Technical Resources

CPV Manufacturing provides fittings technical documents, tables, and resources to help assist our customers with field maintenance and in support of design and piping installations. If you have questions or comments, please contact us and we will be happy to assist you with your needs.

Fittings Data & Brazing Methods

Important Installation Requirements for CPV Tube Fittings

The O-ring is the sealing component in CPV tube fittings. To seal, this O-ring must be completely surrounded by metal. Therefore, the FLAT FACES on the body and tailpiece MUST BE IN COMPLETE CONTACT upon installation.If there is any space between the fitting faces-due to misalignment or insufficient tightening-the O-ring may blow out or extrude […]

Mark VIII® Fittings

Mark VIII® fittings from CPV. Always a perfect match with your system. The design of Mark VIII® fittings assures leakproof connections in gases or liquids up to 6000 psi. The union connections in this system are flat faced with a resilient O-ring incorporated into a close tolerance groove on one side of the body. Low […]

O-Ring Straight Thread Boss SAE J1926/1

Used in Cat. 64T and Cat. H864T female straight thread boss fittings

Product Torque Values

Union Nut Torque Values for Mark VIII® Cat. H850N

The following torque values should be used for tightening CPV Mark VIII® Union Nuts when making up a joint. The values apply to joints installed into a piping system. They do not apply for stock assembly or, for shipping assembly. In the latter case hand tight is acceptable. The minimum values establish the lower limit […]

Union Nut Torque Values for O-SEAL® Cat. 50N

The following torque values should be used for tightening CPV O-SEAL® Union Nuts when making up a joint. The values apply to joints installed into a piping system. They do not apply for stock assembly or, for shipping assembly. In the latter case hand tight is acceptable. The minimum values establish the lower limit for […]

Straight Thread Torque Values for Various CPV Fittings

The following torque values should be used for tightening straight thread O-Ring sealed threaded connections. The torque values shown apply to steel and/or stainless steel components. It is recommended not to exceed ten percent (10%) of the values shown.