Welcome to our Steel Worlds Industries
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Key Features:
Detachable Connection: The stub end provides a permanent welded connection to the pipe, while the lap joint flange remains loose, allowing for easy rotation, alignment, and dismantling of the pipe.
Versatility of Materials: Available in materials like carbon steel, stainless steel, alloy steel, copper, and plastic (PVC, CPVC), ensuring adaptability to a variety of applications and environments.
Pressure and Temperature Ratings: Designed to handle specific pressure and temperature conditions based on the material and system requirements.
Common Types:
Long Pattern Stub End: Commonly used in high-pressure applications. It has a longer hub and is used with lap joint flanges, especially in high-temperature and heavy-duty systems.
Short Pattern Stub End: Ideal for low-pressure applications, it has a shorter hub and is used where frequent dismantling is necessary but the system does not face high pressure or temperature.
Standards and Specifications:
ANSI/ASME B16.9: Standard for factory-made steel buttwelding fittings, including stub ends.
ASTM A403: Specification for wrought stainless steel pipe fittings for pressure piping.
ASTM A234: Standard for carbon and alloy steel fittings for high-temperature service.
ISO 9001: Ensures the manufacturing quality of stub ends and lap joint fittings.
| Property | Details |
|---|---|
| Function | Connects pipes using a welded stub end with a loose lap joint flange for easy disassembly and alignment |
| Common Types | Long Pattern Stub End, Short Pattern Stub End |
| Materials | Carbon Steel, Stainless Steel, Alloy Steel, Copper, PVC, CPVC |
| Pressure Ratings | Varies by material and design; typically high pressure for metal fittings |
| Temperature Ratings | Depends on material; metal options can withstand temperatures from -50°F to 1500°F |
| Connection Types | Welded with loose lap joint flange |
| Standards and Specifications | ANSI/ASME B16.9 (Steel), ASTM A403 (Stainless Steel), ASTM A234 (Carbon Steel), ISO 9001 (Quality) |
| Available Sizes | Typically from 1/2” to 24” diameter or larger |
| Surface Finishes | Bare, Galvanized, Epoxy Coated, Polyurethane Coated for corrosion protection |
| Applications | Chemical and Petrochemical, Water Treatment, Oil and Gas, Food and Beverage |
| Advantages | Easy assembly/disassembly, cost-efficient, rotational alignment, durable |