Oleo Tecnica 90° NPT Threaded Flanges

Description

General and Construction Specifications

Oleo Tecnica 90° NPT Threaded Flanges represent a highly reliable solution for fluid contamination control and for connecting hydraulic components in demanding environments. These flanged fittings are machined entirely from bar stock, a manufacturing process that ensures superior structural compactness and eliminates the porosity typically associated with cast components, providing maximum mechanical resistance to stresses and pressure peaks. Available construction materials include S355 carbon steel and AISI 316L stainless steel, offering suitable options for both standard applications and highly corrosive environments.

Series 3000: Dimensions and Working Pressures

The Series 3000 family is designed to handle maximum recommended working pressures that vary according to flange size. For diameters from 1/2″ NPT up to 1″ NPT, the maximum working pressure reaches 345 Kg/cm². As the diameter increases, the pressure is 276 Kg/cm² for 1″1/4 NPT sizes, while for 1″1/2 NPT and 2″ NPT the recommended limit is 207 Kg/cm². For the largest 2″1/2 NPT size, the operating pressure decreases to 172 Kg/cm². The connections cover a wide range of system requirements, ensuring precise sealing through the use of specific O-Ring seals for each size (e.g. OR 4075 for 1/2″, OR 4275 for 2″1/2).

Series 6000: High-Pressure Performance

For hydraulic systems requiring higher performance, Series 6000 Oleo Tecnica 90° NPT Threaded Flanges offer a uniform maximum recommended working pressure of 414 Kg/cm² across all available sizes, ranging from 1/2″ NPT up to 2″ NPT. The fastening-hole dimensions, component thickness and tightening screw specifications are calculated to withstand the most demanding working loads, confirming the industrial-grade design of these components.

Designations and Fastening Configurations

The available supply options allow a high degree of customisation when ordering. The flange can be ordered separately (AFS designation for S355, AFX for AISI 316L), or as part of a complete installation-ready kit. Complete sets can include metric screws, spring washers and O-ring (suffix NM), or UNC screws, spring washers and O-ring (suffix NU). An important construction requirement should be noted: the UNC screw set is available exclusively in the carbon steel version, an essential detail for the correct design and procurement of fittings.

Summary technical table of the main characteristics of Oleo Tecnica 90° NPT Threaded Flanges

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