How to Specify BrazeTyte® Tube Fittings

BrazeTyteBrazeTyte® stainless steel tube fittings are designed for use with various sizes of tubing and are intended to be brazed, soldered, or welded directly to the tubing.

BrazeTyte® fitting part numbers use symbols that identify the size and style of the fitting.

The dash numbers indicate tube OD size by 1/16 inches, thus -4 means 4/16″ or 1/4″, -10 means 10/16″ or 5/8″, etc. The first series of numbers identifies the style or configuration of the fitting. The letters designate combinations of male, female and swivel ends of the part (see below).

All Female
All Male
Male and Female
Swivel and Female
Swivel and Male
male run
tube OD

Methods for Installing BrazeTyte® Fittings

The most effective means for making a stainless connection is either by soldering, brazing or welding. Such joints are strong, leak-tight, corrosion resistant, economical and have a good appearance. BrazeTyte® tube fittings are designed to provide for these assembly methods.

Soldering and Brazing

Soldered or brazed joints resist most corrosive media. The very nature of the process leaves only a small seam exposed to the atmosphere. It is important to choose the proper solder or brazing alloy, which is usually determined by the application and environment of the assembly being fabricated. Certain alloys are formulated with precious metals, imparting corrosion resistance equal to that of the stainless steel.

Soldered or brazed stainless steel connections are extremely strong in both tensile and shear strength. This high strength characteristic is based on the ability of molten brazing alloy to penetrate and fill the gap between bonding areas through “capillary action.”


The other means of making a permanent joint with BrazeTyte® fittings is by welding. Depending upon the configuration chosen, connections may be made by either of two basic methods, Butt or Lap welding. The technique chosen will be governed by the actual tubing application, the welding equipment available and the skill of the welding operator.

Bonding with Epoxy

BrazeTyte® fittings can also be assembled easily, inexpensively and permanently using epoxy adhesives. A joint can be made quickly by unskilled labor using simple techniques.

There are many types of commercial and industrial epoxy adhesives on the market. These usually are offered as two component kits, one part being the catalyst, which activates the curing of the material. Curing methods of these epoxy adhesives vary. Some cure at room temperatures and in other cases curing is accelerated by the application of heat.

Properly prepared and fully cured bonds are possible that will yield tensile shear strengths of up to 3,500 PSI when tested at room temperature.

Epoxy adhesive is not recommended for systems where temperatures exceed 200° or for use with certain chemicals that might attack the epoxy joint. Please refer to the corrosion resistance table published by the epoxy manufacturer for suitability of the material relative to your application.

Also see Specialty Saw for cutting of small diameter tubing.