Stainless steel end cap

This stainless steel end cap is a high-quality butt-weld pipe fitting designed to seal the ends of pipes and vessels. Featuring a hemispherical/dished head structure with a precision-machined beveled edge, it ensures strong, leak-proof welding. The natural stainless steel metallic finish offers excellent corrosion resistance, making it ideal for high-pressure and corrosive industrial environments.

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Structural Advantages & Characteristics

Secure Sealing: Dished/hemispherical head design effectively withstands high pressure and temperature, providing permanent pipeline closure.

Precision Welding: Standard beveled end (per ASME B16.25) ensures deep penetration and reliable butt-weld joints.

Corrosion Resistance: Natural stainless steel surface (no external coating needed) resists rust, acids, and corrosive media (water, steam, oil, chemicals).

High Pressure Rating: Suitable for PN16~PN160 (Class 150~Class 900) applications based on wall thickness.

Material Versatility: Available in SS304, SS316, SS321, etc., adaptable to various industrial demands.

Specifications & Dimensions (Reference)

Parameter	Specification Options
Product Type	End Cap / Pipe Cap (Dished Head)
Nominal Size (DN)	DN15 ~ DN600 (1/2" ~ 24")
Pressure Rating	PN16 ~ PN160 (Class 150 ~ 900)
Wall Thickness (Sch)	SCH10, SCH40, SCH80, SCH160
End Connection	Butt-Weld (Beveled Edge)
Material (Body)	Stainless Steel (SS304, SS316, SS321)
Surface Finish	Natural Stainless Steel (Metallic)
Standards	GB/T 12459, ASME B16.9, GB 13401

Key Dimensions (Typical End Cap)

DN (NPS)	Outside Dia. (D)	Cap Height (H)	Wall Thickness (T)
15 (1/2")	21.3 mm	25 mm	3.0 mm
25 (1")	33.4 mm	32 mm	3.5 mm
50 (2")	60.3 mm	51 mm	4.0 mm
100 (4")	114.3 mm	76 mm	6.0 mm

Applicable Media & Temp

Media: Water, Steam, Oil, Chemicals, Corrosive Fluids.

Temperature: -196°C to 800°C (Varies by stainless steel grade).

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Stainless steel end cap

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