Insulating Joint – Cangzhou Huairong Pipeline Equipment Co., Ltd.

PRODUCT PARAMETERS

The Insulating Joint is a key electrical insulation and anti-corrosion safety component in pipeline systems. It consists of an insulating sleeve, insulating gasket, sealing ring, and pipe segment/flange ends.

Its core functions are to prevent electrical current conduction between pipelines, protect against electrochemical corrosion and stray current damage, while ensuring mechanical strength and sealing performance. It is an essential protective part for long-distance oil & gas transportation, buried pipelines, and chemical anti-corrosion applications.

Application Fields: Widely used in petroleum, chemical, oil & gas transportation, power & energy, and long-distance pipeline industries. Suitable for buried pipelines, oil & gas transmission lines, and piping systems with high anti-corrosion requirements—especially in scenarios requiring current isolation to prevent electrochemical corrosion in buried and long-distance pipeline projects.

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Description

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Description

Item	Specification
Product Size	DN15–DN1200 (1/2″–48″) and other common specifications; customization available
Pressure Rating	PN6–PN100 / Class 150, Class 300, Class 600 (customized according to wall thickness and pipe schedule)
Manufacturing Standards	Complies with GB, ANSI, DIN, JIS and other international standards
Material	Carbon steel, stainless steel, alloy steel, pipeline steel, low-temperature steel, duplex steel, etc.
Surface Treatment	Pickling and passivation, anti-rust oil coating, painting, hot-dip galvanizing, sandblasting, etc., as per customer requirements
Origin	China
Connection Type	Butt-welded
Temperature Range	-50°C ~ +450°C (specific temperature resistance depends on material and application conditions)

FAQs

Are you a manufacturer or a trading company?

Can you manufacture customized flanges and pipe fittings?

Yes. In addition to standard products, we provide customized flanges and pipe fittings according to customers’ drawings, technical specifications, material requirements, dimensions, pressure ratings, surface treatments, and application conditions. Our production facilities support forging, pressing, machining, cold forming, hot extrusion, heat treatment, and other manufacturing processes.