Defense Flow Solutions is a trusted provider of high-quality pipe fittings engineered for the demanding requirements of the marine, naval, and industrial sectors. We manufacture and supply a wide variety of standard and custom fittings to support shipbuilding, system retrofits, and facility maintenance across both commercial and defense programs.

Our product line includes:

  • Sil-Braze Fittings
    Designed for strong, leak-proof connections in copper-nickel piping systems. These fittings are commonly used in seawater, HVAC, and fluid transfer systems aboard naval and commercial vessels.

  • 400 LB Socket Weld & Threaded Fittings
    Precision-machined from copper-nickel alloys, these high-strength fittings are ideal for high-pressure systems such as cooling water, firemain, bilge, and lube oil piping. Socket weld and threaded options are available to meet system design requirements.

  • Custom & Specialty Machined Fittings
    Our in-house machine shop enables us to fabricate complex or non-standard fittings tailored to unique applications. Whether you require reducing tees, laterals, saddles, or flanged branches, we can manufacture them to your exact dimensions and alloy specifications.

Materials & Capabilities

We specialize in fittings machined from high-performance materials, including:

  • Copper-Nickel (90/10 and 70/30)

  • Stainless Steel (304, 316, 321, etc.)

  • Bronze and Brass Alloys

  • High-Strength Nickel and Specialty Alloys

All fittings are manufactured to strict tolerances, meeting relevant ASME, ASTM, MIL-SPEC, and NAVSEA standards. Our production process includes full machining, deburring, marking, and optional coating or passivation services to meet service environment requirements.

Fast Turnaround & Dependable Quality

At Defense Flow Solutions, we understand the importance of both speed and precision. That’s why we focus on:

  • Quick Turnaround Times – Ideal for urgent shipyard needs or maintenance schedules

  • Strict Quality Control – With Tier 1 QA oversight and full material documentation

  • Flexible Production – Supporting both high-volume runs and low-quantity custom orders

Every fitting we produce is backed by rigorous inspection protocols and quality assurance processes to ensure consistent performance in mission-critical systems.

Extensive On-Hand Inventory

Through our affiliated distribution network, including NVMFG, we maintain a large, ready-to-ship inventory of standard marine-grade fittings in a range of sizes and alloys. This allows us to fulfill most common piping system requirements without delay, supporting both new construction and repair contracts.

Our inventory includes:

  • Elbows (45°, 90°, long/short radius)

  • Tees (equal, reducing)

  • Couplings

  • Bushings

  • Caps and plugs

  • Flanged, threaded, and socket weld ends

Ready to Support Your Next Project

Whether you’re outfitting a new vessel, performing a system upgrade, or managing fleet maintenance, Defense Flow Solutions delivers reliable, code-compliant fittings tailored to your timeline and technical needs.

Take a moment to explore our product links above or contact our team directly—we’re ready to support your next requirement with speed, accuracy, and technical expertise.