We have a mixture of isolation valves in our plant for Hot Oil (CALFLO). Triple offset butterfly, globe (Y and std), and gate. For pure line stop valves would you chose Butterfly, Y globe, or Gate? Oil runs at 550F
Sorry if there's another post relating to this. I searched but couldn't find any. The vast majority of chemcial sites that i've been to or worked at use flagned 150# stainless ball valve with some form of soft seat for process lines. One site I visited is using plug valves for process instead...
I need to replace an older Hot City water piping system. Water is heated in a storage tank and piped to vessel jackets for heat. Temperature of the system is 75C. No treatment chemicas are added as this water is used for vessel cleaning. Its currently galvanized pipe. At previous sites...
3d Trasar is NALCOs online system which monitors chemical levels in water treatment of boilers, cooling towers, etc. It will also handle boiler blowdowns among other things. It’s usually hooked to chemical feed tanks with pumps to dispense the chemical into the system.
If I'm reading the code right I'm required to do a functional test of my PSV every 2 or 3 years depending on class. Can someone help me out of the functional test? For or reactor PSVs we send to a VR facility every year for testing but for steam, nitrogen, and air we test by lifting the handle...
I got one. I have a ASME code pressure vessel with a dimple jacket. The jacket was assumed to be rated at 75 PSIG @ 575F MAWP, but the U-1 indicates its 45 PSIG @ 575F. Is there a process to get the jacket rating increased?
What code should I review in th US to determine if I need to use firesalve? I know API 607 covers the valve itself but what standard governs the use of fire safe valve?
Currently my company uses ASTM A53 Grade A for all steam and condensate service. Our main boiler pressure is 130 PSIG. Can someone help explain to me why you would use one or the other and if ASTM A53 Grade A or B is acceptable for my application? My previous company use ASTM A106 for steam...
We exclusively use RTDs at our site for temperatures measurement. For 75% of the time we have an associated transmitter, but for our older facility we have RTD going straight back to the DCS IO Card. So for ISO reasons we have to calibrate each RTD each year. For the transmitters we simply...
