I believe the line is drained after offloading so the coupling will be exposed to the atmosphere after each offload.
I'm not sure why Hastelloy was specified as all other equipment we have on HCL duty is lined but I wouldn't have expected them to fail after only 1 year in service.
Hi we have been using a dry break coupling on a tanker offload facility where we offload 36% HCL at ambient temperatures.
The dry break coupling has been in service for approximately 1 year and the material of construction is hastelloy C22. We had a PMI test carried out to confirm this. The...
Hello,
On site one of our bursting disks is situated in a vent on top of the roof. The vent is covered by a canvas weather enclosure to prevent any water from gathering on the vent side of the bursting disc.
The weather enclosure is held down by a ratchet strap slung around the canvas and...
Thanks for the replies.
If the minimum temperatures is stated to avoid issues with freezing during hydrotesting, out of curiosity, do you know how they manage this in climates where the temperature rarely gets above freezing? I'm thinking of places like Alaska, do they substitute the water for...
Hello,
I have been asked by my client to look into the minimum temperature at which we can hydrotest during the winter. The local site standard states a minimum temperature of 7 deg C but we are not sure where this minimum temperature is derived from. Our company hydrotest criteria states a...
