NINGBO T. C. I ring type joint was initially developed for use in the petroleum industry, where high pressure/temperature applications necessitated the need for a high integrity seal. They are mainly used in the oil field on drilling and completion equipment. Ring type joints are also commonly used on valves and pipework assemblies, along with some high integrity pressure vessel joints.

NINGBO T. C. I Ring joint gasket (RTJ gasket) are manufactured in accordance with JPI-7S23, ANSI B16.20 and API 6A used on the ring type joint flanges specified in JPI-7S-15, ANSI B16.5, API spec 6A and MSS sp-44. These Gaskets are manufactured in different solid metal types like soft iron/SS304/316/321 metal and other alloy items.
They are used to stand high pressure and temperatures and they are employed where corrosive agents are present. These gaskets are designed in oval/octagonal shapes confirming to R, Bx and Rx series of API std 6A.

Main use: High temperature, high pressure pipeline(steam and petrol industry, petrolchemical industry)tower, trough, heat converter, pipe joints. Applied standard:

Wrapping liner Octagonalliner ANSLI B16.5-1793, JPI-75-15-70 GB 699, GB1220, JB755