Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
| Color | Black |
| Businese Type | Rubber expansion joints manufacturer |
| Axial Displacement | 6-18 mm |
| 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 |
| 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 |
| 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 |
View Detail Information
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Product Specification
| Color | Black | Businese Type | Rubber expansion joints manufacturer |
| Axial Displacement | 6-18 mm | 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 | 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 |
| 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 flexible bellows coupler ，weatherproof fluoroplastic expansion joint ，hazardous media expansion joint | ||
Premium PTFE Lined Flexible Bellows Coupler: Weatherproof Fluoroplastic Injected Expansion Joint for Hazardous Media
Product Description
The Premium PTFE Lined Flexible Bellows Coupler is a high-security engineering component purpose-built for the safe management of hazardous, toxic, and volatile media in demanding outdoor environments. When conveying dangerous fluids, pipeline infrastructure must not only resist internal chemical degradation but also withstand external environmental weathering. This advanced expansion joint answers the call by utilizing a premium PTFE (Polytetrafluoroethylene) inner liner seamlessly bonded within a weather-hardened, weatherproof elastomeric exterior shell.
The internal fluoropolymer barrier isolates hazardous chemicals, preventing micro-leakage and environmental contamination, while the rugged outer cover is formulated to repel intense ultraviolet (UV) radiation, atmospheric ozone, and extreme temperature fluctuations. Supported by heavy-duty backing flanges, this flexible bellows coupler effectively dampens destructive machinery vibrations and absorbs multi-axial thermal expansions, ensuring total system integrity and absolute peace of mind under the most severe operational and environmental conditions.
Performance characteristics
Hazardous Media Containment: The high-density, non-porous PTFE lining acts as a secure, chemically inert barrier that completely prevents the permeation or leakage of hazardous, volatile, or toxic industrial fluids.
All-Weather Exterior Defense: The outer elastomer layer features a specialized weatherproof compound that resists cracking, dry rot, and embrittlement caused by continuous exposure to sunlight, UV rays, coastal salt air, and freezing winter temperatures.
High-Efficiency Vibration Isolation: The heavy-duty elastic bellows design acts as a premium kinetic energy dampener, absorbing mechanical pulsations and high-frequency vibrations from chemical transfer pumps to prevent pipeline fatigue.
Omni-Directional Movement Relief: Engineered to accommodate severe system stresses, smoothly compensating for simultaneous axial compression, axial extension, lateral shearing, and angular misalignments caused by thermal expansion or ground settling.
Integrated Flared Face Gasket: The internal PTFE liner extends through the bore and flares outward across the entire sealing face of the flanges, creating a built-in, full-coverage chemical gasket that guarantees a leak-proof seal at connection points.
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
Hazardous media require zero-tolerance engineering against leakage and permeation. This coupler achieves this by utilizing an ultra-pure, high-density PTFE liner that eliminates microscopic voids. This prevents dangerous chemical vapors or fluids from migrating through the liner into the structural rubber body, ensuring absolute containment of toxic, acidic, or volatile substances.
Standard industrial rubber components can rapidly degrade, stiffen, and crack when exposed to outdoor sunlight and ozone. The exterior shell of this premium coupler is blended with specialized anti-ozonants and UV-blockers. This ensures the bellows remains flexible and fully functional across decades of changing seasonal cycles without requiring external protective shielding.
No separate gaskets are needed. The internal PTFE lining is designed with a flared, turned-over face that wraps entirely around the raised face of the flange. This continuous fluoropolymer surface acts as its own high-quality, full-face chemical gasket, creating an immediate, dependable seal when bolted against the mating pipe.
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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