This is used for Nozzle Orientation Marking Calculator for Shell and Dish ends Nozzles.

Nozzle Orientation marker is developed for easy, fast and simple use of this calculator while Nozzle marking on Pressure vessel, tank or any other shell.

For Shell Nozzle Orienatation Marking required input of outside circumference or shell outside diameter and Nozzle Angle in Degree.


this app calculate arc length required for marking nozzle on shell at a given angle.

this app is also calculate circumference required for 1 degree.

In this App Dish end Nozzle orientation Marking Calculated
for Different Types of heads used in pressure vessels.

This app is Calculate Nozzle marking Distance for following Types of Dish ends or Heads

Torispherical heads
2:1 Semi Ellipsoidal Heads
Hemispherical Heads.

In Dish Nozzle Marker Input is required is Nozzle Distance from center and Dish Ends Outside Diameter and Crown radius of dish ends.


This app is useful in Daily activity of Fabrication Fitter, fabrication Engineer, QC engineer and other peoples working in the field of Process equipment Manufacturing.

Keywords: Nozzles, Vessels, Heads, Dish Ends, Torispherical, Elliptical, 2:1 Semi-ellipsoidal, hemispherical, Fabrication, Engineering, Pressure Vessels, welding, ASME.