Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
| Color | Black |
| Businese Type | Rubber expansion joints manufacturer |
| Axial Displacement | 6-18 mm |
| Keyword | Rubber Expansion Joint Standard |
| Standard | DIN/ANSI/JIS/BS |
| Temperature Rating | 200°F |
| Delivery Time | 5--15 working days |
| Flange Standard | PN10/16, Class150#, Class300#, JIS5K, JIS10K |
| Flange Material | Carbon steel, SS304, SS316 |
| Company Type | Factory |
| Power | Manual |
| Applicable Media | Air, Water, Oil, Weak Acid and Alkali |
| Supply Ability | 10000 sets per week |
| OEM/ODM | for 20 Year's Experience |
| Connection Type | Flanged |
| Payment Terms | Western Union,T/T,L/C,D/A,D/P,MoneyGram |
| Product name | Rubber Expansion Joint Standard High Pressure Resistant In Piping Customized |
| Size | DN50 |
| Warranty | 12 months |
| Application | Pipeline systems |
| Material | EPDM,NBR,NR, CR, FKM |
| Main Frame | Nylon Cord Fabric |
| Head Code | Round |
| Material Of Flange | Q235, SS304, SS316, SS316L |
| Working Temperature | -20℃~150℃ |
| Packaging Details | carton or wooden |
| Product Drawings | Offer |
| Feature | Small Volume |
| Resistance | Corrosion and abrasion resistant |
| Customized Support | OEM, ODM |
| Shape | Round |
| Oem | Yes |
| Nominal Diameter | 32mm - 1800mm |
| Deflection Angle | 10° - 15° |
| Surface Treatment | Cold Galvanized |
| Standard Of Flange | ANSI, DIN, JIS, EN, etc |
| Warranty Time | 12 months |
| In Stock | 20000 |
| Rubber Joint Material | EPDM,NBR,CR,PTFE,etc. |
| Operating Medium | Water, Oil, Air, Chemicals |
| Installation Manual | offer |
| Model Number | RLJS |
| Certification | CE，ISO |
| Brand Name | JINGNING |
| Place of Origin | China |
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Product Specification
| Color | Black | Businese Type | Rubber expansion joints manufacturer |
| Axial Displacement | 6-18 mm | Keyword | Rubber Expansion Joint Standard |
| Standard | DIN/ANSI/JIS/BS | Temperature Rating | 200°F |
| Delivery Time | 5--15 working days | Flange Standard | PN10/16, Class150#, Class300#, JIS5K, JIS10K |
| Flange Material | Carbon steel, SS304, SS316 | Company Type | Factory |
| Power | Manual | Applicable Media | Air, Water, Oil, Weak Acid and Alkali |
| Supply Ability | 10000 sets per week | OEM/ODM | for 20 Year's Experience |
| Connection Type | Flanged | Payment Terms | Western Union,T/T,L/C,D/A,D/P,MoneyGram |
| Product name | Rubber Expansion Joint Standard High Pressure Resistant In Piping Customized | Size | DN50 |
| Warranty | 12 months | Application | Pipeline systems |
| Material | EPDM,NBR,NR, CR, FKM | Main Frame | Nylon Cord Fabric |
| Head Code | Round | Material Of Flange | Q235, SS304, SS316, SS316L |
| Working Temperature | -20℃~150℃ | Packaging Details | carton or wooden |
| Product Drawings | Offer | Feature | Small Volume |
| Resistance | Corrosion and abrasion resistant | Customized Support | OEM, ODM |
| Shape | Round | Oem | Yes |
| Nominal Diameter | 32mm - 1800mm | Deflection Angle | 10° - 15° |
| Surface Treatment | Cold Galvanized | Standard Of Flange | ANSI, DIN, JIS, EN, etc |
| Warranty Time | 12 months | In Stock | 20000 |
| Rubber Joint Material | EPDM,NBR,CR,PTFE,etc. | Operating Medium | Water, Oil, Air, Chemicals |
| Installation Manual | offer | Model Number | RLJS |
| Certification | CE，ISO | Brand Name | JINGNING |
| Place of Origin | China | ||
| High Light | PTFE lined rubber expansion joint ，wear-resistant pipeline vibration damper ，heavy industry PTFE composite joint | ||
Heavy Industry Polytetrafluoroethylene Composite Rubber Joint: Wear-Resistant PTFE Lining Pipeline Vibration Damper
Product Description
The Heavy Industry Polytetrafluoroethylene Composite Rubber Joint is a rugged, dual-defense pipeline component engineered for the absolute harshest industrial environments. In heavy-industry sectors like mining, chemical processing, and wastewater treatment, pipelines frequently convey media that are both highly corrosive and physically abrasive. This composite joint solves this dual-threat challenge by fusing a thick, high-density PTFE (Polytetrafluoroethylene) liner seamlessly inside an ultra-tough, multi-layered structural rubber matrix.
The inner PTFE lining serves as an impenetrable chemical shield that remains completely inert against concentrated acids and solvents, while its engineered high-molecular density provides exceptional wear resistance against suspended solids, grit, and abrasive slurries. Encased in a heavy-duty, high-elasticity rubber exterior and backed by robust steel flanges, this pipeline vibration damper acts as a high-efficiency kinetic energy sink—neutralizing destructive machinery shocks, swallowing pump pulsations, and accommodating multi-axial thermal displacements to protect your heavy industrial infrastructure from catastrophic fatigue.
Performance characteristics
Dual Corrosion & Wear Resistance: The thick, premium-grade Polytetrafluoroethylene lining provides near-universal chemical defense while offering a low-friction, wear-resistant surface that withstands the continuous scouring action of abrasive industrial particles.
Heavy-Duty Structural Matrix: Reinforced internally with ten layers of high-tenacity synthetic fabric or multi-strand steel wire plies, ensuring maximum dimensional stability and pressure containment under intense heavy-industry cycling.
Superior Vibration & Shock Isolation: The high-damping composite rubber housing actively absorbs high-frequency vibrations and hydraulic shock waves right at the source, protecting downstream instrumentation, valves, and pipe anchors.
Non-Stick, Anti-Caking Bore: The ultra-smooth, low-friction interior surface prevents chemical crystallization, sticky sediments, and mining slurries from adhering to or clogging the inner arch, maintaining optimal fluid velocity.
Integrated Flared Face Sealing: The internal PTFE liner extends completely through the throat and curls outward across the full face of the rotating metal flanges, creating an integrated, chemical-proof gasket surface that completely prevents leakage at connection interfaces.
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
Standard lined joints are often designed solely for chemical corrosion, featuring thin liners that can quickly erode when solids are present. Our heavy-industry composite joint utilizes a significantly thickened, wear-resistant PTFE formulation coupled with a heavily reinforced rubber body (often utilizing up to ten layers of high-tenacity nylon cord). This rugged composition allows it to handle high-velocity slurries, heavy vibration, and industrial pressure surges simultaneously without tearing or wearing through.
No. While pure PTFE is famous for its chemical properties, high-density engineered PTFE also possesses a very low coefficient of friction and high molecular cohesion. This means abrasive particles slide smoothly across the surface rather than catching and cutting into the material, giving it a much longer service life in slurry lines than unlined standard rubbers.
The heavy steel backing flanges spin freely around the molded composite collar before installation. This is a critical convenience feature for heavy industrial environments, allowing field technicians to effortlessly align the bolt holes with existing pipelines without twisting or pre-stressing the rubber-PTFE body during setup.
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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