2021 wholesale price Rubber Joint - Expansion Joints – HESPER
2021 wholesale price Rubber Joint - Expansion Joints – HESPER Detail:
Size: DN32 to DN4000, also can be customized
Connector approval: Flange, flange type Threaded, Union type Rubber Joint, also can be customized
Flange drilled: BS, DIN, ANSI, JIS or others provided drawing samples
Threads: DIN, BSPT, BSP, NPS, NPT, Metric, (ISO7/1, DIN 2999, ANSI B1.20.1)
Type: EPDM, NBR, NR, PTFE, Polarity rubber Body, Single arch or double arch, carbon steel galvanized flange, flange end and threaded end, flange: Carbon steel or stainless steel
Application: It is widely used in chemical engineering, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, water heating, fire protection, electric power and other basic projects. According to different materials can be made into acid, alkali, corrosion, oil, high temperature, radiation, wear resistance, aging and other varieties, to adapt to a variety of media and environment.
Expansion Joints Feature
1. Small volume, light in weight, very good flexibility, convenience installation and maintenance.
2. Transverse displacement, axial displacement, angular displacement.
3. Reduce noise, shock absorption.
Expansion joints are specially engineered products inserted in a rigid piping system to achieve one or more of the following:
1) Absorb movement
2) Improved thermal stability
3) Relieve system strain due to thermal change, load stress, pumping surges, wear or settling
4) Reduce mechanical noise
5) Compensate for misalignment
6) Eliminate electrolysis between dissimilar metals
Expansion Joints General Data
Size | ΦD1 | ΦD2 | N-Φd | D | d | Extension | Compression | Horizontal displacement (mm) | Weight(kg) |
DN32 | 140 | 100 | 4-18 | 95 | 16 | 6 | 9 | 9 | 3.4 |
DN40 | 150 | 110 | 4-18 | 95 | 18 | 6 | 10 | 9 | 4 |
DN50 | 165 | 125 | 4-19 | 105 | 18 | 7 | 10 | 10 | 5.5 |
DN65 | 185 | 145 | 4-19 | 115 | 20 | 7 | 13 | 11 | 6.7 |
DN80 | 200 | 160 | 8-19 | 135 | 20 | 8 | 15 | 12 | 7.7 |
DN100 | 220 | 180 | 8-19 | 150 | 22 | 10 | 19 | 13 | 9.4 |
DN125 | 250 | 210 | 8-19 | 165 | 24 | 12 | 19 | 13 | 12.7 |
DN150 | 285 | 240 | 8-23 | 180 | 24 | 12 | 20 | 14 | 15.8 |
DN200 | 340 | 295 | 12-23 | 210 | 24 | 16 | 25 | 22 | 20 |
DN250 | 405 | 355 | 12-28 | 230 | 28 | 16 | 25 | 22 | 29.22 |
DN300 | 460 | 410 | 12-28 | 245 | 28 | 16 | 25 | 22 | 32.8 |
DN350 | 520 | 470 | 16-28 | 255 | 28 | 16 | 25 | 22 | 41.3 |
DN400 | 580 | 525 | 16-31 | 255 | 30 | 16 | 25 | 22 | 55.6 |
DN450 | 640 | 585 | 20-31 | 255 | 30 | 16 | 25 | 22 | 61.8 |
DN500 | 715 | 650 | 20-34 | 255 | 32 | 16 | 25 | 22 | 69.4 |
DN600 | 840 | 770 | 20-37 | 260 | 36 | 16 | 25 | 22 | 96.8 |
Product Display
Product detail pictures:






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We emphasize advancement and introduce new products into the market each year for 2021 wholesale price Rubber Joint - Expansion Joints – HESPER, The product will supply to all over the world, such as: New Zealand , Anguilla , Spain , We now have been making our goods for more than 20 years . Mainly do wholesale , so we've the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we offer good solutions , but also because of our good after-sale service . We are here waiting for yourself for your inquiry.

The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
