When we call a steel tee “equal tee”,means the branch diameter of this tee is same with the main pipe (Run pipe) diameter of this tee.When we see only one size of tee in its description,it means this tee is the equal tee.For example, 4″ Tee mean the tee main pipe and branch pipe both are 4 inches.Sometimes it is also described 4″X4″ which is the same meaning of 4″ tee.
Standard: ASME/ANSI B16.9,MSS-SP-75,DIN 2615,EN 10253-2,JIS B2311,GOST 17378
Material: ASTM A234,ASTM 403,DIN 17175,EN10228 …Carbon steel,stainless steel,alloy steel.
Size: 1/2″-96″. DN15-DN2400
Connect method: Butt welding.
Type: Seamless: DN15-DN600,