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By certification 
Rubber Joints:
More features and benefits:
1. Versatile hand-built construction. Made in China
2. Absorbs directional movement
3. Absorbs vibration, noise and shock
4. Compensates for misalignment
5. Wide flowing arch design
6. Virtually eliminates sediment buildup
7. Economical fully molded construction
8. High vacuum rating (up to 30" Hg) can be supplied for certain sizes
9. Special grooved flange ring design, prevent rubber end pull out
10. Solid galvanized steel floating flanges speed the installation time
11. High tensile aircraft cable is embedded in the raised face rubber ends to prevent pull out and avoids the sharp cutting edge of solid steel rings
12. No gaskets required; integrally rubber flanged design, no gaskets required, DIN PN10/16 drilling standard, other flange drilling available, including ANSI 150lb/300 lb, BS, and JIs
Normally, the flange drilling is based on DIN PN16, ANSI 150/250/300 lbs, BS PN10, JIS 10K are also available upon request.
Functions for Rubber Expansion Joint:
1. The spherical shape provides stronger support.
2. Special designed rubber possesses chemical resistance, anti-stick properties, thermal stability, and resistance to age cracking.
3. Good noise and vibration dampening, high flexibility, high pressure ratings.
4. A flexible connection between equipment outlet and inlet flanges.
5. Accommodate the movement in a piping system caused by temperature change or other conditions.
More features and benefits:
1. Versatile hand-built construction. Made in China
2. Absorbs directional movement
3. Absorbs vibration, noise and shock
4. Compensates for misalignment
5. Wide flowing arch design
6. Virtually eliminates sediment buildup
7. Economical fully molded construction
8. High vacuum rating (up to 30" Hg) can be supplied for certain sizes
9. Special grooved flange ring design, prevent rubber end pull out
10. Solid galvanized steel floating flanges speed the installation time
11. High tensile aircraft cable is embedded in the raised face rubber ends to prevent pull out and avoids the sharp cutting edge of solid steel rings
12. No gaskets required; integrally rubber flanged design, no gaskets required, DIN PN10/16 drilling standard, other flange drilling available, including ANSI 150lb/300 lb, BS, and JIs
Normally, the flange drilling is based on DIN PN16, ANSI 150/250/300 lbs, BS PN10, JIS 10K are also available upon request.
Functions for Rubber Expansion Joint:
1. The spherical shape provides stronger support.
2. Special designed rubber possesses chemical resistance, anti-stick properties, thermal stability, and resistance to age cracking.
3. Good noise and vibration dampening, high flexibility, high pressure ratings.
4. A flexible connection between equipment outlet and inlet flanges.
5. Accommodate the movement in a piping system caused by temperature change or other conditions.
