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 |
| Application | Pipeline systems |
| 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 |
| Keyword | Rubber Expansion Joint Standard |
| Standard | DIN/ANSI/JIS/BS |
| Temperature Rating | 200°F |
| Feature | Small Volume |
| Shape | Round |
| Oem | Yes |
| Packaging Details | carton or wooden |
| Product Drawings | Offer |
| 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 | 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 | Application | Pipeline systems |
| 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 |
| Keyword | Rubber Expansion Joint Standard | Standard | DIN/ANSI/JIS/BS |
| Temperature Rating | 200°F | Feature | Small Volume |
| Shape | Round | Oem | Yes |
| Packaging Details | carton or wooden | Product Drawings | Offer |
| 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 | PN10/PN16 rubber flexible joint ，vibration isolator bellows coupler ，pump suction line expansion joint | ||
Dual Pressure Rating (PN10/PN16) Rubber Flexible Joint: Vibration Isolator Bellows Coupler for Pump Suction Lines
Explosion-Proof Chemical Containment for High-Pressure Industrial Lines.
The High Pressure Rating PTFE Lined Expansion Bellows is an advanced, high-integrity piping component designed for extreme industrial operations where corrosive media and explosive atmospheres intersect. Facilities processing hazardous chemicals, volatile solvents, and high-pressure reactive fluids require absolute zero-leakage security to protect personnel and surrounding infrastructure.
This explosion-proof flexible joint incorporates an ultra-dense, seamless PTFE (Polytetrafluoroethylene) inner liner pressure-bonded to a heavy-duty, multi-ply reinforced elastomer housing. The pure PTFE liner delivers an unyielding chemical barrier against aggressive acids and volatile compounds, while an anti-static grounding setup prevents electrostatic charge accumulation—eliminating spark hazards in explosive environments. Outfitted with heavy-duty steel flanges designed for elevated pressure ratings, this expansion joint compensates for multi-axial thermal growth, dampens pump vibration, and provides reliable pressure containment under continuous high-stress conditions.
Performance characteristics
Certified High-Pressure Rating: Reinforced with multi-layered high-tenacity fabric plies and integrated steel wire rings, ensuring high pressure-containment capability without structural distortion or liner failure.
Explosion-Proof & Anti-Static Design: Built to dissipate static charges across the joint, preventing dangerous sparks in volatile or explosive hazardous environments.
Absolute Chemical Immunity: The premium-grade PTFE liner provides near-universal corrosion resistance, isolating the outer rubber body from concentrated acids, strong alkalis, and aggressive organic solvents.
Vibration & Mechanical Shock Damping: The elastomeric outer matrix swallows high-frequency mechanical vibrations, motor hum, and pressure surges from heavy industrial pumps and machinery.
Integrated Flared Full-Face Seal: The continuous PTFE liner extends through the bore and flares over the flange face, acting as an integrated, chemical-proof gasket that prevents joint leakage and fluid seepage.
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
In explosive atmospheres or volatile fluid lines, high-velocity liquid flow can build up static electricity. This expansion joint incorporates anti-static features—such as conductive grounding straps or integrated anti-static liners—that safely ground electrostatic charges, eliminating spark risks in hazardous zone environments.
High-pressure capability is achieved through internal structural reinforcement. The outer rubber shell is built with extra layers of high-tenacity synthetic cord fabrics and embedded high-tensile steel wire rings, allowing the bellows to resist radial ballooning and axial rupture under high system pressures.
No. The internal PTFE liner extends completely through the throat and flares outward across the entire raised face of the steel backing flanges. This turned-over PTFE collar functions as its own full-face chemical gasket, creating an immediate leak-proof seal when compressed against mating pipe flanges.
Yes, but high-pressure vacuum combinations require specific reinforcement. If your pipeline experiences sudden negative pressure or vacuum draw, internal vacuum support rings should be specified during manufacturing to prevent the PTFE liner from collapsing inward.
The virgin PTFE lining offers near-universal chemical inertness. It safely handles concentrated sulfuric acid, hydrochloric acid, nitric acid, sodium hydroxide, volatile organic solvents, and harsh oxidizing agents without leaching, swelling, or degrading.
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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