Stainless tube cap is a component used to seal the ends of pipelines or container interfaces. The head is a component of the container. Based on different geometric shapes, it can be classified into several types, such as spherical, elliptical, dished, spherical crown, conical shell, and flat head. They are applied to various container equipment, including storage tanks, heat exchangers, towers, reaction kettles, boilers, and separation equipment.

Product Parameters

Parameter	Description
Material	304, 304L, 316, 316L, and other stainless steel grades
Size	DN15 ~ DN2000 (customizable as required)
Thickness	1mm ~ 50mm (adjusted based on pressure rating and size)
Pressure Rating	PN6 ~ PN40, Class150 ~ Class2500
Connection Type	Butt weld, threaded, flanged, etc.
Surface Treatment	Polishing, sandblasting, pickling, passivation, etc.
Standards	GB/T 25198, ASME B16.9, HG/T 20592, etc.
Operating Temperature	-196℃ ~ 800℃ (depending on material)

Product Advantages

Strong Corrosion Resistance: Stainless steel material offers excellent resistance to acids, alkalis, and salt corrosion, suitable for harsh media environments.
Sturdy Structure: High-quality forming process ensures strong pressure-bearing capacity and reliable sealing performance.
Long Service Life: Stainless tube cap material is oxidation-resistant, high-temperature resistant, and less prone to aging, resulting in low maintenance costs.

Main Applications

Chemical and Petroleum Industries: Sealing and maintenance of storage tanks, reactors, and piping systems.
Food and Pharmaceutical Equipment: Sealing for sanitary pipelines, tanks, and mixing equipment.
Water Treatment and Environmental Engineering: Sealing for wastewater pipelines, filters, and pressure vessels.

Frequently Asked Questions (FAQ)

Q1: Will stainless tube cap rust easily?

A1: Made of 304/316 stainless steel, it offers excellent corrosion resistance and is unlikely to rust under normal conditions. For long-term use in high-chloride environments (e.g., coastal or chemical industrial areas), 316L material is recommended along with regular maintenance to ensure extended service life.

Q2: Is it easy to install, and can it fit existing pipelines?

A2: It supports various connection methods such as butt welding, threaded, and flanged connections. Available in multiple sizes (DN15–DN2000) and customizable according to drawings, it is easy to install and highly compatible. Simply provide your pipeline dimensions and connection type for an accurate match.

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