ISO-K blank flange DN400ISO, OD = 450mm, stainless steel 316L

🧩 ISO-K Flanges – Precision Fit, Global Compatibility

Our ISO-K flanges are fully compliant with ISO 1609 specifications, ensuring seamless integration into international vacuum systems. These flanges match the ISO NW standard and are compatible with components from leading European manufacturers.

🔧 Key Features:

• Precision-Machined: Made from solid aluminum, SS304, or 316L stainless steel for exceptional durability and a flawless, gap-free finish.
• Versatile Compatibility: Identical to ISO NW flanges, with dimensions listed in millimeters for easy reference.
• Blank Options Available: Also known as Blind Flange ISO-K, perfect for sealing off unused ports.

📐 Specifications:

• Sizes: DN63 to DN320
• Pressure Range:
  • With elastomer seal: >1 × 10⁻⁷ mBar to 1.5 bar
  • With metal seal: >1 × 10⁻⁹ mBar to 1.5 bar
• Temperature Range:
  • Viton: –20 °C to +200 °C
  • Buna: –30 °C to +110 °C
  • Metal seal: –270 °C to +150 °C