Stainless steel push-to-connect fittings—also known as stainless steel push-in fittings—share a similar structural design with standard pneumatic push-in fittings. Each fitting features an internal stainless steel lock claw and a Viton-made sealing ring, ensuring secure, leak-free connections with pneumatic air tubing.
When a pneumatic air tubing is inserted into the fitting, the Viton sealing ring tightly wraps around the tubing to prevent leakage. What sets stainless steel push-to-connect fittings apart from common pneumatic push-in fittings is their full stainless steel construction: both the body and the push button (or sleeve) are crafted entirely from stainless steel. This material choice endows them with superior properties, including exceptional corrosion resistance, high strength, pressure resistance, and temperature resistance—making them a robust alternative to standard pneumatic fittings.
Stainless steel push-to-connect fittings stand out for their advanced performance, making them ideal for demanding environments:
High temperature and corrosion resistance: Thanks to their stainless steel build, they thrive in harsh conditions where standard pneumatic fittings may fail.
Impressive pressure tolerance: The maximum working pressure can reach over 2.0MPa, surpassing many common pneumatic fittings.
Easy operation: Like other push-to-connect designs, they enable tool-free, quick connections and disconnections.
Rust-free and hygienic: Suitable for food, beverage, and medical industries, where cleanliness and corrosion resistance are critical.
Long service life: Durable materials and robust construction ensure extended use compared to standard pneumatic fittings.
Reliable sealing: The Viton sealing ring guarantees leak-free performance, even in challenging applications.
To ensure compatibility with your system, here are the key technical parameters of these high-performance pneumatic fittings:
Working pressure: -100KPa~2.0MPa
Working temperature: -20~120℃
Application medium: Compressed air, water, oil, other gases, and vacuum systems
Main body material: Stainless steel 304, 316, or 316L
Sealing material: FKM (VITON) fluorine rubber (resistant to high temperatures and chemicals)
Stainless steel push-to-connect fittings are categorized by their main body material, with three primary series available to suit different application needs:
304 stainless steel: Offers good general corrosion resistance and is suitable for most industrial environments.
316 stainless steel: Provides enhanced corrosion resistance, especially against acids and chloride solutions, making it ideal for chemical processing.
316L stainless steel: A low-carbon version of 316, with superior weldability and resistance to intergranular corrosion—perfect for high-purity or aggressive environments.
Whether for food processing, medical equipment, chemical plants, or high-pressure pneumatic systems, stainless steel push-to-connect fittings deliver the durability, reliability, and performance that standard pneumatic fittings cannot match.
