Double Male Reducing Union


  • Provides ultra-high purity Metal to metal seal for vacuum and positive pressure applications.
  • Sealing is accomplished by compressing the gasket between the two beads during assembly of the male nut or body and female nut.
  • The Internal surface finish of the female nut is silver plated to ensure consistent, low make up torque.Plating
  • Female Nut-The Internal surface of the nut is silver plated to avoid galling and reduce the tightenign torque.
  • Gasket options Include-Silver plated stainless steel 316L, Nickel plated, unplated nickel or special request.Testing
  • ZCR Fittings have been helium leak tested to a rale of 1 X 10-10atm/cc/sec with unplated, silver plated and copper gasket.
  • Optional tests are available upon request.


Product Dimension d (in) Dimension d (mm) Dimension d1 (in) Dimension d1 (mm) Dimension H (in) Dimension L (in) Dimension L (mm) ZCR End 1 Size (in) ZCR End 2 Size (in) PDF
H-ZUR4-2 0.180 4.55 0.090 2.30 5/8 1.370 34.80 1/4 1/8 PDF
H-ZUR8-4 0.400 10.14 0.180 4.55 15/16 1.710 43.40 1/2 1/4 PDF

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