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EVAC Seals, Clamps & Bolt Kits

EVAC-manufactured CeFix aluminum seal rings and chain clamps are the proper choice to achieve UHV and XHV grade seals with EVAC tapered flanges. 

The aluminum seal rings locate on the centering ring groove (inner centering) or outside edge of the flange (outer centering), depending on the size. (Inner and outer centering versions are available for all NW flange sizes.)

High-integrity UHV metal seals can also be achieved using standard ISO-KF (NW) flanges, in which case the Teflon-coated chain clamps should be used.  The less costly uncoated version chain clamp is sufficient when the system contains the genuine EVAC tapered flange.

EVAC Seals, Clamps & Bolt Kits Features

  • Captured O-ring seal assemblies
  • Genuine EVAC manufacture CeFix aluminum seals
  • Uncoated or Teflon coated chain links
Nor-Cal Products Inc dba Pfeiffer Vacuum Valves & Engineering manufactures and provides a full line of flanges, fittings, and adapters for vacuum applications. We offer ISO-KF (NW), ISO-K, ISO-F, CF (Conflat), ASA, Wire Seal, and EVAC Chain Clamp style flanges and fittings to fit almost every application. Custom flanges are available upon request.

We specialize in manufacturing components from 304 or 316 stainless steel, with several items available in aluminum as well. Centering rings, gaskets, clamps, bolts, and other hardware components are available to complete your project. PV V&E proudly maintains a large inventory for prompt deliveries and to meet those unexpected demands.

Custom EVAC Seals, Clamps & Bolt Kits

Our elite team of designers and engineers is dedicated to producing the highest quality, ISO 9001:2015-Certified EVAC Seals, Clamps & Bolt Kits to meet your application requirements. We start with select grade 304 stainless steel to produce the highest-grade corrosion resistant Seals, Clamps & Bolt Kits. Our CNC machining and tube bending capabilities allow us to form close tolerances and manufacture custom components to your specifications. We can manufacture kits to meet low to high-volume orders and form fulfill Ultra-Clean (UCV) components. Our manufacturing capabilities also include electropolishing and cleanroom assembly and packaging services. PV V&E's additional strong in-house capabilities support the quality of our components and services in a variety of areas, including Engineering, Logistics, and Quality Assurance.

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