Seals, Clamps, and Bolt Kits

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O-Rings, Sealing Bolts, and Additional Metal Vacuum and UHV Components

Proper fastener and sealing hardware are critical to making vacuum-tight connections. Pfeiffer Vacuum Valves & Engineering offers a complete range of clamps, bolt-kits, gaskets, seals, and centering rings to fit all our products. Our high vacuum and UHV components are intended for ISO-KF (NW), ISO-F, ISO-K, CF (Conflat), ASA, Wire Seal, and EVAC flange systems.

Seals, Clamps, and Bolt Kits Features

  • Aluminum and steel clamps and hardware
  • Elastomer seal rings in a ranges of materials including FKM, FFKM, Silicon, Buna and more
  • Intended for ISO-KF (NW), ISO-F, ISO-K, CF (Conflat), ASA, Wire Seal and EVAC flange systems.
  • Metal UHV seals including copper, silver plated copper and aluminum

Every Pfeiffer Vacuum Valves & Engineering seal, clamp and bolt kit is manufactured  to ensure you receive high-performance vacuum parts to enhance your existing vacuum system. These versatile vacuum components are compatible with flanges and fittings from most other global manufacturers adhering to ISO design standards. 

Request a quote on our stainless steel vacuum seals, clamps, and bolts or contact us online to learn more about our safety-tested systems and components.

ISO-KF (NW) Sealing Hardware

We offer ISO-KF components, including Wing Nut Clamps, ISO-KF Bulkhead Clamps, ISO-KF Centering Ring w/ O-Rings, and additional components available in aluminum, 304 stainless steel, and 316 stainless steel. Reducer centering rings and screened centering rings are available.

ISO-K / ISO-F Sealing Hardware

PV V&E’s ISO-K / ISO-F parts can be joined with single-and double-claw clamps. Single-claw clamps can join an OF flange to a tapped nonrotatable on a pump or gate valve, while double-claw clamps are used when a pair of OF flanges need to be joined. Over pressure and retainer spacer rings are optional.

ConFlat (CF) Sealing Hardware

Copper gaskets and, if preferred, silver-plated gaskets help ensure the resultant seal is UHV vacuum-tight and process chemistry compatible. Our ConFlat fastener kits and hardware make joining ConFlat flanges quick and easy. Gaskets are sold individually or in bulk.

ASA Sealing Hardware

We have high-grade stainless-steel ASA bolts and fastener hardware. Properly sized O-ring seals help assure the resultant seal is vacuum-tight and the vacuum process is chemistry compatible.

EVAC Sealing Hardware

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

Wire Seal Sealing Hardware

We provide bolt and nut kits with the correct number of fasteners for each flange size. 18-8 stainless steel bolt kits and OFHC copper wire seal gaskets ensure tight seals on most flange combinations.

Seals, Clamps, and Bolt Kits Features

The exact benefits of each Pfeiffer Vacuum component vary depending on the flange type and material used. General features of PV V&E seals, clamps & bolt kits include:
  • Aluminum and steel clamps and hardware
  • Elastomer seal rings in a range of materials, including FKM, FFKM, Silicon, Buna, and more
  • Metal UHV seals, including copper, silver-plated copper, and aluminum
  • ISO 9001: 2015 certified

Why Choose PV V&E for UHV Seals, Clamps & Bolt Kits?

Nor-Cal Products, Inc dba Pfeiffer Vacuum Valves & Engineering is dedicated to continually improving our prototyped and manufactured goods through implementing a carefully planned quality management system. Our strong in-house capabilities support the quality of our components and services in a variety of areas, including LogisticsManufacturing, and Quality Assurance. We strive to meet our primary goal of 100% customer acceptance by manufacturing defect-free parts with on-time delivery, competitive pricing, and the best possible customer service.

Contact PV V&E for Bolt Kits, O-Rings, Seals, and More

Request a quote on our custom vacuum chamber hardware or contact us online to learn more about our safety-tested systems and components.

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