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Stainless steel vacuum fitting cap, clamp type, 1 1/2 inch, polished finish

Usa Sealing

Usa Sealing ZUSA-TF-VAC-75 Vacuum Fitting Cap Stainless Steel 1 1/2 in Clamp 304 320 Degrees F 2.156 in Flange

SKU CH-RF3C-P8KSK

Stainless steel 304 vacuum cap for 1 1/2 in clamp fittings, rated to 320 °F and 10-7 torr vacuum at 72 °F

  • 304 stainless steel resists corrosion in demanding environments
  • Withstands 320 °F continuous service for high-temperature lines
  • Vacuum rated to 10⁻⁷ torr for reliable seal integrity
  • Autoclave compatible for sterile processing requirements
  • 1 1/2 in clamp connection fits standard flange dimensions

Vacuum Fitting Cap 1 1/2 in Clamp

This vacuum fitting cap seals 1 1/2 inch stainless steel tubing using a clamp connection. It is built from 304 grade stainless steel for corrosion resistance in air and potable water systems. The cap meets GB4982-ISO-K standards and is rated for vacuum levels of 10-7 torr at 72 degrees F. Autoclave sterilization is recommended for sanitary applications.

Upgrading from worn or non-standard caps

Replace damaged caps or mismatched fittings that leak under vacuum or fail at temperature. The jump is worth it when a system requires the 320 degree F maximum operating temperature and the precise 2.156 in flange outside diameter. It also suits lines that must hold 10-7 torr vacuum without outgassing from inferior materials.

Integration into stainless vacuum lines

The clamp fitting connects directly to compatible 1 1/2 in outer diameter stainless tubing with a 2 5/32 in flange. No welding or threading is needed, which speeds assembly and allows disassembly for cleaning. The 304 stainless construction matches the tube material to avoid galvanic issues. The cap frees up maintenance time by surviving repeated autoclave cycles.

Highlights

  • 304 stainless steel resists corrosion in demanding environments
  • Withstands 320 °F continuous service for high-temperature lines
  • Vacuum rated to 10⁻⁷ torr for reliable seal integrity
  • Autoclave compatible for sterile processing requirements
  • 1 1/2 in clamp connection fits standard flange dimensions

Specifications

BrandUSA INDUSTRIALS

Questions about this item

What clamp size and flange diameter does the ZUSA-TF-VAC-75 cap fit?

The cap uses a 1 1/2 in clamp connection and matches a 2.156 in flange outside diameter, compatible with 2 5/32 in flanges per GB4982-ISO-K.

How do you install the clamp cap and what step is often missed?

Slide the cap over the 1 1/2 in tube, align the 2.156 in flange faces, then tighten the clamp evenly; the step often missed is confirming the flange faces are clean and parallel before torquing.

When should the 304 stainless cap be replaced under vacuum service?

Replace if the flange sealing surface shows pitting, scratches or deformation that prevents a 10-7 torr seal at 72 Degrees F, or after repeated autoclave cycles at 320 Degrees F degrade the surface finish.

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