An NPT‑F pipe cap is a precision‑engineered fitting designed to seal the end of a female NPT‑threaded pipe or port. It features female National Pipe Taper (NPT) threads, providing a secure, leak‑resistant closure when installed with the appropriate thread sealant or PTFE tape. Pipe caps are commonly used to terminate, block, or temporarily close off piping systems for maintenance or future expansion.
NPT‑F pipe caps are widely used in hydraulic, pneumatic, instrumentation, and fluid systems across industries such as oil and gas, chemical processing, power generation, and industrial manufacturing. They ensure safe and reliable sealing of unused or capped lines, maintaining system integrity under pressure and varying operational conditions.

