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  • Users: warrenelec
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  1. warrenelec

    Viscosity of API 22?

    Hi, I need to know what the approximate viscosity of API 22 oil would be. there are limited resources on the internet that i can find. Is it similar to #6 oil where the viscosity can vary widely? I apologize if this is a dumb question, but I am not in the industry. any help is appreciated...
  2. warrenelec

    Class 1 Div 1/2 enclosure question

    i am working on a new design for an electrical termination box for an resistance element heater. i am using a killark box rated as explosion proof suitable for class 1/ div 1 hazardous areas. the box has a 2" NPT opening in the back of it & a 3/4" NPT opening on the side for rigid conduit...
  3. warrenelec

    Tank Freeze Protection Heat Losses/NFPA help

    Hi, I have received quotes for electric heaters to freeze protect a large water holding tank. One suggetsts a 25 KW (approx 85000 BTU/hr loss) heating requirement & one a 90 KW (approx 307000 BTU/hr loss)heating requirement. it is a 36' diameter x 40' high tank on a concrete slab w/ R-10.2...
  4. warrenelec

    NEC question re: resistance heating elements

    good afternoon, I have an electric resistance water boiler heater rated at 420 KW inside of an ASME vessel. Power is divided into 12 circuits drawing 44 amps each which is acceptable according to NEC 422.11(F) (circuits subdivided into < 48 amps/circuit - code listed below for reference). The...
  5. warrenelec

    Bulb &amp; Capillary Thermostat for -40 deg Ambient

    Hello, I need to find a bulb & capillary thermostat to control a heater in a hydraulic reservoir (to maintain about +60 degrees F). This will be used in a control box where the ambient temperature could go as low a -40 degrees F (military application). Does anyone know where to find a...
  6. warrenelec

    Freeze Protecting Open top Tank

    Hi, I need to keep an OPEN TOP water tank from freezing & need to determine the approximate heat loss per unit area. (Minimum ambient temperature is 0 degrees F & I'd like to maintain 42 degrees f). I can calculate the losses through the walls of the tank but not the top-I have one chart for...
  7. warrenelec

    Cord grip for bulb &amp; capillary thermostat

    Hi, using a remotely mounted bulb and capillary thermostat for a project. Thermostat is in a NEMA 4 box, but the bulb & capillary will be run through a 3/4" screw tight coupling outside of the box to a tank...i need to seal around the capillary to keep moisture out of the box. I was thinking...
  8. warrenelec

    Ammonium Acetate/deionized water and 316ss

    Hi, Looking to heat up a solution of ammonium acetate/DI water solution in a n agitation tank...is 316SS acceptable? Operating Temp is 95 deg. C?(will be passivated & electropolished). Thanks
  9. warrenelec

    Crude Oil w/ Vanadium &amp; Sodium

    Hi, Designing a heating unit to raise the temperature of #6 oil containing sodium & vanadium to about 265 deg F. Will carbon steel corrode under these conditions or should 304 stainless be used for the construction? Thanks
  10. warrenelec

    Material selection - Electric HX

    I am working on a system that will require a resistance heating element to aid in freeze protecting a seawater tank. There is no flow (static fluid). I need to slect a sheath alloy to be directly immersed in the fluid. The available materials are 316SS, 316LSS, Incoly 840, Incoloy 800, and...
  11. warrenelec

    DIN Flange Standards

    Hi, I am quoting a piece of equipment for a customer who only has a drawing of the part that they will need (existing system in europe). The spec shows a flange that is a DIN 2527 (100xPN16 304SS flange). I can't find much on the internet...does this have a raised face or a flat face? If...
  12. warrenelec

    DIN 41612 type M female right angle conn

    Does anyone here know of someone who manufactures these types of connectors, or will this need to be custom? I am essentially trying to find the right angle equivalent of an ERNI 593763 connector. Straight pin spec is attached, any help is appreciated!
  13. warrenelec

    Specific Heat of MIL-PRF-7808?????

    I can't fin this info anywhere. Any help is appreciated. Warren
  14. warrenelec

    Specific Heat of MIL-PRF-7808?????

    Can't find this info anywhere? any help appreciated Warren
  15. warrenelec

    input $ values in text boxes

    Hi, I'm pretty new to VB and have pretty much taught myself, so this should be pretty easy. I have created a pricing program in MS Excel w VB macros where I would like the user to input variables into a form, then variables would be entered into cells. I would like to: A) allow the user to...
  16. warrenelec

    Can't get DOS based programs to run in Windows!!

    Hi, I am trying to run a DOS based program on Windows XP. When I try to open a window to run DOS, I get th following error message: C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft Windows applications. Choose 'Close' to terminate the...
  17. warrenelec

    rivet spacing for sheet metal to steel frame

    Hi, I am designing an oven whose frame is madde of steel tubing and is to be covered with .065" sheet metal. The sheets will be attached with rivets, and i need assistance with determining rivet spacing. The sheets will not see any load outside of the weight of the sheets. Would 6" spacing in a...
  18. warrenelec

    Drying Oven Design

    Hi, I need to help design a drying oven for some parts. Unfortunately, I am not sure where to begin. We manufacture electric heaters , so as a cost saving measure are attempting to design an oven to dry heating elements and manufacture it in-house. I can calculate what is needed for heating...
  19. warrenelec

    Carbonitriding Cost

    Hi, I've been asked by my boss to try to find someone to corbonitride some small steel parts. Our previous vendor has gone out of business and I am not sure where I can find another vendor. Cost is an issue. Thanks for any help
  20. warrenelec

    change z coordinates on soldraw view to zero?

    I created an isometric view using the solview and soldraw commands on an object. I would like to change the z coordinates so that they are all zero. Is this possible?

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