SS304 Flange Double Sphere Rubber Expansion Joint
Henan Province Zhicheng Valve & Fittings Manufacturing Co.
Our mission: Focus on product details, drive innovation, and meet user needs.
Our values: Integrity and standardization, cooperation and win-win
The double-arch expansion joint features precision-molded elastic composite material reinforced with multiple layers of nylon. The arch design enables smooth, turbulence-free fluid flow, making it suitable for handling process fluids containing suspended solids.
Product Specifications
Material Composition
| No. |
Component |
Material |
| 1 |
Outer/Inner Rubber |
NR, NBR, EPDM, SBR, BR etc. |
| 2 |
Frame |
Nylon Card Fabric |
| 3 |
Pressurized Ring |
Steel Wire Strand |
| 4 |
Flange |
Q235 Carbon Steel, 304 Stainless Steel etc. |
Technical Conditions
| Parameter |
Type 1 |
Type 2 |
Type 3 |
| Working Pressure (Kg f/cm²) |
1.0(10) |
1.6(16) |
2.5(25) |
| Explosion Pressure (Kg f/cm²) |
2.0(20) |
3.0(30) |
4.5(45) |
| Vacuum Value (mmHg) |
2.0(20) |
86.7(650) |
100(750) |
| Applicable Temperature |
-15℃ ~ +80℃ (-30℃~+150℃ special) |
| Applicable Media |
Air, compressed air, water, sea water, hot water, oil, acid and alkali etc. |
Main Connecting Dimensions
| Nominal Diameter (DN) |
Length |
Axial Displacement |
Horizontal Displacement |
Deflexion Angle |
| 32 mm (1¼") |
95 mm |
Extension: 6mm, Compression: 9mm |
9 mm |
15° |
| 40 mm (1½") |
95 mm |
Extension: 6mm, Compression: 10mm |
9 mm |
15° |
| 50 mm (2") |
105 mm |
Extension: 7mm, Compression: 10mm |
10 mm |
15° |
| 65 mm (2½") |
115 mm |
Extension: 7mm, Compression: 13mm |
11 mm |
15° |
| 80 mm (3") |
135 mm |
Extension: 8mm, Compression: 15mm |
12 mm |
15° |
| 100 mm (4") |
150 mm |
Extension: 10mm, Compression: 19mm |
13 mm |
15° |
| 125 mm (5") |
165 mm |
Extension: 12mm, Compression: 19mm |
13 mm |
15° |
| 150 mm (6") |
180 mm |
Extension: 12mm, Compression: 20mm |
14 mm |
15° |
| 200 mm (8") |
210 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 250 mm (10") |
230 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 300 mm (12") |
245 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 350 mm (14") |
255 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 400 mm (16") |
255 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 450 mm (18") |
255 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 500 mm (20") |
255 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 600 mm (24") |
260 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 700 mm (28") |
260 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 800 mm (32") |
260 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 900 mm (36") |
260 mm |
Extension: 16mm, Compression: 25mm |
22 mm |
15° |
| 1000 mm (40") |
260 mm |
Extension: 18mm, Compression: 26mm |
24 mm |
15° |
| 1200 mm (48") |
260 mm |
Extension: 18mm, Compression: 26mm |
24 mm |
15° |
| 1400 mm (56") |
350 mm |
Extension: 20mm, Compression: 28mm |
26 mm |
15° |
| 1600 mm (64") |
350 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 1800 mm (72") |
350 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 2000 mm (80") |
420 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 2200 mm (88") |
420 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 2400 mm (96") |
420 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 2600 mm (104") |
450 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 2800 mm (112") |
450 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
| 3000 mm (120") |
500 mm |
Extension: 25mm, Compression: 35mm |
30 mm |
10° |
For Quick Quotation, Please Provide:
- Media type flowing through the rubber expansion joint (water, oil, etc.)
- Nominal diameter of rubber expansion joint
- Type of rubber expansion joint (equal or reducing shape)
- Material of rubber and flange (EPDM, stainless steel, etc.)
- Flange standard (ANSI, DIN, etc.)
- Nominal pressure (150lb or 300lb)
- Length of rubber sphere
- Total quantity required
Key Advantages
Superior Pressure Resistance
Spherical structure with reinforced design provides exceptional stability against internal pressure
Vibration & Noise Absorption
Excellent absorption of vibration, noise, and shock
Flexible Movement Compensation
Compensates for elongation, compression, lateral and angular movement
Product Classification
Multiple categories available to meet various application requirements
Packing & Delivery
Shipping Options:
- FedEx/DHL/UPS/TNT for samples (Door-to-Door)
- By Air or By Sea for batch goods (LCL/FCL)
- Airport/Port receiving available
- Customer-specified freight forwarders accepted
- Negotiable shipping methods
Frequently Asked Questions
Can you make the product as per client's requirement?
Yes, we can manufacture according to your exact requirements.
What are your payment terms?
T/T (30% deposit, 70% balance before delivery), L/C at sight.
Where is your nearest loading port?
Shanghai, Qingdao or Tianjin, China.
How can you guarantee the quality or any warranty?
If any quality problems occur during use, products can be returned or handled according to consumer requests.
Do you accept small quantity orders?
Yes, we accept small quantity orders.
What is your shipment and delivery time?
By sea or air. Normally 7 to 14 days for delivery, depending on order quantity.
Send your detailed requirements below and click "Send" to get a quick reply!
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