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InstruCalc Instrument Sizing Suite or Chempute Instrument Engineering Calculations InstruCalc is a software for calculating the size of the flow control valve of elements and relieving the device. Used the database to generate reports.
Control Valve sizing: has gas, liquid flow and two phases. Predicting noise and cavitation. Diagram for valve control. Cv valve and flow. Pressure drop and valve flow. linear trim using ANSI / ISA 75.01.01.
Relief Valve sizing: Valve, tank valve disc rupture.
Flow Element sizing: Observes the flow of the separation meter, hole limitation, rotameter target vortex and elbow meter. Ability to calculate the pore size and saliva flow of two groups or differential range. Recommended hole size and correction. Element flow diagrams include: current and differential.
Pressure drop in liquid and gas pipes: Calculations using the Darcy formula of the Colebrook equation and the technical paper crane.
Waterhammer calculations: Waterhammer closing time, high pressure and support force. Using the Joukowski formula.
1. Engineering Standard Upgrades
A. Control Valve revisions:
Updated to ANSII/ISA 75.011.01-2012
Calculation accuracy changed for critical flows
Viscosity correction factor changed
Pressure drop calculation revised to agree with Crane Technical paper No 410.
Option of Cv Units (English) or Kv units (Metric) added.
Option of either, aerodynamic noise calculation by ISA 75.17 method or InstruCalc method
Calculation accuracy added (input data within acceptable limits)
B. Relief Devices
Pressure Relief Devices Program follows API 520 Pt 1, 9th edition dated 7/14
2. Operational Improvements
Added the ability to have more than one calculation open at a time. Each instance of the program is framed in a different color. The user can have multiple “what if” scenarios displayed for making engineering decisions.
Click here to see more information about this program.
Windows 7 / 8.1 / 10
Listed in the Readme.txt file.
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