Additional Information

1. The plate material to be used for the vessel shell, and the support ring and footer plate, are not indicated on the drawing. I assume it with be SA-414G, since this is what has been used for the heads. If this assumption is not correct, please advise what material is intended. The heads are shown as having a central flat spot, instead of being elliptical. Is this what is intended, or may the heads be elliptical? Shell cylinder length is not shown. I can select a length for it, but need to know if the volumetric capacity of the shell is critical to its operational functions. Item# 1 We use 1/4" A36 plate now for the shell and base ring now. ( John we want to use what ever plate is the easiest to obtain ) The heads are elliptical. The shell is 2'6". 2. The cutout in the support ring is shown as being 12 inches tall and 14 inches wide. Is this width the actual width of the hole cut into the ring before rolling, or is it the required width of the opening in the support ring after rolling? Support ring diameter is not shown. I can select a diameter if this is not a critical dimension. Item #2 The cut out is 12" x 14" cut after rolling,Diam. of support ring 19" 3. The coupling materials have not been identified. I assume they will be SA-105 Couplings compliant with ASME B16.11. If this is not the case, please advise. Item #3 Yes SA 105,ASME B16.11 4. The pipe elbow seems to be a short radius elbow. Is this correct? I assume it to be an SA-234 WPB SCH 40 fitting produced in compliance with ASME B16.9. If this is not correct, please advise. Item #4 Yes Short Radius, SA-234 SCH 40, ASME B16.9 5. The hammer union appears to be welded to a short length of NPS8 pipe, which is inserted into the shell. If the hammer union includes a short cylindrical length instead of being welded to a pipe segment, please advise. If you have a product brochure or the name of the manufacturer, I would like to get more information about the hammer union. Item #5 The Hammer Union is threaded to the pipe and welded into the the shell. Hammer unions are Manf. by Frac Tank Supply, Midland TX 79705 Telp. # 432-6869366 6. The hammer union appears to be inserted into the shell by penetrating the shell long seam. I recommend locating the vessel shell long seam on the opposite side of the shell from the hammer union penetration. Item #6 The long seam is on the other side 7. The lifting lugs do not have a very well defined design. If this is not critical, I will prepare a suitable design. If a minimum hole size in the lifting lug is required,

please advise. Also, if the lugs are required to be a different size and not identical, please advise. Item #7 The lifting lugs are Manf. by Phoenix Tank & Cylinder Fitting, Catasauqua, PA 18032-2343 Item # Lifting Lugs 2-900-LUG Telp. 610-264-2861 8. The internally located "Mist Distractor" is not well enough detailed to be able to accurately account for it in the fabrication drawing. Please provide more dimensional information, details of its shape, and any critical dimensions regarding its location, placement, and orientation. It appears it may be attached to the NPS2 coupling in the center of the upper head by a threaded pipe NPS2 TOE pipe nipple which is welded into the "Mist Distractor". Item #8 You are correct the mist extractor is welded to the nipple and threaded to the coupling. I will get you a better drawing on the mist extractor 9. The vessel nameplate is shown as being 1/4 inch thick. It need not be this thick, but it can be if you want it to be. I recommend using a 1/16th inch thick piece of SA36 plate, which should be adequate. Item#9 The vessel name plate is Manf. by Seton Identification Products Material . 032 Stainless Steel 3" x 5.5" 10. Inward and outward projection dimensions are not shown for most of the vessel openings. If any of these projection dimensions are critical, please advise. Otherwise, I will make some reasonable decisions on what they should be. Item#10 The only critical one is the bottom it must be flush on the inside all the rest we leave 7/8" on the out side 11. I believe I heard you mention this vessel needs to have an internal pressure rating of 250 psig. Is this correct? Any chance of the vessel falling into a vacuum condition? What is the maximum operating design temperature for the vessel? Will the vessel be located outdoors, and require a minimum design temperature rating suitable for weather conditions year round? This may be very cold up north, or not so cold down south. Please advise as to the required design operating parameters. Item#11 250# is correct, No Vacuume, operating temp. the units are always out side from cold north to warm south