Can be Customized Pipe Expansion Joint Flange Type PTFE Bellows
Product Description
Addressing complex piping geometries and thermal transients, the PTFE bellows incorporates advanced kinematic design principles. Its
three-dimensional flexibility—permitting axial
compression/extension, lateral offset, and torsional
rotation—mitigates stress concentrations caused by building
settlement, thermal cycling, or seismic activity. PTFE bellows core's low friction coefficient (μ < 0.1) facilitates smooth
bending without energy loss, while the metallic reinforcement layer
prevents over-extension and kink resistance. Tested to exceed
10,000 cycle durability in fatigue testing, this component
minimizes maintenance requirements in marine exhaust systems,
geothermal power plants, and nuclear reactor coolant loops.
Optional FDA-compliant silicone-free liners are available for
food-grade applications.
Performance characteristics
1. Flexibility: Accommodates axial, lateral, and angular movements.
2. Durability: Reinforced Rubber Joint provides long-lasting performance.
3. Corrosion Resistance: Resists aggressive environments and
chemicals.
4. Noise & Vibration Reduction: Dampens vibrations and shock waves.
5. Ease of Installation & Maintenance: Compact design and standard
flange connections facilitate installation and upkeep.
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
100% strict inspection is to be responsible for consumers | 6. Packaging
Protective Packaging for No
Rust and Breakage |
Application
PTFE bellows 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
Q1:What’s the material of PTFE bellows?
A1:The material can be EPDM,NBR,CR,SBR..It depends on the working
condition.
Q2:What’s the warranty period of PTFE bellows?
A2:We provide 18 months’ warranty.
Q3:What’s the working temperature of PTFE bellows?
A3:The working temperature is -20℃~100℃.
Q4:What’s the package?
A4:The package is carton box and strong plywooden case.
