DK-Lok in Southern California

Instrumentation Fittings and Valves, Stocked in San Pedro

Your local source for DK-Lok

A-Best Industrial is an authorized DK-Lok distributor. We specialize in DK-Lok instrumentation fittings and valves and keep them on the shelf in San Pedro, near the Port of Los Angeles. Utilities, refineries, contractors and OEMs across Southern California count on us for fast answers, fast delivery and people who know the product. Not sure which fitting or valve fits your application? Call us and we'll walk through it with you.

DK-Lok Product Lines

  • Compression Tube Fittings

    Two-ferrule tube fittings in fractional and metric sizes. Single ferrule design available as well.

  • Instrument Pipe & Weld Fittings

    Pipe and weld fittings for instrument lines.

  • Needle Valves

    Fine flow control and shutoff for instrument lines and gauges.

  • Ball & Plug Valves

    Quick quarter-turn shutoff for gas and liquid service.

  • Check Valves

    Keep flow moving in one direction.

  • Relief Valves

    Protect your system from overpressure.

  • Bellows Valves

    Packless sealing for demanding service.

  • Metering Valves

    Precise, repeatable low-flow control.

  • Manifolds

    Instrument manifolds for transmitters and gauges.

  • Quick Connects

    Fast connect and disconnect without tools.

  • DK-Lok Clean Fittings

    For high-purity lines.

  • Ultra-Torr Vacuum Fittings

    For vacuum service.

Why Buy DK-Lok from A-Best

  • Local Stock

    DK-Lok fittings and valves on the shelf in San Pedro, with counter pickup or nationwide shipping.

  • Free Training

    Free tube fitting and tube bending training for your crew.

  • Certified Supplier

    MBE, DBE, NMSDC, SCMSDC and CPUC certified. See our certifications.

Need a Quote on DK-Lok?

Call 310-833-3353, email sales@abesttube.com, or stop by 1911 N. Gaffey Street, Suite D, San Pedro, CA 90731. Open Monday–Friday, 8:00 AM–5:00 PM Pacific, with after-hours emergency service.