Chemical Injection System

Chemical injection system consists of:

Tee Access Fitting Assembly
Tee access fitting assembly consists of access fitting body, solid plug assembly, and protective cover without hole. Chemical is injected into pipeline or vessel through the Tee on access fitting body.

Injection/Sampling Nut
Injection/sampling nut directs injected chemical to injection tube. Injection/sampling nut is connected to the solid plug assembly with NPT thread.

Injection Tube
Chemical is sprayed on various locations on pipeline's or vessel's wall depending on the injection location. Various injection tubes are available for various pipeline systems. For example, nozzle end injection tube is usually used for gas pipelines and quill end injection tube is usually used for liquid pipelines. Injection tube is connected to the injection/sampling nut with NPT thread.

Nipple
Nipple is the pathway of injected chemical to the Tee on access fitting body. Nipple is connected to the access fitting body with either NPT thread or welding (only for nipple flange).

Shut-offValve
Shut-off valve controls the flow rate of chemicaf into pipeline or vessel. Shut-off valve is connected to the nipple with NPT thread.