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PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges

PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges

PTFE lined flexible pipe connector

high-temperature corrosive fluid bellows

steel flange expansion joint

Place of Origin:

China

Brand Name:

JINGNING

Certification:

CE,ISO

Model Number:

RLJS

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Product Details
OEM/ODM:
For 20 Year's Experience
Product Name:
Rubber Expansion Joint Standard High Pressure Resistant In Piping Customized
Keyword:
Rubber Expansion Joint Standard
Material:
EPDM,NBR,NR, CR, FKM
Size:
DN50
Flange Standard:
PN10/16, Class150#, Class300#, JIS5K, JIS10K
Color:
Black
Shape:
Round
Material Of Flange:
Q235, SS304, SS316, SS316L
Surface Treatment:
Cold Galvanized
Nominal Diameter:
32mm - 1800mm
Warranty Time:
12 Months
In Stock:
20000
Businese Type:
Rubber Expansion Joints Manufacturer
Flange Material:
Carbon Steel, SS304, SS316
Main Frame:
Nylon Cord Fabric
Resistance:
Corrosion And Abrasion Resistant
Working Temperature:
-20℃~150℃
Feature:
Small Volume
Warranty:
12 Months
Deflection Angle:
10° - 15°
Axial Displacement:
6-18 Mm
Company Type:
Factory
Head Code:
Round
Product Drawings:
Offer
Connection Type:
Flanged
Oem:
Yes
Power:
Manual
Rubber Joint Material:
EPDM,NBR,CR,PTFE,etc.
Customized Support:
OEM, ODM
Operating Medium:
Water, Oil, Air, Chemicals
Applicable Media:
Air, Water, Oil, Weak Acid And Alkali
Standard:
DIN/ANSI/JIS/BS
Installation Manual:
Offer
Application:
Pipeline Systems
Temperature Rating:
200°F
Standard Of Flange:
ANSI, DIN, JIS, EN, Etc
Payment & Shipping Terms
Minimum Order Quantity
1
Price
US$11.16~51.22/pc
Packaging Details
carton or wooden
Delivery Time
5--15 working days
Payment Terms
Western Union,T/T,L/C,D/A,D/P,MoneyGram
Supply Ability
10000 sets per week
Product Description

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.

PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 0

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

PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 1

Production Flow


PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 2

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


PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 3

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 Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 4

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

PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 5


Certificate

PTFE Lined Flexible Pipe Connector: High-Temperature Corrosive Fluid Conveying Bellows with Steel Flanges 6

FAQ

Q1: What is the maximum temperature this PTFE-lined flexible connector can safely handle?

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.

Q2: Does the addition of the steel flanges affect the installation alignment?

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.

Q3: Why does the PTFE liner extend all the way over the flange face?

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.

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