Commercial & Industrial Boiler Repair & Installation

The ASME "R" Stamp (Repair) authorizes repairs and alterations to existing pressure vessels. The "S" Stamp (Power Boiler Assembly) authorizes assembly of power boilers. For most commercial facilities, the R-Stamp is the relevant certification—it's required for tube replacements, patches, and any pressure-retaining component repairs. The S-Stamp is typically held by manufacturers or contractors performing new boiler installations.

Visual inspection of boiler tubes should occur during each annual or biennial state inspection. However, more detailed non-destructive testing (ultrasonic thickness testing) is recommended every 3-5 years for older boilers or those with a history of water treatment issues. For fire-tube boilers, look for pitting, erosion, and bulging. For water-tube boilers, check for thinning at bends and attachment points. Proper feedwater treatment significantly extends tube life.

Common causes of flame failure include dirty flame scanners (UV or infrared sensors), incorrect fuel-air ratio, low gas pressure, malfunctioning ignition components, or combustion air deficiencies. In Oklahoma, where wind can affect makeup air systems, combustion air problems are especially common. Our technicians perform systematic troubleshooting—checking gas train components, verifying ignition sequence timing, and ensuring proper combustion air volume.

Yes. Most boiler insurance policies require that pressure-retaining repairs be performed by an R-Stamp holder and documented with an R-1 form. If an incident occurs and the insurer discovers that repairs were performed by an uncertified contractor, they may deny the claim. Additionally, Oklahoma law requires R-Stamp certification for boiler repairs—violations can result in fines and shutdown orders. Always verify that your contractor holds current R-Stamp certification before authorizing any repair work.