Kali PTFE Lining is a world-class producer of top-quality PTFE-lined products that provide reliable solutions to those sectors that demand corrosion resistance, high-heat tolerance and durability. Being in the field of advanced engineering for decades, Kali PTFE Lining is determined to deliver innovative products that are of the best industrial quality. The Kali PTFE Lined Expansion Bellow finds application for absorbing thermal expansion, vibration and misalignment of piping systems. Its stainless steel bellows type lined with premium quality PTFE gives it great protection against hostile chemicals and high temperature. Applicable for use in the chemical processing and pharma industries, it offers effective and long-lasting performance.
A PTFE Lined Expansion Bellow is an elastic unit that is designed in piping systems to accept thermal expansion, vibration and misalignment. It consists of a metal bellows assembly, ideally stainless steel, coated with a layer of high-grade Polytetrafluoroethylene (PTFE). PTFE lining is resistant to aggressive chemicals, high-temperature resistance and corrosion and is ideally suited in chemical processing, pharmaceutical and food-processing sectors. These expansion bellows safeguard the integrity of piping systems by facilitating movement without harm from corrosive materials, assuring long-term durability and performance in extreme conditions.
Size : 25 NB to 300 NB
Outer body : ASTM A 395 Gr 60-40-18
Flange Connection : ANSI B 16.5
Face to Face : ANSI B 16.10
Spark Test : 15 KVA
Hydro Test : at 29.8 kg/cm2
FEP- Max Temp : 180° C
PP Max Temp : 100° C
PFA Max Temp : 200° C
Kali PTFE Lining is a leading supplier of PTFE EXPANSION BELLOW in Malaysia, offering high-quality, corrosion-resistant solutions ideal for chemical, pharmaceutical, and industrial applications.
SIZE NB | L | RF | TH | NO OF CONV |
25 | 50 | 51 | 12 | -03 |
40 | 70 | 73 | 12 | 05- |
50 | 70 | 92 | 12 | 05- |
65 | 100 | 105 | 12 | -05 |
80 | 100 | 127 | 12 | 06- |
100 | 100 | 158 | 16 | -06 |
150 | 100 | 215 | 16 | -06 |
200 | 100 | 268 | 16 | 06 |
250 | 125 | 320 | 28.0 | -06 |
PTFE lining increases resistance to chemical corrosion, extending the lifespan of the expansion bellow.
Allows for reliable movement and compensation of thermal expansion or contraction without damage.
Withstands a broad temperature range, making it suitable for extreme environments.
PTFE’s non-stick properties reduce buildup, minimizing cleaning and maintenance needs
A PTFE lined expansion bellow is designed to absorb thermal expansion, vibrations, and mechanical movement in piping systems, particularly when transporting corrosive chemicals or high-purity fluids. The PTFE lining provides exceptional resistance to chemicals, ensuring the longevity and efficiency of the system.
PTFE lining offers superior chemical resistance, non-stick properties, excellent temperature tolerance, corrosion protection, and enhanced durability. These features make PTFE-lined expansion bellows ideal for use in harsh environments, significantly extending their lifespan and performance.
PTFE lined expansion bellows are widely used in industries such as chemical processing, pharmaceuticals, food and beverage, water treatment, and pulp and paper, due to their ability to resist corrosion, high temperatures, and chemical attacks.
Yes, PTFE-lined bellows are ideal for vacuum applications due to their flexibility, excellent chemical resistance, and low outgassing properties, making them highly effective in maintaining vacuum integrity.
When selecting a PTFE expansion bellow, consider factors such as the pressure and temperature range, movement type, chemical compatibility, size, and required flexibility. These elements will ensure the bellow meets your specific operational needs efficiently.







We are the leading Manufacturer and Supplier of PTFE Lined Pipe, Fittings, Flanges, Spool and Valves in Malaysia.