LONGGUAN PIPE

LONGGUAN PIPE

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Product News

Loose flange-ANSI Flange


A lap joint flange is fitted over the pipe end by means of a lap or steel ring, allowing the flange to move freely on the pipe end.

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Threaded flange-EN 1092-1:2007 Flange


Threaded flange is a critical connecting component in piping systems. It connects directly to pipes by thread‑on engagement without welding.

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Steel Threaded Flange-DIN Flange


Threaded flange is a non-welded pipeline connection component equipped with internal thread, designed to connect threaded pipes without welding operation

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Butt Welding Flange-JIS Flange


The core function of the welding neck flange is to improve the strength and tightness of pipe connections via its neck structure. It is especially suitable for severe working conditions with high temperature, high pressure and drastic cyclic loading.

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Flange Pipe Fittings Basic Classification Introduction


Flange pipe fittings serve as vital connecting components widely adopted in industrial pipeline systems for fluid transmission, equipment assembly and pipeline maintenance.

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Global Standard Comparison of Export Flange Pipe Fittings


Export-oriented flange pipe fitting manufacturers need to master major international industrial standards to meet different regional client requirements.

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Manufacturing Process of Carbon Steel Flange Fittings


Carbon steel flange pipe fittings remain the most widely used connection accessories in general industrial pipelines due to balanced cost and mechanical performance. The mainstream manufacturing routes include forging, casting and plate cutting, among which forged flanges occupy dominant positions for pressure-bearing pipeline applications.

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Stainless Steel Flanges for Corrosive Pipeline Systems


Corrosion is one of the major threats shortening pipeline service life, and stainless steel flanges become preferred flange pipe fittings for media with corrosivity.

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Lapped Joint Flange Characteristics and Applicable Scenarios


Lapped joint flange assemblies consist of two independent parts: loose flange plate and pipe lap stub end. Different from integral welding flanges

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Blind Flange Application and Safety Operation Specifications


Blind flanges, also named blank flanges, are an important category of flange pipe fittings, applied to block pipeline ends

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