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  1. az5333

    Weight of Expansion Joint Assembly in CII

    Hi All, I am trying to model an EJ using the vendor catalog and drawing provided by the vendor. The vendor has provided weight of the EJ assembly. I am trying to understand how to incorporate that weight of the EJ in my analysis. I was thinking CII takes care of weight itself considering size of...
  2. az5333

    Vent Requirement on OH3 Seal Plan 13

    Hi fellow engineers. A pump supplier has provided us a vent with API Plan 13 for an API 610 vertical inline OH3 pump. I did not know there was a requirement of a vent. Do we know why it is required and can we blind it off? Thanks.
  3. az5333

    Sphere Deluge Nozzle / Sprinkler Design

    Thank you so much @skdesigner for your response and very helpful feedback.
  4. az5333

    Sphere Deluge Nozzle / Sprinkler Design

    Hi Fellow Fire Professionals, I am working on designing a deluge spray nozzle for a sphere holding hydrocarbons (BLEVE risk). The client has their own design of installing an umbrella type upright spray nozzle at the top center of the sphere. Once the deluge valve is activated, the water will...
  5. az5333

    ANSI Pump Allowable Nozzle Loads Vs Actual Loads

    Hi fellow experienced Engineers, I am doing a stress analysis for an exsiting piping connected to an ANSI horizontal pump that has given allowable nozzle loads / moments for the suction and discharge nozzle. I am consistently getting very high Fb and Fc for the operating cases (high temp and...
  6. az5333

    Camlock Adaptor Material Selection for CS Pipe Connection

    Hi LittleInch - thank you very much for your quick feedback. You are surely a very active and knowledgeable member of this group and I follow your responses on other posts very keenly. Thanks again.
  7. az5333

    Camlock Adaptor Material Selection for CS Pipe Connection

    Hi fellow members. I am specifying a camlock Type-A adaptor threaded to a CS pipe nipple for firewater application. The adaptor is there for the vac truck to connect to whenever line draining is required. The camlock Type-A adaptor is only available in brass, aluminum or SS material. My question...
  8. az5333

    Liquid Wax Pump Discharge Pressure

    Hi 1503-44, Thanks. So basically you are saying I need to know the viscosity of the product at close to 0 gpm flowrate and at the required flowrate (in my case 20 gpm). Should I contact the client to provide me that info for their product? I doubt they will have the viscosity at various...
  9. az5333

    Liquid Wax Pump Discharge Pressure

    Hi 1503-44 and LittleInch, The line is steam-traced / insulated and will be maintained at a constant temperature of around 100oC. I have the viscosity of the product at this temperature. I am trying to use FluidFlow software to do the hydraulics but cannot find a way to custom define the wax I...
  10. az5333

    Emergency Vent Snow Load Consideration for Pressure Setpoint

    Very true LittleInch..This is the reason I am seeking out other expert opinions on this forum as I don't want to go by my assumptions...:-)
  11. az5333

    Liquid Wax Pump Discharge Pressure

    Hi 1503-44, any simple reference to perform hydraulic pressure drop calculation for such a fluid? I am looking for a simple one as the calculation does not have to be exact.
  12. az5333

    Liquid Wax Pump Discharge Pressure

    Thank you LittleInch and TiCl4 for the feedback. Thank you very much pierreick for sharing the paper. I will go through it. So this is an established fact that waxes ("Paraffin Wax" and "Microcrystalline Wax") are considered as Non-Newtonian fluids? I was finding differing opinions when I...
  13. az5333

    Emergency Vent Snow Load Consideration for Pressure Setpoint

    Thank you MJCronin, LittleInch, JStephen and IFRs for your thoughts and feedback on it. I will keep you guys updated about what solution we end up with in our case. I was also of the opinion that since Emergency Vents are designed for a "Fire" exposure scenario, any snow that might be on...
  14. az5333

    Liquid Wax Pump Discharge Pressure

    HI, I am trying to fill out a data sheet for a PD rotary (gear type) pump needed for a client. The product is wax liquid with a viscosity of as high as 2500 cP at 212 F. I know the required pressure at the equipment inlet where the pump has to feed to, so I am trying to back calculate what the...
  15. az5333

    Emergency Vent Snow Load Consideration for Pressure Setpoint

    Hi MJCronin, Thank you very much for your response. Please see responses to your questions below. Please let me know any other info you might want to consider to provide your feedback based on your experience. Thanks you. Specifically, what type of roof is on the tank ? Conical non-frangible...
  16. az5333

    Emergency Vent Snow Load Consideration for Pressure Setpoint

    Hi, I am working on sizing an Emergency Vent [EV] for an API650 atmospheric storage tank built using API 2000 standard. I understand that API 2000 gives guidance in terms of capacity required for the EV. However, after I am done sizing the EV (per API 2000), next step is to determine the right...
  17. az5333

    ULC S601 Tank for Indoor Location and Difference from API 650

    Thanks JStephen for the explanation. Looks like UL-142 is the US equivalent for ULC-S601 standard.
  18. az5333

    Backup Foam Concentrate PD Pump Requirement

    Hi fellow members. I have recently been working on a project where we are engineering a new foam system to be incorporated into the client's existing firewater system. This is to have a foam-water solution for effective firefighting application. We are going with an atmospheric storage tank with...
  19. az5333

    ULC S601 Tank for Indoor Location and Difference from API 650

    Thanks JStephen for the response. Okay got it. Does that also mean that API 650 tanks (storing combustible and flammable liquids) are only meant for outdoor installations only and if it has to be installed indoors, any tank with combustible / flammable liquids has to follow one of the specs...
  20. az5333

    ULC S601 Tank for Indoor Location and Difference from API 650

    HI. I am working on a project where we are evaluating if a ULC S601 designed diesel storage tank (supplying fuel oil to the diesel engine placed in the same room) is suitable for indoor installation or not? As per ULC S601, installation of such tanks shall be in accordance with National Fire...

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