Pressure

CeramTec's pressure feedthroughs are terminated in NPT (National Pipe Thread) fittings or other threaded fittings to allow for easy bulkhead installation. The NPT pressure units are designed to be sealed using Teflon tape or other acceptable sealants. All other designs use an o-ring seal.

These Ceramaseal® components are usually used in pressure vessels or industrial environments. High vacuum applications are also common but note that the use of threaded connections in a vacuum system should be minimized. The small spaces between the threads can cause virtual leaks.

CeramTec has been designing and manufacturing high pressure, high-reliability, ceramic-to-metal assemblies for more than 55 years.

The pressure feedthroughs in this section show capability in design for pressures up to 25,000 psig. In every design, the ceramic used is high-grade alumina or glass-ceramic, the NPT mounting members are 304 or 316 stainless steel and the ceramic-metal braze materials are silver, silver-copper or copper.

Photo	Voltage DC	Current (Amps per pin)	Pressure @ 20°C	Number of Conductors	Conductor Material	Sub-section
	to 25 kV	to 185 Amps	4000 (275)	1, 4, 6 & 10	Feedthrough: Copper Multipin: Alumel Coaxial: 304 Stn. Stl. or Nickel	NPT
	500 kV	4 Amps	to 25,000 (1724)	1 to 3	Alumel	CeramTite™
	1.5 kV	15 Amps	to 25,000 (1724)	1	52 Nickel iron	Tec-Seal™