# Nozzle Calculator Pro — Nozzle Orientation & Marking

> Nozzle Orientation & Marking (iPhone/iPad app by Imran Pinjara.)

- Source: https://appshunter.io/ios/app/nozzle-calculator-pro/id1487358239 (this page in markdown: same URL + `.md`)
- Developer: [Imran Pinjara](https://appshunter.io/developer/1484488781)
- Category: Productivity, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 16.1 · 1 MB
- Languages: American English
- Released: 2019-11-10
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/nozzle-calculator-pro/id1487358239/reviews.md

## What is Nozzle Calculator Pro?

Nozzle Calculator is a professional engineering and fabrication tool for calculating nozzle orientation and marking dimensions for pressure vessels, cylindrical shells, storage tanks, and dish ends.

The app helps mechanical engineers, pressure vessel designers, fabrication engineers, QA/QC professionals, inspectors, and workshop technicians calculate accurate dimensions required for nozzle positioning, orientation, layout marking, and fabrication inspection.

It eliminates repetitive manual calculations and provides quick, clear, and workshop-ready results.

Included Calculators

• Shell Nozzle Orientation Calculator
• Dish Nozzle Orientation Calculator

Shell Nozzle Orientation

Calculate nozzle marking dimensions on cylindrical pressure vessel shells and tanks.

The calculator determines:

• Shell Outside Diameter (OD) from OCF
• OCF per Degree
• OCF for a Selected Nozzle Angle
• Nozzle Orientation Marking Dimensions

These calculations are useful when transferring nozzle orientation information onto cylindrical shells during fabrication and inspection.

Dish Nozzle Orientation

Calculate nozzle arc distance and orientation dimensions on pressure vessel dish ends.

The calculator supports common pressure vessel head geometries:

• 10% Torispherical Head
• 2:1 Ellipsoidal Head
• Hemispherical Head

Enter the required dish geometry and nozzle orientation information to obtain the calculated arc distance and related marking dimensions.

Features

• Shell nozzle orientation calculation
• Dish nozzle orientation calculation
• OCF calculation
• OCF per degree
• Nozzle angle calculation reference
• Dish end arc distance calculation
• Pressure vessel nozzle marking
• Cylindrical shell layout calculations
• Supports common dish end geometries
• Metric and Imperial unit systems
• Automatic internal unit conversion
• Fractional Imperial input support
• Clear and meaningful output values
• Simple professional interface
• Fast engineering calculations
• No internet connection required

Applications

Nozzle Calculator is useful for:

• Pressure Vessel Fabrication
• Storage Tank Fabrication
• Process Equipment Manufacturing
• Cylindrical Shell Layout
• Dish End Fabrication
• Nozzle Installation
• Vessel Inspection
• Fabrication Layout
• Industrial Equipment Manufacturing
• Plant Maintenance

Designed For

• Mechanical Engineers
• Pressure Vessel Engineers
• Design Engineers
• Fabrication Engineers
• Production Engineers
• QA/QC Engineers
• Inspection Engineers
• Fabrication Supervisors
• Workshop Professionals
• Vessel Fabricators
• Engineering Students

Nozzle Calculator helps reduce manual calculation work, minimize layout errors, save fabrication time, and improve accuracy when marking nozzle positions and orientations on pressure vessel shells and heads.

Whether you are working on a cylindrical shell, storage tank, torispherical head, 2:1 ellipsoidal head, or hemispherical head, Nozzle Calculator provides a convenient engineering tool for nozzle orientation and fabrication marking calculations.


## Version history (last 3 releases)

### 3.0 — 2026-08-19

Upgraded to Higher SDK level Support.
Changes in UI/UX.
Added fractional input support.
Improved Input Fields labels and placeholders.
Removed decimal fraction Chart Requirement.
Added Display Units for Result data.
fix minor bugs/issues.

### 2.0 — 2023-05-30

Unit Setting Option for mm/inches added.
decimal fraction chart added.
keyboard dismiss issue resolved.
App Upadet for Higher SDK Level for latest version support.
App Theme Changed.
App UI Design Changed.
App Navigation Changed.
fix app stability and performance issue.
improve user experience.
fix minor bugs.

### 1.0 — 2019-11-10

No release notes.

## More apps by Imran Pinjara

- [Screw Flight Pro](https://appshunter.io/ios/app/screw-flight-pro/id1484488782)
- [Miter Bend Pro](https://appshunter.io/ios/app/miter-bend-pro/id1484821889)
- [Flange Hole Marker Pro](https://appshunter.io/ios/app/flange-hole-marker-pro/id1486290745)
- [Pressure Vessel Heads Pro](https://appshunter.io/ios/app/pressure-vessel-heads-pro/id1486607999)
- [Petal Layout Pro](https://appshunter.io/ios/app/petal-layout-pro/id1486823832)
- [Pump Calculator](https://appshunter.io/ios/app/pump-calculator/id1487084383)

All apps by Imran Pinjara: https://appshunter.io/developer/1484488781

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*