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Galvanized Pipe Fittings Hexagon Cap Fig.300

The Hexagon Cap Fig.300 is a threaded pipe fitting used to seal the end of a pipe in gas and water supply systems. Made from malleable iron and finished with a galvanized coating, this cap provides long-term corrosion resistance and secure sealing — either permanent or temporary — across industrial and residential systems.

Why Choose Jianzhi Hexagon Cap?
Using cast iron threaded fittings helps protect the entire pipeline from leaks, pressure loss, or breakage — not just at the joints, but across the full system. Jianzhi produces hex caps that meet international standards and certifications.

Product Specifications

  • Size Range: 3/8"–2" (DN10–DN50)

  • Standard: EN10242 / ANSI / ASME B16.3 / DIN2950 / ISO 49 / NBR6943 / IS1879 / BS EN10242

  • Threading: EN10226 / ASME B.1.20.1 / DIN2999 / ISO7-1 / ISO228

  • Material: Malleable Iron

  • Max Pressure: 25 BAR / 363 PSI / CLASS 150

  • Max Temp: 200°C (392°F)

  • Tensile Strength: 350 MPa

  • Hardness: HB150

  • Elongation: 10%

  • Applications: Water, Oil, Gas, Petrochemical

Fitting Size vs DN Chart

Fitting SizeDN (Nominal Size)
1/8 6
1/4 8
3/8 10
1/2 15
3/4 20
1 25
1 1/4 32
1 1/2 40
2 50
2 1/2 65
3 80
4 100
5 125
6 150

Explore more options in black pipe fittings and complete your system with trusted, certified products from Jianzhi.


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