what material is suitable for Dp type pressure transmitter which is measuring flow of Ethylene ( -90 degc)? what measure should be considered to not let cell and impulse line not frozen in case of leakage around tubing and manifold? is heat tracing suitable and is not it dangerous? sharing any...
I want to install a flowmeter for liquid ethylene with temp around -96 degc, what type is the best flow meter for minimum straight run installation than can be installed in location that has around 4D ( nominal diameter of pipe) in upstream of flow meter with knowing that we already have vortex...
Dear All,
For buying vortex flowmeter to measure a fluid such as ethylene, do companies that sell this kind of flowmeter like Endress Huaser have special facility to calibrate this flowmeter based on data we have sent to them? if they does not have a fluid such as this one what they do? Do they...
Dear All,
Which company is better in terms of making valve Samson or Masoneilan? which company makes suitable valve for oil and gas sector? do you have any experience in this regard? I appreciate your kind answer.
Dear all,
In run down tank of lube oil system of compressors there are two restriction orifices as you can see in drawing attached. Problem ( in our particular situation ) is in start up condition when filling time of run down tank when HV1303 is fully open, time duration of filling tank is 40...
Hello Dear All,
I am going to purchase a redundant unit of processor PM861A for revamp project with order number or part number 3BSE018157R1, but I do not know if in this unit contains two processor unit of PM861A or just one? i have read somewhere that it contains two redundant cpu is it right?
Hello All,
my question is that would it be possible to put instrument multicore DO cables in a tray with instrument multicore DI,AO and AI cables in a distance about 330 meters? any problem would be possible to happen such as due to Do signal ON and OFF excitation ( 24VDC on-off signal of...
In our plant thermocouple sensor are transferring mv to marshaling cabinet. Then a transmitter barrier change it to 4-20 and goes to control station. My question is it possible to change mv signal of sensor to 4-20 via transmitter in site near furnaces in Olefin plant to than transfer 4-20 to...
Dear All,
I want to send a signal 4-20 ma from DCS through a converter (4-20 ma to ethernet) to the internet network and then from a PLC that is connected to internet i will get it.
Is it possible that a virus can spread through internet to converter and then to PLC? I mean if virus can...