Oleo Tecnica One-Piece Half Flanges with Metric Threaded Fastening Holes

Description

The design of hydraulic systems requires safe connection components that comply with the highest pressure standards. Oleo Tecnica One-Piece Half Flanges with Metric Threaded Fastening Holes represent an optimal technical solution for stable flanged connections intended to operate under severe working conditions. This component, available both in the standard profile and in the one-piece flat half-flange configuration, ensures robust anchoring thanks to metric threaded holes integrated into the flange body.

Construction Features and Materials

The entire half-flange range is manufactured to meet the demanding requirements of industry professionals, using materials with high mechanical strength. The base components are manufactured in S355 steel or AISI 316L stainless steel. The standard factory surface treatment consists of Cr3 zinc plating, a specific treatment designed to significantly increase the corrosion resistance of the component while maintaining full compliance. For applications that do not require this external protection, or for direct use of the stainless steel variant, non-zinc-plated versions are also regularly available. The technical ordering designations clearly distinguish these characteristics: GFSI and GFPI indicate the standard versions, while GFXI and GFPXI identify the alternative construction variants.

Series 3000 and Series 6000 Technical Specifications

The complete range of these half flanges is divided into two main categories according to pressure resistance and thickness: Series 3000 and Series 6000.

Series 3000 supports maximum recommended working pressures that vary according to the specific component size. Compact sizes from 1/2″ to 1″1/4 reach 345 Kg/cm²; the 1″1/2 size supports 276 Kg/cm²; sizes from 2″ to 2″1/2 reach 207 Kg/cm²; the 3″ size reaches 172 Kg/cm²; the 3″1/2 size reaches 138 Kg/cm², before decreasing to 34 Kg/cm² for the larger 4″ and 5″ sizes.

Series 6000, specifically designed for high-pressure circuits, provides a constant maximum recommended working pressure of 414 Kg/cm² for all sizes from 1/2″ to 3″, including the flat-profile models within this performance range (identified by codes GFPI607 and GFPI608).

Dimensions and Metric Fastening

Oleo Tecnica One-Piece Half Flanges with Metric Threaded Fastening Holes are available in a wide range of sizes, starting from a minimum of 1/2″ up to a maximum of 5″ for Series 3000, and up to 3″ for the high-performance Series 6000. The external and internal structural dimensions, identified in engineering terms by parameters A, B, C, D, E and F, increase progressively to ensure a precise mechanical connection with the mating component. The fastening system is based exclusively on metric threaded holes (identified by the “M” value in the tables), ranging from M8 for the smallest sizes (such as the 1/2″ size in both series) up to M30 for the 3″ flat half flange (Series 6000). The overall weight of the components varies proportionally according to size and construction thickness (parameter H), starting from just 0.12 Kg for the 1/2″ Series 3000 flange and reaching a maximum of 7.30 Kg for the substantial 3″ flat Series 6000 variant.

Summary technical table of the main characteristics of Oleo Tecnica One-Piece Half Flanges with Metric Threaded Fastening Holes.

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