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Parker UltraSealtm Fittings

UltraSeal Fittings


Parker UHP fittings are designed as leak-free connections where ultrahigh pure conditions are required. UltraSeal™ products, with their o-ring face seal design, and optional metal o-ring, provide a leak-free seal from vacuum to positive pressure.

Cleaning and Packing

Ultra-High Purity cleaning and packing in a class 100 clean room environment, is standard for all UHP UltraSeal™ components.


Parker High Purity Components are rated to a helium leak rate of 1 x 10-9 cc/sec utilizing a helium mass spectro meter. Temperature ratings are governed by the choice of o-ring seal materials.

321 Stainless Steel: (Silver or Nickel plated): -350° to +1000° F (-212° to +538° C)

Fluorocarbon: -15° to +400° F(-26° to +204° C)

PTFE: -50° to +400° F(-46° to +232° C)


Pressure ratings will be governed by the gland selected for a particular system. Working pressures are rated at room temperature based on a 4-to1 design factor. Pressure ratings are calculated in accordance with A.N.S.I. Power Piping Code B31.1.


UltraSeal components are available in standard 316L, 316L VAR, and 316L VIM/VAR Stainless Steels. Consult your local Parker dis tributor or factory for details. Refer to tables 1 and 2 for respective material specifications of gaskets and o-rings.

Interior (I.D.) Surface

Finishes Parker High Purity components can be supplied with extremely low Ra internal surface finishes to meet requirements of ultra-high purity tubing systems. Consult your local Parker distributor or the factory for more information.

KC Controls HB series Ball Valves  UltraSeal Fittings Data Sheet

For more information click on the pdf image above for full specifications, call KC Controls on 01293 538940 or send us an e-mail to