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Process Control

Instrumentation and process control systems - design and documentation.

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Control Valves

Control Valve terminology, bodies, trim, flow characteristics, Cv and Kv sizing, noise, actuators and positioners

Documentation

Documentation of process control systems - Block Flow Diagrams (BFD), Process Flow Diagrams (PFD), Piping and Instrumentation Diagrams (P&ID) and more

Measurements and Instrumentation

Measurement and instrumentation strategies.

Risk, Reliability and Safety

Risk, reliability and safety in process control systems.

Air - Humidity Measurement from Dry and Wet Bulb Temperature

Relative humidity in moist air can estimated by measuring the dry and wet bulb temperature.

BFD - Block Flow Diagram

A Block Flow Diagram is a schematic illustration of a major process.

Butterfly Valves - Sizing and Selection

Selecting and sizing butterfly valves for water applications.

CE Marking

Verifies that a product is designed to the appropriate standards according the European Machine Directive.

Chemicals Hazard Rating System

The National Fire Protection Association (NFPA) hazard system for chemical materials.

Control Valves - Sizing and Selection

Sizing control valves to match process requirements.

Electric Circuit Diagram - Drawing Template

Online shareable electric circuit diagram.

Flow Coefficient Cv vs. Flow Factor Kv

Comparing flow coefficients Cv to flow factors Kv.

Flowmeters - Turndown Ratios

Turndown ratio (Rangeability) can be used to compare flow measurement devices like orifices, venturi meters etc.

Fluid Flowmeters - Comparing Types

An introduction to the different types of fluid flowmeters - Orifices, Venturies, Nozzles, Rotameters, Pitot Tubes, Calorimetrics, Turbine, Vortex, Electromagnetic, Doppler, Ultrasonic, Thermal, Coriolis.

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Gases - Control Valve Calculator

An online control valve - Cv - calculator for gases.

Hazardous Areas - European Classification Standard

European hazardous area classification with zones, protection types, temperature codes and codes.

Hazardous Areas - North America Classification

North American hazardous locations classification with classes, divisions and groups

HVAC Diagram - Online Drawing Tool

Draw HVAC diagrams online with this Google Drive drawing tool.

IP - Ingress Protection Ratings

IP - Ingress Protection rating is used to specify the environmental protection - or electrical enclosure - of electrical equipment.

ISA Instrumentation Codes used in Process Control Systems

The ISA standards and symbols are important for the P&IDs and documents describing the process control system.

Liquid, Steam and Gas - Flow Coefficients Cv

Calculate flow coefficients for the design of control valves - Imperial units.

P&ID - Piping and Instrumentation Diagram

Schematic illustration of a functional relationship between piping, instrumentation and system components.

P&ID Diagram - Online Drawing Tool

Draw P&ID diagrams online in the browser with Google Docs.

PFD - Process Flow Diagram

The Process Flow Diagram (PFD) is a schematic illustration of a system.

PFD - Process Flow Diagram - Online Drawing Tool

Draw Process Flow Diagrams with this online Google Docs drawing application.

Pressure

Introduction to pressure - online pressure units converter.

Process Control - Common Terms

Common terms used in the process control terminology.

Process Controllers - P, PI & PID

Proportional, integrating and derivative process controllers.

Process Instrumentation - ISA Codes

ISA process instrumentation codes - and combinations.

Signal Transmission - Standards

Standard signals used for transmission from sensor to controller.

Steam Control Valves - Calculate Flow Factor Kv

Designing steam control valves and their Kv values.

Temperature Sensors - Comparing Types

Comparing advantages and disadvantages of thermocouples, RTDs and thermistors temperature sensors.

Thermocouples

Thermocouples - types, principles and temperature ranges.

Water Control Valves - Kv Calculation

Designing water process control valves and their Kv values.

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