Feedthrough Design Guide
68Pages

Douglas Electrical Components Ductorseal® Hermetic Feedthrus Hermetics Product Catalog

About Douglas Electrical Douglas Electrical Components pioneered the development and practical application of epoxies to feedthru technology in 1977. Our first product was an NPT epoxy body sealing short lengths of #14 and #24 AWG wires. From that first innovative wire harness feedthru we developed the product lines which are offered in the following pages. The evolution of these product lines has been in response to solving conductor sealing problems which our customers brought to us. It is this precept which has resulted in the diversification of the product - virtually every product...

Table of Contents Sealed Wire & Cable Assemblies These feedthru seals provide a sealed interconnecting harness in a single, pre-tested, ready-to-install assembly. Virtually any wire, cable, or harness can be hermetically sealed. Many applications cannot use the wire harness feedthru approach because of a requirement to have a disconnectable circuit at the pressure bulkhead or vacuum port plate. PotCon™ hermetically sealed connectors are easily specified from these tables. Sealed Studs and Motor Terminals These StudSeal® feedthrus are widely used in transformers, hermetically sealed...

Sealed Wire & Cable Assemblies Sealed Wire Harness Feedthru Assemblies This section describes our unique line of sealed conductors, including wires, cables, and harnesses. We can permanently and hermetically seal virtually any conductor through any housing. • The circuit density (number of circuits per square inch of port plate) can be increased by a factor of up to 10, versus hermetic pin and socket connectors. This can eliminate entire ports or penetration plates and can free up existing space for other circuits or penetrations. Advantages of Direct Wire Harness Hermetic Feedthrus: The...

Sealed Wire & Cable Assemblies A Typical Wire Harness Feedthru A "TYPICAL" HOUSING (WE OFFER HUNDREDS OF DIFFERENT SIZES AND SHAPES.) YOU SPECIFY THE LENGTH WE PERMANENTLY AND HERMETICALLY SEAL THE CONDUCTOR BUNDLE TO THE HOUSING. General Notes, Specifications Material Specifications Brass: ANSI CDA 360 Pressure or Vacuum Limits (-40ºF to +250º F)* Housing Vacuum Limit Pressure Limit Stainless Steel: 300 Series Straight Thread Vacuum Face Seal Insulation: As described in charts Vacuum Flange *Consult us if higher limits are needed. Epoxy Characteristics Vacuum Outgassing: 25mm2 x 1mm sample...

Sealed Wire & Cable Assemblies Standard Wire Harness Feedthrus (NPT Housings) * Stranded, MIL -spec #24 AWG 1000v Teflon® Insulation Stranded, MIL -spec #20 AWG 1000v Teflon® Insulation Stranded, MIL -spec #16 AWG 1000v Teflon® Insulation Stranded, MIL -spec #12 AWG 1000v Teflon® Insulation * Housing dimensions are on page 10 and 11. To Order: Specify the catalog number of the housing style, wire style, and count you need. For copper conductors, append two dash numbers for the A lead length and the P lead length Douglas Electrical Components Thermocouple #24 AWG Duplex Teflon® Insulation...

Sealed Wire & Cable Assemblies Standard Wire Harness Feedthrus (Pressure Housings) * Stainless Steel Face Seal Housing, Pressure Appl. Bullet Hub Steel (Zinc Chromate) Stranded, MIL -spec #24 AWG 1000v Teflon® Insulation Stranded, MIL -spec #20 AWG 1000v Teflon® Insulation Stranded, MIL -spec #16 AWG 1000v Teflon® Insulation Stranded, MIL -spec #12 AWG 1000v Teflon® Insulation 2 Thermocouple #24 AWG Duplex Teflon® Insulation ISA Type E,J,K or T * Housing dimensions are on page 10 and 11. To Order: Specify the catalog number of the housing style, wire style, and count you need. For copper...

Sealed Wire & Cable Assemblies Standard Wire Harness Feedthrus (Vacuum Housings) * "O" RING Flange (Varian® Style) Vacuum Face Seal with Cable Clamps Stainless Steel Housing, Aluminum Clamps Stranded, MIL -spec #12 AWG 1000v Teflon® Insulation Stranded, MIL -spec #16 AWG 1000v Teflon® Insulation Stranded, MIL -spec #20 AWG 1000v Teflon® Insulation Stranded, MIL -spec #24 AWG 1000v Teflon® Insulation Thermocouple #24 AWG Duplex Teflon® Insulation ISA Type E,J,K or T * Housing dimensions are on page 11. To Order: Specify the catalog number of the housing style, wire style, and count you need....

Sealed Wire & Cable Assemblies Custom Feedthrus Fabricated to Your Specifications A B C Illustrations of various NPT housings with wire harnesses sealed through: A - 1" NPT Nipple B - 3/8" NPT Nipple C - 1" Plug D - 3/8" Plug Face Seal “O" Ring pressure housings seal harnesses over wide pressure ranges: E & F - NPT Female to Face Seal Bullet Hub housings, 1" and 1/2" sizes G & H - 11/16" and 3/4" SAE fittings seal to 3,000 psi. I & J - Pressure face seal housings install through bored hole for an easy solution to mounting problems... 11/16" and 3/8" sizes illustrated. I J Vacuum seals with...

Sealed Wire & Cable Assemblies Custom Wire Harness Feedthrus in Standard Housings Design Instructions To specify housings for your custom designed feedthru using the worksheet below: Note that this process may be reversed if you know which housing you require and need to calculate the number of wires which can fit into it. 1. Define your wire “packages”. For multiple feedthru jobs, group wires for your convenience either for physical location, electrical considerations (i.e., not having power lines next to low level circuits) or both. Design Example 2. For each wire type and gauge, look up...

Sealed Wire & Cable Assemblies AREA FACTOR Douglas Electrical Components www.douglaselectrical.com

Sealed Wire & Cable Assemblies NPT Plug (Brass or Stainless Steel) NPT Nipple (Brass or Stainless Steel) NPT In-Line Adapter Female to Male (Brass or Stainless Steel) Pressure Face Seal "O" RING HEX THREAD Maximum Plate Thickness Thread Size Thread Size Douglas Electrical Components www.douglaselectrical.com