ptfe balgen
PTFE Bellows for High-Performance Industrial Use
DEKOMTE supplies a high-quality range of Balg van PTFE designed for use in critical chemical and industrial applications. These flexible expansion joints are engineered to handle aggressive media, temperature fluctuations, and pressure changes, ensuring reliable performance and long operational life. Built from advanced materials using specialist processes, DEKOMTE’s Balg van PTFE provide a safe and effective solution where traditional materials often fail.
Low and High Pressure Options
DEKOMTE offers two core versions of its Balg van PTFE:
Type R-LD (Low Pressure): Ideal for systems operating at lower pressures, this bellow offers excellent flexibility while maintaining chemical and thermal resistance.
Type R-HD (High Pressure): Designed for higher pressure environments, this option delivers increased durability and structural integrity under demanding conditions.



Installatielengtes
INBOUWLENGTE TYPE R-LD | ||||||
DN | 2 Conv. | 3 Conv. | +/ Minpunten. | ax. Mov. ± / - Conv. | lat. Mov. ± / - Conv. | lat. Mov. ± / - Conv. |
25 | 45 | 55 | 12 | 5,5 | 3,5 | 8 |
32 | 55 | 65 | 13 | 5,5 | 3,5 | 7,5 |
40 | 55 | 70 | 15 | 6 | 4 | 7,5 |
50 | 60 | 70 | 16 | 6 | 4 | 6,5 |
65 | 60 | 80 | 20 | 6,5 | 5 | 6 |
80 | 65 | 90 | 24 | 6,5 | 5 | 6 |
100 | 70 | 95 | 25 | 7,5 | 5,5 | 5,5 |
125 | 75 | 100 | 25 | 8 | 5,5 | 5 |
150 | 75 | 105 | 25 | 8,5 | 5,5 | 4 |
200 | 80 | 110 | 25 | 9 | 6 | 3,5 |
250 | 90 | 120 | 26 | 10 | 6 | 3,5 |
300 | 95 | 125 | 26 | 10 | 6 | 3 |
350 | 100 | 125 | 26 | 10,5 | 6 | 3 |
400 | 100 | 135 | 26 | 10,5 | 6 | 2,5 |
500 | 105 | 140 | 26 | 11 | 6,5 | 2,5 |
600 | 105 | 140 | 26 | 11 | 6,5 | 2 |
INBOUWLENGTE TYPE R-HD | ||||||
DN | 2 Conv. | 3 Conv. | +/ Conv. | ax. Mov. ± / - Conv. | lat. Mov. ± / - Conv. | ang. Mov.± / - Conv. |
25 | 45 | 55 | 12 | 3 | 2 | 4,5 |
32 | 55 | 65 | 13 | 3 | 2 | 4 |
40 | 55 | 70 | 15 | 3,5 | 2,5 | 4 |
50 | 60 | 70 | 16 | 3,5 | 2,5 | 3,5 |
65 | 60 | 80 | 20 | 4 | 3 | 3,5 |
80 | 65 | 90 | 24 | 4 | 3 | 3,5 |
100 | 70 | 95 | 25 | 4,5 | 3 | 3 |
125 | 75 | 100 | 25 | 4,5 | 3 | 3 |
150 | 75 | 105 | 25 | 5 | 3 | 2,5 |
200 | 80 | 110 | 25 | 5 | 3,5 | 2 |
250 | 90 | 120 | 26 | 5,5 | 3,5 | 2 |
300 | 95 | 125 | 26 | 5,5 | 3,5 | 1,5 |
350 | 100 | 125 | 26 | 6 | 3,5 | 1,5 |
400 | 100 | 135 | 26 | 6 | 3,5 | 1,5 |
500 | 105 | 140 | 26 | 6,5 | 4 | 1,5 |
600 | 105 | 140 | 26 | 6,5 | 4 | 1 |
Engineered with Advanced Laminated PTFE
The performance of DEKOMTE’s Balg van PTFE is underpinned by the use of multi-laminated PTFE tubes. These are produced using a precise lamination process that results in minimal porosity and a consistent wall thickness. This uniformity is essential for ensuring pressure stability, vacuum resistance, and chemical integrity.
Once the tubes are formed, they undergo a secondary transformation using controlled heat and pressure to shape them into high-performance bellows. This process enhances their structural strength and ensures long-term reliability, even in aggressive or variable operating environments.
Why Choose PTFE Bellows?
Balg van PTFE are especially suited to applications where chemical resistance, temperature tolerance, and mechanical flexibility are critical. PTFE (Polytetrafluoroethylene) is known for its non-reactive nature and ability to withstand corrosive substances, making these bellows ideal for:
Pharmaceutical production
Food and beverage systems
Semiconductor facilities
Petrochemical installations
In these industries, avoiding leaks and contamination is crucial. PTFE’s resistance to almost all chemicals—combined with its non-stick and thermally stable properties—makes it the material of choice for protecting valuable infrastructure and sensitive processes.
Vacuum and Pressure Resistance
A major strength of DEKOMTE’s Balg van PTFE is their ability to function under both vacuum and pressure conditions. Whether installed in systems that fluctuate between positive and negative pressure, or in setups that must retain absolute containment, these bellows perform consistently.
Their robust multi-layered design ensures they can handle extreme cycles and prolonged use without deformation or performance loss. This makes them especially valuable in installations where access is limited and maintenance shutdowns are costly.
Customisation Options
DEKOMTE can provide standard Balg van PTFE or fully customised solutions tailored to your system’s needs. Whether you require specific movement capabilities, unique chemical resistance, or integration with flanges or liners, DEKOMTE’s engineering team can deliver a solution that fits precisely.
Each bellow can be supplied as part of a full assembly, ready for installation. All products are designed to meet both functional and regulatory requirements for your specific industry.
Proven Industrial Partner
DEKOMTE is a trusted name in the expansion joint market, known for delivering durable, precise, and long-lasting products. With extensive experience across various industries, DEKOMTE’s Balg van PTFE continue to be a preferred choice for engineers who demand both performance and peace of mind.
For more information or to request a quotation, contact DEKOMTE’s expert team today.

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