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Part Number / OE No.: 9NHydraulic Adapters

9N NPT Female Cap

Advanced 9N NPT female pipe sealing cap. Features precision-machined internal tapered National Pipe Taper (NPT) threads and a solid heavy-duty hex body. Threads directly onto external NPT male pipe ends or fittings to provide dependable thread-wedging shutoff, contaminant exclusion, and burst-proof reliability in ANSI/ASME B1.20.1 high-pressure industrial hydraulic and process piping systems.

Tags

Carbon SteelNPTStainless SteelUN/UNF

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Product Overview

Advanced 9N Series NPT Female Hydraulic Pipe Sealing Cap

The 9N Series is a rugged line-terminating component specifically engineered for dead-ending and protecting external male pipe threads within ANSI/ASME B1.20.1 standard industrial hydraulic and process piping architectures. Featuring internal precision-tapered NPT female threads enclosed in a solid heavy-duty hexagonal end cap body, this component threads directly onto male NPT pipe ends, manifold nipples, or test lines to deliver positive dry shutoff, complete contaminant exclusion, and zero-leak reliability under severe dynamic pressures.

Core Hydraulic Advantages

  • Tapered NPT Thread-Wedging Seal: Precision CNC-machined 60-degree internal tapered pipe threads wedge flank-to-flank over mating male NPT fittings, creating a dependable mechanical seal (or enhanced seal with anaerobic sealant) resistant to severe pressure surges and fluid weepage.
  • Solid Hexagonal End Profile: Full-hex exterior design provides maximum wrench contact area for effortless high-torque tightening, rigid lock-down, and fast field removal even in compact machinery enclosures.
  • Total Line & Environmental Protection: Safely dead-ends unused pipe runs, sampling points, and auxiliary manifold ports against pressure discharge while blocking ambient dirt, moisture, and debris during servicing, transit, or seasonal shutdown.
  • Exceptional Blowout Resistance: Precision CNC-machined from your choice of premium high-strength carbon steel or corrosion-resistant 304/316 stainless steel, delivering maximum tensile strength, dimensional stability, and burst-proof performance under extreme line pressures.

With optional zinc-nickel alloy surface treatment available to significantly extend service life, this hydraulic NPT female pipe cap ensures maximum longevity, structural safety, and leak-proof performance for heavy-duty industrial fluid power networks.

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9N NPT Female Cap · 9N

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