Quality Assurance

At Douglas Barwick Inc., we value product quality and customer satisfaction.

Other companies talk about quality and customer satisfaction, we have 125 years of experience to back up our claim.

Our technicians design quality assurance procedures and see that they are rigorously applied. They also make sure that all inspections of material and workmanship are carried out in accordance with the required quality assurance programs.

Douglas Barwick Inc. manufactures stainless steel pipe & fittings to the specifications and codes listed below:

A269 Standard specifications for seamless and welded austenitic stainless steel tubing for general service.
A312 Standard specifications for seamless and welded austenitic stainless steel pipes.
A358 Standard specifications for electric-fusion-welded austenitic chromium-nickel alloy steel pipe for high-temperature service.
A403 Standard specifications for wrought austenitic stainless steel piping fittings.
A409 Standard specifications for welded large diameter austenitic steel pipe for corrosive or high temperature service.
A774 Standard specifications for as-welded wrought austenitic stainless steel fittings for general corrosive service at low and moderate temperatures.
A778 Standard specifications for welded, un-annealed austenitic stainless steel tubular products.
A790 Standard specifications for seamless and welded ferritic/austenitic stainless steel.
B36.19M-1985 American National Standard for Stainless Steel Pipe. ( ANSI/ASME B36.19M-1985)
ANSI B31.1 Power Piping.
ANSI B31.3 Chemical Plant and Petroleum Refining Piping.
TAPPI Recommended specifications for Stainless Steel Pipe & Fittings.
CSA W59 Welded Steel Construction.
AWWA Manual of water supply products. (American Water Works Associations)
ASME Section IX Qualification Standards for Welding Procedures, Welders and Welding Operators.
ISO 9001 Certified by Quality Management Institute – Model of Quality Assurance in Production.

ISOLogo9001
An ISO 9001 Registered Company
Cert. No. 001689