|
| ชื่อแบรนด์: | Lianghe |
| เลขรุ่น: | Kst |
| ขั้นต่ำ: | 1 ชุด |
| ราคา: | $5.79-$66.9 |
| รายละเอียดการบรรจุ: | บรรจุภัณฑ์กล่องไม้ |
| เงื่อนไขการจ่ายเงิน: | T/T, D/A, D/P, Western Union, Moneygram, L/C |
Double Sphere Rubber Expansion Joint | High Flexibility & Long Service Life
Product Overview
The Double Sphere Rubber Expansion Joint is a high-performance flexible connector designed to absorb vibration, reduce noise, and compensate for thermal expansion in pipelines. Compared with single sphere designs, the double sphere structure provides greater flexibility, larger displacement capacity, and improved pressure resistance, making it ideal for complex piping systems in industrial, municipal, and commercial applications.
This product is manufactured from high-quality rubber materials such as EPDM, NBR, Neoprene, or Natural Rubber, reinforced with multi-layer synthetic fabric and steel wire for excellent durability under different working conditions.
Technical Specifications
Nominal Diameter (DN): DN25 – DN1200
Working Pressure: PN10 / PN16 / PN25
Material Options:
Body: EPDM, NBR, Neoprene, NR
Reinforcement: Nylon cord & steel wire
Flange: Carbon steel, Stainless steel, or Galvanized steel
Temperature Range: -20°C to +120°C (depending on rubber type)
Movement Capability:
Axial compression: up to 60mm
Axial extension: up to 35mm
Lateral displacement: up to 45mm
Twin sphere rubber expansion joint parameters
|
Nominal diameter |
Length (mm) |
Axial displacement(mm) |
Lateral displacement(mm) |
Angular displacement |
||
|
mm |
inch |
Elongation |
Compression |
|||
|
40 |
1 1/2 |
165 |
30 |
50 |
45 |
35° |
|
50 |
2 |
165 |
30 |
50 |
45 |
35° |
|
65 |
2 1/2 |
175 |
30 |
50 |
45 |
35° |
|
80 |
3 |
175 |
35 |
50 |
45 |
35° |
|
100 |
4 |
225 |
35 |
50 |
40 |
35° |
|
125 |
5 |
230 |
35 |
50 |
40 |
35° |
|
150 |
6 |
325 |
35 |
50 |
40 |
35° |
|
200 |
8 |
325 |
35 |
50 |
40 |
35° |
|
250 |
10 |
325 |
35 |
60 |
35 |
30° |
|
300 |
12 |
325 |
35 |
60 |
35 |
30° |
|
350 |
14 |
350 |
35 |
60 |
35 |
30° |
|
400 |
16 |
350 |
35 |
60 |
35 |
30° |
|
450 |
18 |
350 |
35 |
60 |
35 |
30° |
|
500 |
20 |
350 |
35 |
60 |
35 |
30° |
|
600 |
24 |
400 |
35 |
60 |
35 |
30° |
Key Features & Benefits
Enhanced Flexibility – Double sphere design allows higher axial, lateral, and angular movement compared to single sphere models.
Noise & Vibration Reduction – Effectively isolates pump and pipeline vibrations, extending the service life of equipment.
Corrosion & Pressure Resistance – Available in multiple rubber compounds to handle water, seawater, oil, chemicals, and gases.
Easy Installation – Compact structure, lightweight, and flange-connected for quick replacement or maintenance.
Wide Application Range – Suitable for HVAC, water supply, sewage treatment, chemical plants, power stations, and shipbuilding industries.
Applications
1.Water & Wastewater Systems – Compensates thermal expansion in long pipelines.
2.HVAC & Pump Systems – Reduces vibration and protects pumps, chillers, and compressors.
3.Chemical & Oil Industry – Resists corrosion from acids, alkalis, and oils with special rubber compounds.
4.Marine & Shipbuilding – Withstands seawater corrosion while ensuring stable operation of onboard piping.
5.Power Plants & Steel Mills – Handles high pressure and temperature fluctuations effectively.
Why Choose Our Double Sphere Rubber Expansion Joint?
✔ Strict quality control with pressure and performance tests before delivery.
✔ OEM & ODM customization available for flange drilling standards (ANSI, DIN, JIS, BS).
✔ Competitive factory-direct price with reliable global shipping.
✔ Proven service life, reducing maintenance cost for end users.
Installation Tips
Ensure proper alignment of pipes before installation.
Do not exceed the designed displacement range to avoid damage.
Avoid direct contact with sharp metal objects or oil that may affect rubber performance.
For outdoor use, consider protective covers against UV exposure.
FAQ
Q1: What is the difference between single sphere and double sphere rubber expansion joints?
A1: The double sphere design provides greater flexibility and higher displacement absorption, especially suitable for systems with larger vibration and expansion.
Q2: Can the expansion joint handle chemicals or seawater?
A2: Yes, by selecting the right rubber material (EPDM for chemicals, NBR for oil, NR for water), the joint can adapt to various media.
Q3: What flange standards are available?
A3: We supply flanges according to ANSI, DIN, JIS, BS, and GB standards, customized as required.
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