IMPA: 734601

Slip-On Welding Steel Pipe Flanges – Marine Grade Pipe Fittings

Our slip-on welding steel pipe flanges are specifically designed for marine and offshore piping systems. These flanges slip over the pipe end and are fillet welded, providing a secure and reliable connection that meets the demanding requirements of shipbuilding and marine engineering. Available in a range of materials, sizes, and pressure ratings, they are a cost-effective solution for low-pressure piping applications while maintaining excellent structural integrity.

Manufactured to recognized international standards, these flanges offer outstanding compatibility with existing piping systems. Whether you are retrofitting a vessel or building new, our flanges deliver consistent performance and ease of installation. As a dedicated marine ship chandler, we ensure every flange meets the highest quality expectations for service in harsh saltwater environments.

Choose from carbon steel, stainless steel, and other alloys to match your specific application. With extensive stock availability and tailored procurement options, we support commercial and naval vessels alike, ensuring you receive the right components when you need them.

Key Features

Technical Specifications

SpecificationDetails
StandardANSI/ASME B16.5, DIN, JIS
Size Range1/2" to 24" (DN15 to DN600)
MaterialCarbon Steel (ASTM A105), Stainless Steel (304/316), Alloy Steel
Pressure Rating150# to 600# (PN16 to PN100)
Weld TypeFillet Weld
Surface FinishAnti-corrosive oiled, or galvanized on request
ApplicationMarine piping system, shipbuilding, offshore platforms

Frequently Asked Questions

What is a slip-on welding flange?

A slip-on welding flange is a type of pipe flange that slides over the pipe and is then welded in place using fillet welds. It provides a secure connection and is used in low-pressure marine piping systems.

What standards are available?

We offer slip-on flanges manufactured to ANSI/ASME B16.5, DIN, and JIS standards, ensuring compatibility with international shipbuilding specifications.

What materials are available?

Available materials include carbon steel (ASTM A105), stainless steel (grades 304/316), and alloy steel. The choice depends on your specific marine environment and corrosion resistance requirements.

How do I select the correct size and pressure rating?

Refer to your piping system's nominal pipe size (NPS) and required working pressure. For low-pressure marine applications, a 150# rating is commonly used, but we can supply higher ratings up to 600# on request.

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