Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
| 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 |
| 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 |
| 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
| 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 | 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 | 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 pipe connector ，high-temperature corrosive fluid bellows ，steel flange expansion joint | ||
PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges
Product Description
The PTFE Lined Flexible Pipe Connector is a premium, high-temperature fluid handling solution custom-engineered for the seamless conveyance of aggressive chemical media under extreme thermal conditions. Designed to bridge the gap between rigid, corrosion-prone alloy pipes and high-vibration industrial machinery, this heavy-duty connector integrates an advanced, thick-walled PTFE (Polytetrafluoroethylene) liner within a resilient, multi-layered elastomer matrix. The inner PTFE barrier shields the structural housing by offering absolute chemical inertness against concentrated acids, harsh alkalis, and volatile solvents, while the exterior rubber shell provides the crucial elastic flexing required to dampen system shocks. Anchored securely by precision-machined steel backing flanges, this high-temperature bellows allows pipelines to safely breathe, expand, and misalign without risking catastrophic structural fatigue, mechanical shearing, or hazardous chemical leaks at connection interfaces.
Performance characteristics
Broad Thermal Stability: Engineered to perform reliably across severe thermal cycles, maintaining structural integrity and flexibility at elevated operating temperatures where unlined standard industrial couplings would rapidly soften or degrade.
Universal Corrosion Defense: The pure, high-density PTFE lining serves as an impenetrable, non-reactive barrier that resists chemical attack from almost all industrial fluids, including nitric, sulfuric, and hydrochloric acids, as well as aggressive organic solvents.
Heavy-Duty Structural Support: Equipped with robust carbon steel or stainless steel flanges drilled to standard configurations, providing a highly stable mechanical connection that ensures uniform bolt torque and prevents localized sealing face distortion.
Dynamic Shock & Acoustic Isolation: The high-damping elastomer body absorbs destructive high-frequency mechanical vibrations and hydraulic pulsations from pumps, preventing solid-borne noise from echoing down the pipeline infrastructure.
Multi-Axial Motion Compensation: The specialized flexible arch geometry effortlessly absorbs concurrent axial compression, axial extension, lateral offset, and angular misalignments, isolating downstream equipment from piping stress caused by thermal growth.
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
While pure PTFE can withstand higher temperatures, the overall limit of a lined flexible connector is governed by the structural elastomer outer shell. Our heavy-duty units are optimized to operate continuously at temperatures up to 115°C, providing a wide safety margin for most hot, highly corrosive chemical transfer and process piping applications.
The steel flanges are designed as loose backing/rotating flanges. They spin freely around the molded rubber-and-PTFE collar before bolting. This allows for effortless, 360-degree rotation to line up bolt holes perfectly with your pipeline, preventing the flexible bellows from being twisted or torqued during setup.
This is known as a flared or turned-over face design. By extending the PTFE liner completely out of the bore and across the face of the flange, it ensures that flowing corrosive media only ever touches PTFE, never the steel backing flange. This flare also acts as a built-in, full-face gasket, eliminating the need for separate, expensive chemical gaskets.
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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