Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
| Color | Black |
| Businese Type | Rubber expansion joints manufacturer |
| Axial Displacement | 6-18 mm |
| 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 |
| Keyword | Rubber Expansion Joint Standard |
| Standard | DIN/ANSI/JIS/BS |
| Temperature Rating | 200°F |
| Application | Pipeline systems |
| Feature | Small Volume |
| Shape | Round |
| Oem | Yes |
| Packaging Details | carton or wooden |
| Product Drawings | Offer |
| 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 |
| Supply Ability | 10000 sets per week |
| OEM/ODM | for 20 Year's Experience |
| Connection Type | Flanged |
| 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℃ |
| Resistance | Corrosion and abrasion resistant |
| Customized Support | OEM, ODM |
| Nominal Diameter | 32mm - 1800mm |
| Deflection Angle | 10° - 15° |
| Warranty Time | 12 months |
| In Stock | 20000 |
| Rubber Joint Material | EPDM,NBR,CR,PTFE,etc. |
| Operating Medium | Water, Oil, Air, Chemicals |
| Installation Manual | offer |
| Surface Treatment | Cold Galvanized |
| Standard Of Flange | ANSI, DIN, JIS, EN, etc |
| Model Number | RLJS |
| Brand Name | JINGNING |
| Certification | CE，ISO |
| 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 | 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 | Keyword | Rubber Expansion Joint Standard |
| Standard | DIN/ANSI/JIS/BS | Temperature Rating | 200°F |
| Application | Pipeline systems | Feature | Small Volume |
| Shape | Round | Oem | Yes |
| Packaging Details | carton or wooden | Product Drawings | Offer |
| 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 |
| Supply Ability | 10000 sets per week | OEM/ODM | for 20 Year's Experience |
| Connection Type | Flanged | 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℃ |
| Resistance | Corrosion and abrasion resistant | Customized Support | OEM, ODM |
| Nominal Diameter | 32mm - 1800mm | Deflection Angle | 10° - 15° |
| Warranty Time | 12 months | In Stock | 20000 |
| Rubber Joint Material | EPDM,NBR,CR,PTFE,etc. | Operating Medium | Water, Oil, Air, Chemicals |
| Installation Manual | offer | Surface Treatment | Cold Galvanized |
| Standard Of Flange | ANSI, DIN, JIS, EN, etc | Model Number | RLJS |
| Brand Name | JINGNING | Certification | CE，ISO |
| Place of Origin | China | ||
| High Light | PN16 rubber expansion joint ，PTFE lined flanged bellows ，chemical pipeline expansion joint | ||
PN16 Pressure Rating Rubber Expansion Joint: High-Pressure PTFE Lined Flanged Bellows for Chemical Pipelines
The High-Pressure Chemical Barrier for Demanding Industrial Lines.
The PN16 Pressure Rating Rubber Expansion Joint is an engineered, high-integrity pipeline solution custom-built to withstand severe working pressures up to 16 bar (1.6 MPa) while handling highly aggressive process media. Chemical transfer networks, water treatment facilities, and pharmaceutical plants operating under continuous PN16 pressure conditions require robust protection against thermal stress, pressure surges, and joint leakage. This heavy-duty expansion bellows achieves complete reliability by combining a high-density PTFE (Polytetrafluoroethylene) inner liner with an ultra-tough, multi-layered vulcanized rubber matrix.
The full-coverage PTFE lining creates an impenetrable, inert fluid barrier that shields the elastomeric outer body from corrosive acids, aggressive solvents, and oxidizing agents. Backed by heavy-duty steel flanges, this PN16-rated flexible connector absorbs intense dynamic mechanical shock, dampens high-frequency machinery vibrations, and compensates for multi-axial thermal growth—ensuring long-term operational safety and zero-leakage security across high-pressure chemical piping systems.
Performance characteristics
Certified PN16 Working Pressure: Precision-reinforced with high-tensile synthetic fabric and steel wire plies to deliver an operational pressure rating of 16 bar, maintaining structural integrity without swelling, deformation, or bursting.
Full-Spectrum Chemical Inertness: The internal virgin PTFE lining provides complete isolation against aggressive media, including concentrated mineral acids, harsh alkalis, reactive solvents, and corrosive chemical solutions.
Vibration & Hydraulic Shock Isolation: The elastic composite body acts as a powerful kinetic energy dampener, absorbing mechanical pulsations, motor hum, and sudden pressure spikes from high-pressure chemical pumps.
Multi-Axial Movement Compensation: The single-sphere bellows architecture smoothly yields to dynamic system movements, simultaneously accommodating axial compression, axial extension, lateral deflection, and angular misalignment.
Flared Full-Face Sealing Face: The internal PTFE liner extends continuously through the throat and wraps completely over the face of the backing flange, forming an integrated chemical gasket that prevents corrosive seepage 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
"PN16" indicates a nominal pressure rating of 16 bar (approximately 232 PSI or 1.6 MPa) at ambient temperature. This means the expansion joint is structurally tested and rated to operate continuously under working pressures up to 16 bar without experiencing structural fatigue, liner delamination, or outer shell rupture.
Standard rubber compounds (like EPDM or NBR) can rapidly degrade, swell, or crack when exposed to strong industrial chemicals under high pressure. The PTFE lining serves as an impenetrable, non-reactive shield that prevents the chemical medium from touching the structural rubber body, allowing the joint to retain its pressure containment and flexible damping properties safely.
No additional gaskets are necessary. The internal PTFE liner extends completely through the bore and flares outward across the entire raised face of the metal backing flanges. This turned-over PTFE collar functions as its own full-face chemical gasket, creating a leak-proof seal when torqued evenly against mating pipe flanges.
Yes, absolutely. Pump discharge lines typically experience high working pressures and strong hydraulic vibrations. This PN16-rated joint is specifically built for such high-stress locations, acting as a flexible vibration isolator while easily handling the continuous 16-bar discharge pressure.
Yes, control units (limit rods) are strongly recommended for high-pressure applications like PN16 lines, especially if the piping system is unanchored. Control units prevent the bellows from over-extending beyond its maximum allowable limits during unexpected pressure surges or thermal shifts, protecting the pipeline anchors and the joint itself.
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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