Fritsche - Cutting Ring Fittings 24° for Lubrication Systems

Cutting ring fittings for regular applications are available in the following designs, among others: steel 1.0718, 1.0402, carbon 20 or 45 (both with chromium-6-free galvanised surfaces)

On the other hand, cutting ring fittings made of high-grade stainless steel (1.4401/1.4571 material) are components that are well suited for application in the food processing industry, in the beverages industry but also in marine and harbour applications and other wetland areas. The reason being that stainless steel is a neutral and highly chemically resistant type of material.

To ensure proper specification, quality and rationalisation during installation and use of the cutting ring fittings, the production process is subject to special quality certification according to EN ISO 8434 and DIN 2353 standards. A cutting ring fitting generally comprises a stud with a 24° cone, a coupling nut according to DIN 3870 and a cutting ring according to DIN 3861 shape A or DIN 3861 shape B.

The studs used in cutting ring fittings are equipped with both a screw-in thread (available in different sizes) and an external thread with W bore shape according to DIN 3861, with an incorporated 24° cone. The coupling nuts are also equipped with metric threads; depending on the design and tube diameter, these threads are available in different sizes. In order to ensure the extremely high sealing performance required, the cutting rings are also equipped with a 24° cone.

To make cutting ring fittings available and usable for a variety of applications in lubrication engineering, in hydraulics and pneumatics, the screw fittings produced in standardised industrial manufacturing are initially available with three typical screw thread variants. The screw fittings for cutting rings are classified as LL, L and S types.