DIN Fittings
Complete range of DIN2353 (ISO8434-1) 24-degree cone bite-type tube fittings for tube-to-tube and tube-to-port connections. Available in LL, L, and S series. Carbon steel with Zn-Ni coating or SS316L stainless steel.
Standard: DIN 2353 / ISO 8434-1 · 12 product series
DIN Tube Fitting
MaterialCarbon Steel / SS316L
G, GR, W, T, TR, K, SV, WSV
DIN Swivel Fitting
MaterialCarbon Steel / SS316L
Adjustable Coupling
MaterialCarbon Steel / SS316L
DKO Fluid Fittings
MaterialCarbon Steel / SS316L
Screw-in Fitting
MaterialCarbon Steel / SS316L
Customized SS316 Fittings
MaterialSS316L
Hydraulic Plug VSTI-ED
MaterialCarbon Steel / SS316L
DIN 2353 Screw Nut
MaterialCarbon Steel / SS316L
DIN Tube to Swivel Fitting
MaterialCarbon Steel / SS316L
DIN Male Stud Connector Fitting
MaterialCarbon Steel / SS316L
DIN Swivel Adjustable Fitting
MaterialCarbon Steel / SS316L
DIN Locknut Adjustable Fitting
MaterialCarbon Steel / SS316L
Frequently asked questions
What is a DIN 2353 bite-type tube fitting?
A DIN 2353 (ISO 8434-1) fitting uses a 24-degree cone and a hardened cutting ring (ferrule) that bites into the tube OD during assembly, creating a vibration-resistant metal-to-metal seal. No sealant compounds are needed, and the connection can be reassembled multiple times.
What pressure series are available?
We offer three series: LL (up to 100 bar), L (up to 500 bar for carbon steel), and S (up to 800 bar for carbon steel / 630 bar for SS316L). The specific working pressure depends on tube OD and wall thickness.
What is the advantage of Zn-Ni coating vs standard zinc plating?
Our Zn-Ni (zinc-nickel alloy) coating provides 720 h white-rust-free and 1500 h red-rust-free performance in ASTM B117 salt spray testing — far superior to standard zinc (96–200 h). This makes them ideal for marine, offshore, and outdoor hydraulic equipment.
What is the minimum order quantity for DIN fittings?
Standard stocked items: no minimum order. Custom specifications (special materials, non-standard sizes, custom coatings): typically 500–1,000 pcs. Free samples available for quality evaluation.