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China Expansion Joints Factory - Custom Size DN32 to DN4000 | Flange & Threaded Connectors from Suppliers
- 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
- 1Small volume, light in weight, very good flexibility, convenience installation and maintenance.
- 2Transverse displacement, axial displacement, angular displacement.
- 3Reduce noise, shock absorption.
Expansion joints are specially engineered products inserted in a rigid piping system to achieve one or more of the following:
- 1Absorb movement
- 2Improved thermal stability
- 3Relieve system strain due to thermal change, load stress, pumping surges, wear or settling
- 4Reduce mechanical noise
- 5Compensate for misalignment
- 6Eliminate 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 |
Chamber Filter Press Plate
Frequently Asked Questions (FAQ)
QWhat sizes of expansion joints are available?
We offer expansion joints in sizes ranging from DN32 to DN4000. Custom sizes can also be designed and manufactured to meet your specific requirements.
QWhat connection types and standards do you support?
Our expansion joints support flange, flange type threaded, and union type rubber joint connections. We can drill flanges according to BS, DIN, ANSI, JIS, or other custom standards based on your drawing samples.
QWhat materials are used for the rubber bodies and flanges?
The rubber bodies are available in EPDM, NBR, NR, PTFE, and polarity rubber with single or double arches. The flanges can be made of carbon steel (galvanized) or stainless steel.
QWhat are the main applications of these expansion joints?
They are widely used in chemical engineering, construction, water supply, drainage, petroleum, light/heavy industries, refrigeration, sanitation, water heating, fire protection, and electric power infrastructure. Depending on the material, they can resist acid, alkali, corrosion, oil, high temperatures, radiation, wear, and aging.
QWhat technical features and movements do these expansion joints offer?
They feature a small volume, light weight, and excellent flexibility for easy installation. They accommodate transverse, axial, and angular displacements, reduce noise, absorb shocks, improve thermal stability, and eliminate electrolysis between dissimilar metals.