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CeramTec’s pressure feedthroughs are terminated in NPT (National Pipe Thread) fittings or other threaded fittings to allow for easy bulkhead installation. The NPT (National Pipe Thread) pressure units are designed to be sealed using PTFE 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.
National Pipe Thread (NPT) Pressure Feedthroughs
National Pipe Thread (NPT) Pressure Feedthroughs - 2
Unit of Measure
1 

Item #

Item Name

Direct Current (DC) Voltage Rating

Temperature Range

Pressure at 20 Degree Celsius (ºC) Temperature

Installation Size

List Price

2846-01-A N/A 27 Ampere (A) Conductor Current Rating National Pipe Thread (NPT) Pressure Feedthrough N/A 5 kV N/A -269 to 450 ºC N/A 4000 psig275 bar N/A 1/8 in $102.70
21322-01-A N/A 3.6 Ampere (A) Conductor Current Rating National Pipe Thread (NPT) Pressure Feedthrough N/A 20 kV N/A -269 to 450 ºC N/A 4000 psig275 bar N/A 1/8 in $126.53
21324-01-A N/A 55 Ampere (A) Conductor Current Rating National Pipe Thread (NPT) Pressure Feedthrough N/A 20 kV N/A -269 to 450 ºC N/A 4000 psig275 bar N/A 1/8 in $102.70
21152-01-A N/A 100 Ampere (A) Conductor Current Rating National Pipe Thread (NPT) Pressure Feedthrough N/A 10 kV N/A -269 to 450 ºC N/A 1000 psig69 bar N/A 3/8 in $138.68
21143-01-A N/A 185 Ampere (A) Conductor Current Rating National Pipe Thread (NPT) Pressure Feedthrough N/A 25 kV N/A -269 to 450 ºC N/A 1000 psig69 bar N/A 3/8 in $138.95
Unit of Measure
1