Food & Pharma Grade PTFE Lined Expansion Joint: Non-Stick Ultra-Pure Fluoropolymer Flexible Bellows Piping Connector
Food & Pharma Grade PTFE Lined Expansion Joint: Non-Stick Ultra-Pure Fluoropolymer Flexible Bellows Piping Connector
Product Description
The Food Grade PTFE Lined Expansion Joint is an ultra-pure fluid transfer solution custom-engineered for industries where contamination control and absolute purity are critical. Designed specifically for food processing, dairy networks, beverage production, and cosmetics manufacturing, this non-stick flexible bellows connector integrates a high-density, pure PTFE (Polytetrafluoroethylene) liner into a resilient elastomeric body.
The virgin PTFE liner provides a completely non-reactive, non-toxic, and taste-neutral interior surface that meets stringent hygienic compliance standards. This internal fluoropolymer barrier isolates the flowing medium from the structural outer rubber shell, preventing any chemical extraction or leaching. Equipped with precision-engineered backing flanges, this flexible piping connector effortlessly absorbs thermal piping movements, dampens mechanical vibrations from sanitary transfer pumps, and ensures a sterile, leak-proof flow path in high-purity processing environments.
Performance characteristics
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Ultra-Pure Sanitary Design: Fabricated using 100% virgin, unpigmented PTFE that is completely inert, non-toxic, and free from plasticizers or fillers, ensuring it will not leach taste, odor, or color into sensitive consumables.
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Non-Stick & Easy to Clean: The mirror-smooth, low-friction fluoropolymer interior actively prevents biological scaling, proteins, and sticky sediments from adhering to the bore, making it perfectly suited for CIP (Clean-in-Place) high-temperature washdowns.
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Universal Chemical & Flavor Resistance: Resists aggressive cleaning sanitizers, strong caustic washes, and organic fruit acids, allowing operators to run different product batches sequentially without flavor carryover or material degradation.
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Hygienic Fluid Sealing: Features a flared, turned-over PTFE face that extends across the entire flange sealing surface, creating an integrated gasket barrier that seals out bacteria, moisture, and potential contaminants at connection points.
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Dynamic Stress Relief: Combines the structural elastic damping of a rubber joint with the purity of a fluoropolymer, absorbing concurrent axial, lateral, and angular misalignments while isolating high-frequency pump vibrations.
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° |
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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
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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 |
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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
Q1: Is this PTFE-lined expansion joint fully compliant with global food and sanitary standards?
Yes. The inner lining is made from pure, virgin PTFE resin, which naturally complies with international hygienic and sanitary standards for food contact surfaces and beverage production, including FDA (Food and Pharma Administration) regulations for public health safety.
Q2: Does the smooth interior lining handle sticky or high-viscosity products like syrups, creams, or pastes?
Absolutely. One of the core benefits of the pure PTFE fluoropolymer liner is its excellent non-stick property. High-viscosity fluids, sticky sugars, honey, and cosmetic creams slide smoothly through the bore without sticking, which minimizes product waste and drastically simplifies batch cleaning.
Q3: Do I need to remove the joint from the piping network for cleaning between product batches?
No, it is specifically optimized for automated process cleaning. The smooth, non-porous PTFE surface stands up effortlessly to standard CIP (Clean-in-Place) chemical flushes and high-temperature hot water cycles, allowing you to sanitize the entire pipeline without dismantling the connection.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.