 |
190.5 |
8-19 |
DN125 |
165 |
210 |
8-19 |
210 |
8-19 |
215.9 |
8-22.4 |
DN150 |
180 |
240 |
8-23 |
240 |
8-23 |
241.3 |
8-22.4 |
DN200 |
210 |
295 |
8-23 |
295 |
12-23 |
298.4 |
8-22.4 |
DN250 |
230 |
350 |
12-23 |
355 |
12-28 |
361.9 |
12-25.4 |
DN300 |
245 |
400 |
12-23 |
410 |
12-28 |
431.8 |
12-25.4 |
DN350 |
255 |
460 |
16-23 |
470 |
16-28 |
476.2 |
12-28.4 |
DN400 |
255 |
515 |
16-28 |
525 |
16-31 |
539.7 |
16-28.4 |
DN450 |
255 |
565 |
20-28 |
585 |
20-31 |
577.8 |
16-31.8 |
DN500 |
255 |
620 |
20-28 |
650 |
20-34 |
635.0 |
20-31.8 |
DN600 |
260 |
725 |
20-31 |
770 |
20-37 |
749.3 |
20-35.1 |
DN700 |
320 |
840 |
24-31 |
840 |
24-37 |
863.3 |
28-35.1 |
DN800 |
340 |
950 |
24-34 |
950 |
24-41 |
977.9 |
28-41.1 |
DN900 |
370 |
1050 |
28-34 |
1050 |
28-41 |
1085.8 |
32-41.1 |
DN1000 |
400 |
1160 |
28-37 |
1170 |
28-44 |
1200.0 |
36-41.1 |
DN1200 |
420 |
1380 |
32-41 |
1390 |
32-50 |
1422.4 |
44-41.1 |
A rubber expansion joint, also known as a rubber flexible connector, rubber soft connection, is a pipeline fitting composed of rubber and steel wire. Single sphere rubber expansion joint with flange serves to connect pipelines, providing functions such as shock absorption, noise reduction, and displacement compensation. With excellent pressure resistance, corrosion resistance, and flexibility, rubber bellow expansion joint is widely used in construction, chemical, water conservancy, electric power, and petroleum industries.











