Rigs, Platforms & Shipbuilding


Hy-Lok UK is the leading supplier of offshore and marine fittings for customers in the drill rig, production platform, and shipbuilding industries.

Our reputation for quality and extensive selection of fittings, including those rated up to 10,000 psig, makes us a powerful ally for customers who need reliable products to fit any fitting or fluid control application.

We are capable of providing a wide range of products ideal for the shipbuilding, ship repair, oil rigs, gas, and petrochemical markets.

Our full line of tube fittings, needle valves, ball valves, instrument manifolds, inline filters, hoses, double block valves, bleed valves, chemical injection valves, and root valves come in standard materials such as stainless steel, carbon steel, and brass, as well as special alloys including Inconel, Hastelloy, Monel, and titanium.

Hy-Lok's forged fittings are available in a number of varieties to fulfil a wide range of specifications. These include fittings with 45° and 90° elbows, male and female elbows, and tee and cross pieces. We also offer full and half couplings, reducing inserts, and caps and plugs or square out of square, hex and round head varieties.

We also offer butt weld fittings in carbon, low-temperature alloys, or exotic alloys, stainless steel, or other materials.

Our products are corrosion resistant and ideal for use in extreme environments, designed to help prevent maintenance costs and promote safety and efficiency across facilities.

We carry many quality certifications including ISO 9001, DNV, Lloyd's Register, and ABS. We test to ASTM-F-1387, the standard for mechanically fitted pipe and tubing, as well as API 607/6FA and BS 6755 fire safety standards. We carry stock on a number of standard items to ensure customers receive their product quickly and offer the best prices in the industry.

For more information about our offshore and marine fittings, see the table below.



  • Rigs
  • Platforms
  • Shipbuilding
  • Offshore


  • Drill Rig
  • Production Platform
  • Floating Production Storage and Offloading (FPSO)
  • Oil Producing Projects
  • Analytical Instrumentation


  • Tube Fittings
  • Needle Valves
  • Ball Valves
  • Instrument Manifolds
  • Inline Filters
  • Hoses
  • Double Block and Bleed Valves
  • Chemical Injection Valves
  • Root Valves


  • Hy-Lok


  • Stainless Steel (316, 304)
  • Brass
  • Carbon Steel

Special Alloys

  • Inconel (600, 625, 825)
  • Hastelloy (C)
  • Monel
  • Titanium


  • Up to 10,000 psig


  • DNV
  • Lloyd's register
  • ABS
  • ASTM-F-1387
  • API Q1-6D
  • Firesafe API 607

Industry Focus

  • Compressed Natural Gas
  • Liquefied Natural Gas
  • Oil & Gas Refining, Production, & Exploration
  • Power Generation
  • Chemical Processing
  • Semiconductor Manufacturing
  • Pulp & Paper
  • Analytical Instrumentation
  • Research Labs
  • Life Support
  • Pharmaceutical & Biotechnology
  • Aerospace & Defense
  • Cryogenics
  • Rigs, Platforms & Shipbuilding

Industry Standards

  • ISO 9001
  • ASME QSC-584
  • API Q1-6D
  • PVD 97/23/EC
  • ISO 14001
  • OHSAS 18001
  • Firesafe API 607, 6FA, BS6755

Additional Resources

Fluid Compatibility Guide

Product Catalogues

Certification Library