PVDF Fittings

At Pipestock we are pleased to present a range of PVDF fittings from the world-renowned manufacturer Tefen. Engineered from high-performance polyvinylidene fluoride (PVDF), these fittings are designed to meet demanding industrial requirements. The range operates across a working temperature band of -20 °C to +120 °C and can withstand maximum working pressures of up to 14 bar (200 psi) at 12 °C, with BSPT thread options available. With excellent chemical resistance and temperature stability, these PVDF fittings are ideally suited to corrosive environments and challenging process-media - particularly in chemical processing, fluid handling and instrumentation applications.

PVDF (Polyvinylidene Fluoride) is a high-performance thermoplastic polymer known for its exceptional strength, chemical resistance, and stability across a wide temperature range. It is naturally resistant to acids, bases, solvents, and UV radiation, making it an ideal material for harsh or corrosive environments. PVDF also offers excellent mechanical properties, low permeability, and high purity, which is why it’s commonly used in industries such as chemical processing, water treatment, pharmaceuticals, and electronics manufacturing.

Tefen PVDF fittings are designed for use in demanding environments where durability and resistance to chemicals are essential. Their strength and stability make them suitable for a wide variety of industrial and laboratory systems, including:

• Chemical processing plants: Resistant to acids, alkalis and solvents.
• Laboratories and dosing systems: Ideal for handling corrosive or reactive fluids.
• Water treatment and purification systems: Suitable for ultra-pure and de-ionised water.
• Semiconductor and electronics industries: Excellent for clean, contamination-free flow control.
• General fluid handling systems: Reliable for both chilled and moderately heated circuits.

These fittings can operate from -20 °C to +120 °C and withstand pressures up to 14 bar (200 psi), providing reliable performance across a wide temperature and pressure range. Their BSPT thread compatibility makes them easy to install into existing pipework and tubing systems.

While nylon fittings are popular for many general applications, PVDF offers several key advantages when conditions become more demanding:

• Superior chemical resistance: PVDF can handle a wide range of aggressive chemicals, acids, and solvents that would damage or weaken nylon.
• Better temperature performance: Remains strong and stable from -20 °C to +120 °C, whereas nylon may soften or deform at higher temperatures.
• Low moisture absorption: PVDF resists water uptake, maintaining dimensional stability and preventing swelling or cracking over time.
• Higher purity and cleanliness: Ideal for use in ultra-pure water, laboratory, and semiconductor systems where contamination must be avoided.
• Longer service life: More resistant to UV exposure, corrosion, and chemical attack, offering reliable performance in harsh environments.

In summary, PVDF fittings are the better choice for chemical processing, laboratory, or high-purity applications, while nylon remains a cost-effective option for general pneumatic or low-risk fluid systems.