Tees and Crosses

Cross: 
Pressure containing fitting with a minimum of four openings. 
Tee:
Pressure containing fitting with three openings. Two openings opposite one another form the run portion of the tee, and one opening is at 90 to the line of the run. Tees may be equipped with threads, flanges, studs or other end connectors.
Flanged crosses and tees can be made for 13.8 MPa, 20.7 MPa, 34.5 MPa, 69MPa, 103MPA and 138 MPa rated working pressure. Studded crosses and tees can be made for 13.8 MPa, 20.7 MPa, 34.5 MPa, 69.0 MPa, 103.5 MPA and 138 MPa rated working pressure.
The marking of the product is with ISO 10423 followed by Temperature class, Material class, Product specification level, Product requirement level, Nominal size, Thread size, End and outlet size connection, Rated working pressure, Ring gasket type and number, Date of Manufacture, Manufacturers name ( Reliable Valves), Serial No & Hardness test value.
When specific nominal sizes and combinations of nominal sizes do not appear in API Spec 6 A, Reliable Valves shall manufacture Studded/ Flanged Crosses and Tees according to the design criteria provided in API Spec 6A.