Mass Flow Meters

Mass Flowmeter THERMAL MASS FLOWMETER CORIOLIS MASS FLOWMETER THERMAL MASS FLOWMETER Operates by monitoring the cooling effect of a gas stream as it passes over a heated transducer. Gas flow passes over two PT100 RTD transducers.  The temperature transducer monitors the actual gas process temperature, whilst the self-heated transducer is maintained at a constant differential temperature by varying the current ...

Read More »

Flow Meter Types Based on Measurement Techniques

Flow meter is an instrument used for the measurement of the amount of liquid, gas or vapor that passes through them. In some flow meter the flow is measured as the amount of fluid passing through the flow meter during a time period (such as 100 liters per minute) whereas other flow meters measure the totalized amount of fluid that ...

Read More »

Nozzle loads – Part 2

<< Nozzle loads part 1 1.1         Proprietary Equipment Various Mechanical equipments like Pumps, Compressors, Expanders, Plate-fin heat exchanger, Air cooled Heat Exchanger etc. are classified under this category. Allowable loads for the nozzles of these equipments are generally available from equipment supplier. However, some of the proprietary equipment are designed and constructed as per International codes with standard set of allowable ...

Read More »

Nozzle Loads – Part 1

Nozzle Loads 1.0  Introduction to Nozzle Loads As a minimum, the Piping Stress Engineer shall ensure that the loads on the Nozzle of the Mechanical Equipments are within these values. In the event the loads are exceeding the allowable loads values, prior approval from the supplier shall be taken. It is advisable that, the Fabrication / Procurement of these equipments shall ...

Read More »

Tank farm: Types, Design Considerations, Plot Plan Arrangement, Dyke Enclosure- Part 1

I. Introduction to tankfarm: The use of tanks is common in all kinds of plants found in oil & gas industry. Process Plant Refineries Petrochemicals Specialty chemicals Terminals Administration buildings Material Handling Plants Storage tank are containers used for storage of fluids for the short or long term. Cluster of tanks together in a same are termed as “Tank Farms”. II.        ...

Read More »

Plug Valve: An Isolation Valve

Table of contents: 1. Non-Lubricated Plug Valve 2. Lubricated Plug Valve 3. Eccentric Plug Valve 4. Expanding Plug Valve A plug valve is a quarter-turn on-off valve. The plug can be cylindrical or tapered and has a variety of port types. Plug valves are available in either a lubricated or non-lubricated design. Plug valve ends can be flanged, hub type ...

Read More »

Pressure / Vacuum Relief Valve- Part 2

Sizing Of Pressure / Vacuum Relief Valves (AS PER API 2000) A)           BASIS The following parameters need to be considered while sizing the pressure/vacuum relief valve : 1             Normal Relief :  The sum of the vapour displacement resulting from filling + thermal outbreathing from storage tank or emptying + thermal inbreathing of storage tank 2             Emergency Relief : Thermal outbreathing ...

Read More »

Pressure / Vacuum Relief Valve – Part 1

Table of contents: 1. Purpose of Pressure/Vacuum Relief Valves 2. How Pressure/Vacuum Relief Valves Function 3. Advantages of Pressure/Vacuum Relief Valve Purpose of Pressure/Vacuum Relief Valve In reality, properly sized opening on the tank roof protects the tank from rupture or imploading.  However, it constantly outbreath and inbreath and during outbreathing cycle it losses the vapour to atmosphere and possesses ...

Read More »

Types of Breather Valves

Basic function of breather valve The breather valve also known as pressure/vacuum relief valve is a protective device mounted on the top of a fixed roof atmospheric storage tank.  Its primary function is to conserve the loss of storage tank content when the tank is in out-breathing mode.  The purpose & selection of breather valve is mainly to control the ...

Read More »