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Hi group member To do work in a safety PLC system you have to be SIS certified in the metering system do you need some certificate to work or design/rectify the metering system HMI refers to any standard?

no answer?

I have a 4-way diverter valve hydraulic actuator, the sequence of unseating is not working, the actuator is trying to unseat but it fails (see attached drawing)can I have support .what is cause before we do any action you hear the oil return back to the tank, when we opened the drain line...

([highlight #FCE94F]1. I am puzzled when you ask ... " between Line to Line". The (ohmic reading) across [Line to Line] would be the [winding resistance]. This is not what you ask when you state " PI for the insulation resistance) Thanks, I'm wanting to make sure is it standard to take IR...

Hi In a 3Ph generator, 400 V 500KVA What is the expected value of PI for the insulation resistance between Line to Line

In a temp sensor test certificate, what is last column 93.cms meaning? see attached https://files.engineering.com/getfile.aspx?folder=378f42fa-9de3-49e7-a557-fdd71e74ce41&file=MMC_CALIBRATION_CERTIFCATE.pdf

Do you mean breakdown report and history of failure? Also, I need confirmation, do I need a thrust block for the pin lock pipe or not? Indeed, I owe you the amount of information and guidance I learned from you and your wonderful interventions, and I thank you again

that what we did in last 10 or 15 years, repair here failed there, for this, we are intended to identify why this failure? is it operation failure, or a lifetime, or poor installation, or what the problem?

Dear All Thanks for your good info Please any suggestion for a company from the middle east or north Africa to Identify the root cause and submit a report for a repair plan I tried to contact AMERON, but AMERON not responded

manufactured by Ameron

This methods of repair will apply to all types of joints

thread378-413013 The main underground firefighting ring has been designed and executed in1998 to deliver water to all the firefighting outlets i.e. hydrants, monitors… etc.; the main ring has been executed from 12-inch size Glass reinforced epoxy (GRE) pipes and 4-inch branches pipes, with the...

in case of safety PLC yes but this is normal hard relay control,no self diagnostic system .

I have joystick in hyd oil system ,contact point are connected in series and parallel with 1K ohm resistance .why ?http://files.engineering.com/getfile.aspx?folder=4cfc3d48-3736-4705-9140-7ae3b35c0be2&file=IMG_20171211_143609.jpg