Made in the USA

Plumbing & LPG Distribution

Lyall was founded over 40 years ago to provide gas piping solutions to the natural gas utility market. Over the years, we have expanded to the plumbing and propane wholesale distribution markets providing these same high quality solutions to the backyard/private property arena.  

Through our valued nationwide distribution network, Lyall product is available in more areas than ever and is growing. Why? Ease of installation, competitive pricing and a history of safe, reliable products are the reasons that Lyall products are becoming the first choice among plumbing, pool & patio and general contractors throughout the United States. From Risers, Transitions and PE ball valves, to the very popular and easy-to-use LYCOFIT® mechanical fittings, our product offering is wide and deep. Contact us today to learn more about how you can supply your customers with the Lyall products they’re looking for.

Download the 2018-19 HGCA Wholesale Distribution Catalog

Lyall Authorized Sales Representatives

Lyall Distributor Network

Plumbing & LPG Distribution Product Offering

  • 1/2 CTS to 1-1/4 IPS gas piping components
  • Meter Risers - Anodeless, Transition (Anode), Field Assembled, Flex Service Head Adapter, Compression
  • Fittings - Mechanical, Transition, Compression
  • Valves - Excess Flow, Polyethylene Ball, Meter Set Bypass
  • Protective Coatings - Epoxy Fusion Bonded, Epoxy Paint, Polyester Powder, Polyester Over Zinc (Dual Coat), Aluminum Enriched Urethane, LYCOPro®

Lyall Business System

  • Purpose
    • Personal, professional and financial growth for all
  • Alignment of Aim
    • One shared goal
  • Body of Knowledge
    • Internal Yellow, Green and Black Belt instruction and certification
  • Toyota Production System
    • Continuous improvement through lean manufacturing practices
  • ISO-9001
    • Two registered facilities
  • Quality Management System
    • Product tracking and traceability through documented Material Test Reports (MTR)
  • Demand Generation
    • Targeted sales and marketing processes
  • Openness
    • Integrity, Trust and Collaboration


  • New hire safety orientation and training
  • Weekly toolbox safety meetings
  • Mandatory forklift, crane and material handling certification
  • Regularly scheduled safety audits, KIPs and offsite meetings
  • In-house safety teams


  • 167,000 square foot dedicated manufacturing footprint within two facilities
  • 6 overhead cranes with capacity up to 12.5 tons
  • 21’ x 15’ blasting booth
  • 50’ x 20’ paint booth
  • 2 in-house quality assurance and testing laboratories
  • Indoor flatbed loading
  • 5,000 gallon re-circulatory pump test fluid system


Manufacturing Support

  • 3D modeling and engineering drawings
  • Optimization of manufacturing process and costs through design review
  • Quality assurance testing documentation
    • Material Test Report (MTR)
    • Non-destructive weld test results (third party available)
      • Radiographic (RT)
      • Ultrasonic (UT)
      • Magnetic Particle (MT)
      • Dye Penetrant (PT)
      • Hydrostatic (Glycol/Water) 5,000 PSI max
      • Pressure (500 PSI max)
  • 3 certified welding inspectors on staff
  • 2 certified welding instructors on staff
  • Component sourcing support
  • Incoming material inspection
  • Supplier qualification and audits
  • First article inspection
  • In-process audits
  • Corrective Action Reports (CAR)


  • 3 certified welding inspectors on staff
  • 2 certified welding instructors on staff
  • 20+ certified welders on staff
  • Material processing capabilities
    • Carbon steel
    • Stainless steel
    • Aluminum
  • Lyall Qualified Weld Procedures per API-1104 standard
    • X-42 GMAW/GTAW weld process, all positions, unlimited OD and WT
    • X-60 GMAW/GTAW weld process, all positions, unlimited OD and WT
    • X-65 GMAW/GTAW weld process, all positions, unlimited OD and WT
    • X-70 GMAW/GTAW weld process, all positions, unlimited OD and WT
  • Lyall Qualified Weld Procedures per ASME Section IX
    • Stainless steel GMAW/GTAW weld process, 1G and 1F positions, 1”to unlimited OD, .56” max WT
  • American Welding Society AWS D1.1
    • Structural steel GMAW/GTAW & FCAW
  • Individual customer Qualified Weld Procedures as required

Facilities & Equipment


When it comes to backyard gas distribution, contractors know that their reputations are only as good as the products they use. That’s why they choose Lyall. For more than 40 years, the Lyall name has been an industry standard because Lyall always puts quality first.


Lyall manufacturing methods result in a lower-cost product without ever compromising quality. From pool and spa components to gas barbecue installations, Lyall has the cost-effective products that contractors want.


Lyall products, including risers, transition fittings and the patented LYCOFIT® mechanical fitting technology, are known in the natural gas contracting industry for their safety features and ease of installation.

View Plumbing & LPG Distribution Products

Get Started Today Call: (800) 535-9255