Hi XL83NL,
Do you know what, I would have to check if I can get my hands on it - I do realize it's probably a good thing to have on hands, but for us, automation guys, it rarely becomes a necessity. These queries above are more once-off questions, that would allow me to educate myself further...
Hey guys,
Thanks a million for your responses.
The differences are subtle. I am looking at a valve now, where the piping spec indicated connection to be a raised face flange, PN 10.
The valve body is DN100. It's specified with a PN-10 flange, which, according to LittleInch's chart varies in...
Hey guys,
I've looked around some other threads and other links that Google has spewed back at me, but I thought I'd double check with piping experts here.
It's a very simple query from a non-piping engineer (I'm automation). We have a tank with an EN 1092-1 nozzle, named K1, of size = DN80...
Hi there,
I am wondering, what are the constraints on supplying a number of loads in the same ATEX zone with one breaker feed and daisy-chaining them? The supply is 230V, but the load demand is very small so we were hoping to link these devices and put them all on one circuit.
Is this...
Hi all,
My team and I have been posed with an interesting question today. We're not mechanical engineers so we're looking for some input and guidance.
We have a gas detector provided with a direct duct mount kit (Det Tronics 007525-005, horizontal mount for PIRECL sensor) that looks like a...
The only problem I have is that this branch tie-in could be done inside UL-51697. Why do they want to tie so early before the room? Room = further purification, outside the room = initial purification. Maybe they need to ensure the pressure drops BEFORE the process proceeds on to the next stage...
This is what I'm talking about. More I read from you, guys, more I'm convinced to stick to isolating before the PRV.
I attached a part of the process. Yellow line is kept at 6 bar (supplying line is already at 6 bar, but fluctuating, so PRV to maintain preset pressure with possibility of...
Hmm... I'll suggest it to them. I'll look into those high quality valves that can do both at the same time, but it does make sense to separate both jobs. Even for maintenance of the PRV. How come regulators aren't that great at isolating? Surely they should handle being fully closed? Sorry...
That's perfect, LittleInch.
So this mysterious PICV that entails both isolation and pressure regulating jobs isn't desirable if shutdown (i.e closing of the valve) is done frequently?
I also wonder if my P&ID show PICVs as Pressure Indicator Control Valve or Pressure Independent Control...
Hmm, I suggested the same solution, I guess the client is trying to save space and money!
But, out of curiosity - is there a valve, that can do a two-step job like I described? I've seen a similar setup in a Quality Lab, where they didn't want to see 6 bar, so on the inlet, there indeed was 6...
Hi gentlemen, I'm new to this forum!
I have a question regarding a PRV. There is an existing line of pressurised air that is planned to be divided at one user point into two. One branch will be reducing pressure to 2, and another should stay at 6. Now, is there a PRV, that will be pre-set to...
