Pipe Thread Specifications

Tylok Pipe Fittings are manufactured from materials meeting applicable ASTM or ASME specifications, with pipe threads which meet or exceed ANSI B1.20.1 requirements. Strict quality control procedures are followed
throughout production. All parts are individually inspected to provide the finest possible product.

Materials: Brass | 316 Stainless Steel

These charts are to be used as a guide only and are based on normal wall thicknesses, used for the various sizes. These ratings may vary widely from effects such as the proper use of sealants, size of stock, temperature, corrosion factors, etc. Therefore, Tylok International, Inc., assumes no responsibility for its accuracy in any individual design.

Temperature Ratings

Tylok Instrumentation Fittings are rated at the following temperatures:

316 Stainless -325°F to 1200°F (-198°C to 648°C)

Brass -40°F to 400°F (-40°C to 204°C)

Note: Consideration should be given to maximum temperature ratings if fittings and/or tubing are coated or plated.

Tube Pressure Derating Factors at Elevated Temperatures

The following table lists derating factors that must be considered in applications above that of ambient temperatures.

These charts are to be used as a guide only and are based on normal wall thicknesses, used for the various sizes. These ratings may vary widely from effects such as the proper use of sealants, size of stock, temperature, corrosion factors, etc. Therefore, Tylok International, Inc., assumes no responsibility for its accuracy in any individual design.

Example Type 316 Stainless Steel 1/4” O.D. x .049” wall at 800°F is… 7,500 PSI x .80 = 6,000 PSI Therefore, the suggested allowable working pressure for 316 Stainless Steel - 1/4” O.D. with .049” tube wall - at 800°F is 6,000 PSI.