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Pioneered by Douglas Electrical Components, Portplate systems are fully assembled and pre-tested multi-port, custom hermetic feedthrough systems for pressure and vacuum applications. Customize the mechanical interface and mix and match electrical connection types to create a single, hermetic assembly.  Portplates can be provided with or without hermetically sealed connectors and are shipped as ready-to-install assemblies.

Portplates are available in various mechanical interfaces to match your geometric and sealing requirements for both power and signal applications operating under vacuum and positive pressures. Whether we utilize our in-house machining or partner for customer-supplied components, Douglas Electrical will work to build a cost-effective, hermetic system that reduces cost and leak paths with a single plate. The bulkhead interface can be a variety of fittings including flanges, threaded adapters, and O-ring assemblies. Multiple feedthroughs on a single plate can minimize time and costs associated with troubleshooting and testing.  Portplate assemblies are available in sizes ranging from 6 to 48 inches in diameter and offer full strain relief. We also offer vacuum outgassing bake-out for components or entire units.

Accommodate any configuration.

Portplates are available to accommodate mixed configurations of feedthroughs including Ductorseal® hermetic wire feedthroughs, StudSeal™ high power feedthroughs, Optiseal™ fiber optic cables, and PotCon® bulkhead connector feedthroughs.

Features

FEEDTHROUGH PERFORMANCE CAPABILITIES
  • 1×10-9 cc-He/sec per feedthrough
  • Pressures of 15,000 psi
  • Operating temperatures range from 4 K (LHe) through high temperatures of 200°C
  • Full strain relief available for cable assemblies
COMMON FEEDTHROUGH TYPES
  • Face-Mount housings (2.75”, 3.75”, 4” etc.)
  • Push-in feedthrough seals for wires or connectors
  • Convenience feedthroughs (110V) for quick 110 VAC connections
  • ISO Flanges
  • ASME Flanges and plates
  • Weld neck Flange (contact factory)
  • Square/Rectangular flange
  • Custom vacuum flange and plate designs
COMMON WIRE AND CABLE TYPES
  • Individual wires (PTFE, PVC, etc.)
  • Jacketed cable
  • Coaxial cable
  • Thermocouple
  • Customized assemblies with integral connectors
MARKET CAPABILITIES
  • ISO 9001:2015
  • ISO 14001:2015
  • ITAR DDTC Registration

FAQ

What are the clearance requirements for Portplate designs?

PotCon connectors require a 2” minimum clearance around the housing for hand access to tighten or loosen connector locking rings. ace seal housings for harness feedthroughs (jam nut mounting) require a 1″ minimum clearance for wrench access to make up the jam nut. Face mount housings require only a 1/2″ clearance around the housing OD for the clamps (be sure to stagger the clamps of adjoining housings).

Can I customize a Portplate?

Yes. Douglas Electrical Components will partner with you during the design process to specific the cables and connectors required to optimize the design. While our products are customized, our lead times are also very competitive with other customized assemblies as well as some standard products by utilizing LEAN manufacturing and maintaining in-house capabilities such as machining.

What feedthrough materials are available?

While aluminum and stainless steel are the most common materials for Portplates, we design and manufacture with dielectric materials such as G10 Garolite.

Are Portplates used in applications other than vacuum chambers?

Yes. While this product line is popular in vacuum chamber and semiconductor manufacturing applications, it is also used in various industrial and OEM applications such as compressor power feedthroughs. Portplates are simply a way to easily mount a hermetic electrical feedthrough.

Do Portplates survive cryogenic temperatures?

Yes, our electrical feedthrough will operate at 4K (LHe). Our unique manufacturing and material combination enable us to combat mismatches in material expansion, commonly measured as the coefficient of thermal expansion, or CTE.

Image Library

Some of our various custom Portplate assemblies

Images
Hermetic Portplate Electrical Feedthrough Assembly with 10 D-sub Connectors

Hermetic D-sub Portplate Electrical Feedthrough Assembly

Hermetic Portplate Electrical Feedthrough Assembly with 10 D-sub Connectors

Custom Portplate assembly with integral coaxial connectors

Portplate Coaxial Plate Assembly

Custom Portplate assembly with integral coaxial connectors

Vacuum Portplate assembly

Vacuum Portplate assembly

Douglas is your one-stop-shop for fully assembled and tested port plate assemblies, combining various electrical connection types into a custom assembly.

hermetic mil plate assembly

Custom Hermetic Plate Assembly

Plate assemblies available for various Military and Aerospace applications.

Micro-D Hermetic assembly; customers can design multiple connectors within a PortPlate, custom design a solution, or choose a standard hermetic Micro-D feedthrough with reversible mounting

Micro-D Hermetic Portplate Assembly

Micro-D Hermetic assembly; customers can design multiple connectors within a PortPlate, custom design a solution, or choose a standard hermetic Micro-D feedthrough with reversible mounting

Dsub hermetic flange feedthrough assembly

D-sub Hermetic Flange

D-sub hermetic flange feedthrough assembly. Integrate D-sub connectors as part of the flange or order independent connectors with reversible mounting.

Portplate Assembly with connectors

Hermetic Connectorized Portplate Assembly

Customized flange with integral MIL-spec connectors. Configure with either plugs or receptacles.

RBTW Portplate hermetic feedthrough

RBTW Portplate Hermetic Feedthrough

RBTW Portplate hermetic feedthrough built with integral wire harnesses to simplify installation.

Combine power and signal feedthroughs into a single PortPlate design.

Power and Signal Hermetic Flange

Combine power and signal feedthroughs into a single PortPlate design.

StudSeal hermetic terminal seal plate assembly

Hermetic Terminal Plate Assembly

Customized hermetic terminal plate assembly

Customized hermetic terminal plate assembly

StudSeal Copper Terminal Plate

Customized hermetic terminal plate assembly

StudSeal rectangular flange power feedthrough

StudSeal rectangular flange power feedthrough

StudSeal Portplate assembly reduces installation time and leak paths in compressor and other industrial applications.

Custom hermetic plate with 6 USB 3.0 front

Custom USB Hermetic Plate

Custom hermetic plate with 6 USB 3.0 connectors

custom material Portplate design with Potcon connector feedthroughs and coaxial feedthroughs

Custom Material Portplate

Custom material Portplate design with PotCon connector feedthroughs and coaxial feedthroughs.

Portplate hermetic feedthrough flange with PotCon electrical feedthroughs

RBTW PortPlate

Portplate hermetic feedthrough flange with PotCon electrical feedthroughs

Customized assembly with various plug and receptacle connectors for a high-density feedthrough

Portplate Electrical Feedthrough Flange

Customized assembly with various plug and receptacle connectors for a high-density feedthrough

Documents & Downloads

Documents
Douglas Electrical Components Catalog Cover

Douglas Electrical Components Catalog

PDF Catalog

Aerospace & Defense Capabilities Brochure

PDF Catalog
space simulation feedthru cover page

Space Simulation Application Note

PDF Catalog

Hermetic Feedthroughs Prepare Dragonfly Rotocraft for Titan Mission

PDF Catalog
military plate assemblies

Hermetic Plate Assemblies for Aerospace & Defense

PDF Catalog

The Six Challenges Of Specifying And Procuring Hermetic Feedthroughs For Space Simulation

PDF Catalog

Meeting Feedthrough Challenges on the A-3 Test Stand

PDF Catalog
hermetic feedthrough whitepaper image

Hermetic Feedthroughs for Magnetic Bearing Chiller Compressors

PDF Catalog

New Cryogenic Feedthrough Improves Ease-Of-Use

PDF Catalog
Certificates

ISO 9001:2015 Certificate

PDF Catalog

ISO 14001:2015 Certificate

PDF Catalog

ITAR-DDTC Registration

PDF Catalog

UL984 Standard for Hermetic Refrigerant Motor Compressors

PDF Catalog

UL764 Component Wiring Harnesses approval

PDF Catalog