Custom DN125 Pn16 Ss304 EPDM Connector Double Ball Bellows Flanged
Rubber Joint
The meanning of double ball rubber joints
Rubber joints, also known as flexible rubber joints, rubber soft
joints, soft joints, rubber expansion joints, shock absorbers,
etc., are pipeline connectors with high elasticity, high
airtightness, medium resistance, and weather resistance.
Performance characteristics of double ball rubber joints
Rubber joints utilize the advantages of high elasticity, high gas
resistance, medium resistance, weather resistance, and radiation
resistance of rubber, which can reduce pipeline vibration and
noise, and compensate for thermal expansion and contraction caused
by temperature changes.
Product advantages
1. The sphere is longer and has better vibration and noise
reduction effects
2. Good telescopic displacement performance and longer service life
than single ball rubber joints
3. Small size, light weight, good flexibility, and convenient
installation and maintenance
4. Absorbable displacement after installation
5. Reduce noise
| Technical Conditions of Rubber Expansion Joint |
| Item | KST-PN10 | KST-PN16 | KST-PN25 |
| Working pressure | 1.0Mpa | 1.6Mpa | 2.5Mpa |
| Burst pressure | 2.0Mpa | 3.0Mpa | 4.5Mpa |
| Vacuum | 53.3Kpa(400) | 86.7Kpa(650) | 100Kpa(750) |
Connecting Data
Nominal diameter | Length (mm) | Center distance | Number of holes-diameter | Axial displacement(mm) | Lateral displacement | Angular displacement |
| mm | Inch | Elongation | Compression |
| 40 | 1 1/2 | 165 | 110 | 4-18 | 30 | 50 | 45 | 35° |
| 50 | 2 | 165 | 125 | 4-18 | 30 | 50 | 45 | 35° |
| 65 | 2 1/2 | 175 | 145 | 4-18 | 30 | 50 | 45 | 35° |
| 80 | 3 | 175 | 160 | 8-18 | 35 | 50 | 45 | 35° |
| 100 | 4 | 225 | 180 | 8-18 | 35 | 50 | 40 | 35° |
| 125 | 5 | 230 | 210 | 8-18 | 35 | 50 | 40 | 35° |
| 150 | 6 | 325 | 240 | 8-22 | 35 | 50 | 40 | 35° |
| 200 | 8 | 325 | 295 | 8-22 | 35 | 50 | 40 | 35° |
| 250 | 10 | 325 | 350 | 12-22 | 35 | 60 | 35 | 30° |
| 300 | 12 | 325 | 400 | 12-22 | 35 | 60 | 35 | 30° |
| 350 | 14 | 350 | 460 | 16-22 | 35 | 60 | 35 | 30° |
| 400 | 16 | 350 | 515 | 16-26 | 35 | 60 | 35 | 30° |
| 450 | 18 | 350 | 565 | 20-26 | 35 | 60 | 35 | 30° |
| 500 | 20 | 350 | 620 | 20-26 | 35 | 60 | 35 | 30° |
| 600 | 24 | 400 | 725 | 20-30 | 35 | 60 | 35 | 30° |
| 700 | 28 | 400 | 840 | 24-30 | 35 | 60 | 35 | 30° |
| 800 | 32 | 400 | 950 | 24-30 | 35 | 60 | 35 | 30° |
Production Process
Installation Case
Installation of rubber joint
1.Installation bolts should be symmetrical and gradually
pressurized to prevent local leakage.
2.1.6MPa above working pressure, installation bolts should have
elastic pad to prevent bolts loosening when working. 3.Vertical
force support should be provided at both ends of the joint pipe
during vertical installation, and anti-pull-off device can be
adopted to prevent working pressure pull-off.
4.Rubber joints should be installed away from the heat source.
Ozone. Strictly prohibit strong radiation light exposure and the
use of non-conforming media.
5.Rubber joints shall be strictly prohibited from cutting the
surface and sealing surfaces during transportation and handling.
FAQ
Q: What is the MOQ of the double arch rubber absorb shock expansion
joint?
A: 1 Piece, You can also get it as a sample to test our product
quality ,then you can purchase order to us .
Q: Can I get a sample?
A: Of cause you can .
For samll order ,express wll be best;And for bulk order,sea ship
way is best but take much time;For urgent orders,we suggest via air
to airport plus ,then ship partner send to your door.
Q: Can I visit your factory before the order?
A: Yes, welcome to our factory to check the quality.
Q: Where is your nearest loading port?
A: Shanghai, Qingdao or Tianjin, China.
Q: And what's your packing?
A: Carton cases inside, export wooden cases outside.
