Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
| Payment Terms | Western Union,T/T,L/C,D/A,D/P,MoneyGram |
| Supply Ability | 10000 sets per week |
| Delivery Time | 5--15 working days |
| Packaging Details | carton or wooden |
| OEM/ODM | for 20 Year's Experience |
| Product name | Rubber Expansion Joint Standard High Pressure Resistant In Piping Customized |
| Keyword | Rubber Expansion Joint Standard |
| Material | EPDM,NBR,NR, CR, FKM |
| Size | DN50 |
| Flange Standard | PN10/16, Class150#, Class300#, JIS5K, JIS10K |
| Color | Black |
| Shape | Round |
| Material Of Flange | Q235, SS304, SS316, SS316L |
| Surface Treatment | Cold Galvanized |
| Nominal Diameter | 32mm - 1800mm |
| Warranty Time | 12 months |
| In Stock | 20000 |
| Businese Type | Rubber expansion joints manufacturer |
| Flange Material | Carbon steel, SS304, SS316 |
| Main Frame | Nylon Cord Fabric |
| Resistance | Corrosion and abrasion resistant |
| Working Temperature | -20℃~150℃ |
| Feature | Small Volume |
| Warranty | 12 months |
| Deflection Angle | 10° - 15° |
| Axial Displacement | 6-18 mm |
| Company Type | Factory |
| Head Code | Round |
| Product Drawings | Offer |
| Connection Type | Flanged |
| Oem | Yes |
| Power | Manual |
| Rubber Joint Material | EPDM,NBR,CR,PTFE,etc. |
| Customized Support | OEM, ODM |
| Operating Medium | Water, Oil, Air, Chemicals |
| Applicable Media | Air, Water, Oil, Weak Acid and Alkali |
| Standard | DIN/ANSI/JIS/BS |
| Installation Manual | offer |
| Application | Pipeline systems |
| Temperature Rating | 200°F |
| Standard Of Flange | ANSI, DIN, JIS, EN, etc |
| Brand Name | JINGNING |
| Model Number | RLJS |
| Certification | CE，ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | Western Union,T/T,L/C,D/A,D/P,MoneyGram | Supply Ability | 10000 sets per week |
| Delivery Time | 5--15 working days | Packaging Details | carton or wooden |
| OEM/ODM | for 20 Year's Experience | Product name | Rubber Expansion Joint Standard High Pressure Resistant In Piping Customized |
| Keyword | Rubber Expansion Joint Standard | Material | EPDM,NBR,NR, CR, FKM |
| Size | DN50 | Flange Standard | PN10/16, Class150#, Class300#, JIS5K, JIS10K |
| Color | Black | Shape | Round |
| Material Of Flange | Q235, SS304, SS316, SS316L | Surface Treatment | Cold Galvanized |
| Nominal Diameter | 32mm - 1800mm | Warranty Time | 12 months |
| In Stock | 20000 | Businese Type | Rubber expansion joints manufacturer |
| Flange Material | Carbon steel, SS304, SS316 | Main Frame | Nylon Cord Fabric |
| Resistance | Corrosion and abrasion resistant | Working Temperature | -20℃~150℃ |
| Feature | Small Volume | Warranty | 12 months |
| Deflection Angle | 10° - 15° | Axial Displacement | 6-18 mm |
| Company Type | Factory | Head Code | Round |
| Product Drawings | Offer | Connection Type | Flanged |
| Oem | Yes | Power | Manual |
| Rubber Joint Material | EPDM,NBR,CR,PTFE,etc. | Customized Support | OEM, ODM |
| Operating Medium | Water, Oil, Air, Chemicals | Applicable Media | Air, Water, Oil, Weak Acid and Alkali |
| Standard | DIN/ANSI/JIS/BS | Installation Manual | offer |
| Application | Pipeline systems | Temperature Rating | 200°F |
| Standard Of Flange | ANSI, DIN, JIS, EN, etc | Brand Name | JINGNING |
| Model Number | RLJS | Certification | CE，ISO |
| Place of Origin | China | ||
| High Light | flanged rubber expansion joint ，heavy duty flexible bellows connector ，industrial fluid pipe expansion joint | ||
High-Pressure Flanged Rubber Expansion Joint: Heavy Duty Flexible Bellows Pipe Connector for Industrial Fluid Systems
Product Description
When industrial fluid networks are subjected to sudden valve closures, high-head pumping cycles, or transient hydraulic shocks, ordinary flexible connectors risk catastrophic structural failure. Engineered specifically to withstand severe high-pressure spikes and unpredictable surge forces, this heavy-duty flanged rubber expansion joint serves as a critical, unyielding line of defense for rugged process piping infrastructure. It acts as a heavy-duty energy-absorbing buffer, ensuring that intense system pressure spikes do not translate into localized pipe ruptures or catastrophic downtime.
The exceptional resilience of this joint stems from its specialized vulcanized composite matrix, which fuses thick, premium-grade synthetic rubber layers with an ultra-dense interior architecture of high-tensile fabric reinforcements. This multi-layered reinforcement skeleton allows the bellows to absorb immense hydraulic stress and heavy multi-directional mechanical movements without swelling, ballooning, or distorting under full-rated working pressures. To guarantee absolute security at high-stress connection points, the assembly is paired with precision-machined, rigid backing flanges. These heavy-duty flanges distribute torque flawlessly to ensure uniform compression across the entirety of the rubber sealing face, completely eliminating the risk of blowouts, edge-slippage, or localized fluid weeping even during continuous high-pressure operations.
Performance characteristics
High-Surge Hydraulic Burst Resistance: Engineered with a high safety-factor pressure rating designed to easily absorb sudden fluid-hammer effects and transient pressure surges without risking structural rupture or wall thinning.
Anti-Ballooning Composite Matrix : Features a dense, multi-layered internal reinforcement woven from high-tensile synthetic cross-ply cords. This structural skeleton restricts geometric swelling and elongation under extreme internal pressures, ensuring complete dimensional stability.
Uniform-Compression Blowout Protection : Equipped with heavy-duty, anti-deformation backing flanges that provide perfectly distributed mechanical loading across the integrated rubber sealing collar, completely eliminating localized pressure leaks and joint blowout vulnerabilities.
Product Specification
| Size | Length | Allowable Movements in Operation | ||||
| mm | inch | mm | Axial Compression mm | Axial Extension mm |
Transverse Movement mm |
Angular Deflection mm |
| 25 | 1 | 130/152 | 20 | 12 | 14 | 15° |
| 32 | 1 1/4 | 95/130/152 | 20 | 12 | 14 | 15° |
| 40 | 1 1/2 | 95/130/152 | 20 | 12 | 14 | 15° |
| 50 | 2 | 105/130/152 | 20 | 12 | 14 | 15° |
| 65 | 2 1/2 | 115/130/152 | 20 | 12 | 14 | 15° |
| 80 | 3 | 130/135/152 | 20 | 12 | 14 | 15° |
| 100 | 4 | 130/152 | 20 | 12 | 14 | 15° |
| 125 | 5 | 130/152/165 | 20 | 12 | 14 | 15° |
| 150 | 6 | 130/152/185 | 20 | 12 | 14 | 15° |
| 200 | 8 | 130/152/210 | 20 | 12 | 14 | 15° |
| 250 | 10 | 130/203/230 | 20 | 12 | 14 | 15° |
| 300 | 12 | 130/203/245 | 25 | 16 | 22 | 15° |
| 350 | 14 | 200/255 | 25 | 16 | 22 | 15° |
| 400 | 16 | 200/255 | 25 | 16 | 22 | 15° |
| 450 | 18 | 200/255 | 25 | 16 | 22 | 15° |
| 500 | 20 | 200/255 | 25 | 16 | 22 | 15° |
| 600 | 24 | 260 | 25 | 16 | 22 | 15° |
| 700 | 28 | 260 | 25 | 16 | 22 | 15° |
| 800 | 32 | 260 | 25 | 16 | 22 | 15° |
| 900 | 36 | 260 | 25 | 16 | 22 | 15° |
| 1000 | 40 | 260/300 | 25 | 16 | 24 | 15° |
| 1100 | 44 | 300 | 25 | 16 | 24 | 15° |
| 1200 | 48 | 300 | 25 | 16 | 24 | 15° |
|
Note: If the medium is oil, acidic or alkaline substances, and there are special requirements for the working temperature, you can customize it by sending a letter or drawing. Please specify when ordering |
Product Details
Production Flow
|
1.Raw material Top level CR/EPDM/NBR rubber raw materials, No recycled rubber |
2.Plasticating and mixing Special Formulation for better Bending with Nylon,For Better Strength,Sealing |
3.Workblanks wraping Cooper plated steel wire reinforcement prevent pull off |
|
4.Vulcanizing Automatic vulcanization machine ensure vulcanization time and pressure |
5.Inspecting |
6. Packaging |
Application
Rubber Expansion Joint Standard are widely used in various fields, including construction, chemical industry, shipbuilding, tap water, gas, chemical pipelines, petroleum pipelines, food pipelines, air conditioning pipelines, and sewage treatment.
Our Services
1.24-hour online
2.Free samples provided
3.Support customization
4.Provide drawings
5.Multiple payment styles to choose from
6.Factory inspection (material, specifications, quantity, pressure, packaging)
7.Long warranty period
8.Suitable packaging for transportation
Our Customer
Certificate
FAQ
Q: What prevents this joint from bursting under high-pressure surges?
A: The internal core is woven with high-density synthetic fiber plies that mechanically restrain the elastomer from over-expanding under sudden pressure spikes.
Q: Can this model be used with petroleum products?
A: If ordered with our NBR (Nitrile) liner option, it offers excellent resistance to oil, fuels, and hydraulic fluids.
Company Details
Business Type:
Manufacturer
Year Established:
2004
Total Annual:
30000000-50000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Jingning is a specialist company in expansion joints for pipe equipment. Since 2004 we stand for values which are typical of a family owned company: the spirit of innovation, reliability, continuity and flexibility in thought and action.We are a reliable supplier to our customers who count... Jingning is a specialist company in expansion joints for pipe equipment. Since 2004 we stand for values which are typical of a family owned company: the spirit of innovation, reliability, continuity and flexibility in thought and action.We are a reliable supplier to our customers who count...
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