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q coil circulation pumptype of pump vertical in line locate on supply side of coil valving indicated isolation valves on suction and discharge check
are the types of pumps selected base mounted in-linelocate pump on discharge side of boiler flexible connector used valving indicated isolation valve
q shut-off valves on major zoneare shut-off valves on major zone branches and on the bottom and top of riser are balancing valves on return branches
bullinsulation thicknessbullheat tracing type glycol electric steambullcontrolled or self-limitingbulltrapsbullidentificationbullrequirements
does the selected system meet the requirements of the application building purging make-up air filtration ventilationis the system suitable for the
the following guidelines are intended to assist the hvac lead designer or auditor in preparing an assessment of the quality of the hvac engineering
q sustained bending momentwhen sustained bending moments or axial thrust loadings are applied to the flanged joint during operation in sufficient
q pressure relief valve applicationa general comparison of operational characteristics is given for the different types of pressure relief valves in
q local stresseslocal stresses in the vessel shellheadskirtbase rings from the lifting attachments such as lugs trunnions etc shall be determined for
vertical vessels having height-to-diameter ratios greater than 8 and weighing more than 25000 lb 11300 kg shall have bending stresses in the vessel
impact factor on vessel rigging analysisunless otherwise specified by the user a minimum impact factor of 15 shall be applied to the lift weight for
q show pneumatic testpneumatic testing presents hazards that must be addressed as part of the engineering design of the pressure vesseldue to the
q horizontal vessels and vertical vesselshorizontal vesselsa horizontal vessel designed to support a full weight load of water shall be tested while
q explain about hydrostatic testall paragraph must be met when the hydrostatic test is employed ug-99b including footnote 32 shall be considered to
q what is erosion lossadditional metal thickness must be added in specific locations where metal loss is expected due to stream flow that is of high
q show corrosion lossadditional metal thickness must be added to compensate for anticipated loss due to metal reacting with the environments to which
q corrosion - erosion allowancethe required design life shall be based on written agreement between the user and the engineering contractor
q source of materialsthe user may restrict sources of fabrication materials if there is a restriction the prospective manufacturers must be informed
q explain about horizontal vesselshorizontal vessels shall preferably be designed for two saddle supports attached by welding design of saddle
q explain about vertical vesselsvertical vessels shall normally be designed as self-supporting units and shall resist overturn based upon wind or
q show the vessel supportsapproved materials and allowable stresses shall be used for vessels and their supportsfor structural shape support members
q show the vessel internalsfunctional design of trays and other removable internals are outside the scope of this documentremovable internals shall
q vessels resting on concrete foundationsfor vessels resting on concrete foundations the allowable concrete bearing stress shall be 750 psi 5 mpa
q explain working of nozzlesnozzles supporting agitators pumps or other mechanical equipment shall be suitably reinforced to withstand the mechanical
q flange facing and surface finishraised face flange facings are preferredflat face flanges to be used only when mating with like equipment