Weld and braze adapters join tubing or pipe to the adapter by butting the material to the fitting or by inserting the tubing or pipe into a socket in the fitting. Only Type 316L Stainless Steel should be specified for weld & braze adapters. This low carbon stainless steel (denoted by the suffix “L”) minimizes post-welding corrosion called intergranular corrosion.

Suggested Applications for Weld & Braze Adapters

Weld and braze adapters are designed for joining tubing or pipe to other components carrying pressurized fluid or gas. They are not designed for mechanically joining components. The weld connection should not be subject to these weight loading stresses. Because of the permanent nature of the seal, weld and braze adapters are frequently used in hydraulic systems with extremely high operating pressures and/or vibration.

Feature Weld & Braze Pipe Fittings & Adapters
FeaturePressure Weld & Braze Pipe Fittings & AdaptersVery high to 12,000psi
FeatureTemperature Weld & Braze Pipe Fittings & AdaptersStainless: -425° to 1200°F
Monel®: -65° to 800°F
FeatureVibration Resistance Weld & Braze Pipe Fittings & AdaptersExcellent
FeatureMaterials Available Weld & Braze Pipe Fittings & Adapters316L stainless
M405 Monel®
FeatureSize Available (tubing OD) Weld & Braze Pipe Fittings & Adapters1/8" – 2"
FeatureSeal Reliability Weld & Braze Pipe Fittings & AdaptersExcellent. Permanently brazed or welded joints are leak-free & highly resisitant to vibration
FeatureAssembly Weld & Braze Pipe Fittings & Adapters
FeatureThread & Port Preparation Weld & Braze Pipe Fittings & AdaptersFluxing & other prep. Steps required for weld
FeatureEase of Assembly Weld & Braze Pipe Fittings & AdaptersDifficult. Certified welding or brazing skills required.
FeatureEase of Maintenance Weld & Braze Pipe Fittings & AdaptersN/A. Permanently assembled joint cannot be maintained.
FeatureSpecification Conformance
(design & thread)
Weld & Braze Pipe Fittings & Adapters ANSI B31.1, B31.7