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  • Users: imagineers
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  1. imagineers

    BSPP STRAIGHT THREAD TORQUE REQUIRED TO COMPRESS RUBBER WASHER SEAL

    So basically I am wondering what torque to use on a BSPP fitting similar to this link below. I want to compress the washer inside but my torque value will determine how much the rubber washer compresses. I understand you need durometer value to determine this also, but assuming a 60-70 durometer...
  2. imagineers

    WELDING AN ADAPTER FITTING TO A PIPE

    So I have asked a similar question before however I am machining a part and welding it to a tube. 1.5" tube 1.65 wall. I am machining an adapter to house a pressure fitting and I was thinking of just making a slightly oversized hole and dropping the fitting in and welding around to join them...
  3. imagineers

    WELDING CONTAMINATION IN SANITARY WELD FITTINGS

    So I guess my question is, once stainless 304 pipe is welded toghether through butt weld joint or whatever, and food or beverage is passing through the pipe, can the weld cause any kif of food contamination as it the fluid of food passes by it if that makes sense?
  4. imagineers

    WELDING FITTINGS AND WALLS OF TANK

    Ok so I have a tank I am getting made in China. Several fittings on the endplate. End plate sheet thickness is stainless 304 2mm thick. as you can see the model shows the endplate butt welded up against the other two components sheet on top and lower bent sheet. China is wanting to increase the...
  5. imagineers

    HOSE BARB STANDARDS

    Ok so I think I have asked this but did not get the answer I was looking for. I am looking for a standard dimension spec for hose barbs that use clamps. Similar to the type of barb used here. http://www.mcmaster.com/#5346k68/=10jy58g I have found the SAEJ2552 push on hose stadard, but it...
  6. imagineers

    BEST WAY TO MAKE THIS?

    So this is a cover for a small radiator for a computer. Now, I was wondering can this be made with a two cavity mold, basically, pull tom and bottom and side actions for front back? what about the lowest draft angle, as 5 degrees over 128mm distance changes the width too much from top to bottom...
  7. imagineers

    Can this be made by CNC?

    So I thinking of trying to machine this out of aluminum, it is a dock for a magic mouse made by apple. Approx 5" long by about 5" long by about 3" wide by about 1.5" tall. The groove inside I guess is the question. i know the rest can be made with CNC. I dont want to cast if I can avoid it...
  8. imagineers

    WELDOLET VS COUPLING

    so is it better to buy a weldolet to use as an outlet branch, or a threaded half coupling? Weldolet costs almost triple the price, and requires more weld passes I assume. My other question is how would you weld a coupling to a pipe, just cut a hole in the pipe and lay the coupling on top and...
  9. imagineers

    HOW TO CUT THE PARTS AND WELD THIS

    So I have a manifold made up of 1" stainless pipe, with some fittings welded onto the ends. I have a coupld questions. 1. if you see the branches the are cut in 3d to fit the long pipe perfecty, however is this how you would fabricate these branches with these weird sharp edges then weld it or...
  10. imagineers

    IS THIS MANIFOLD POSSIBLE

    ok so I have seen some pretty funky muffler pipes. However this isnt a muffler, it is holding liquid glycol/ water mix. The model in the pic shows three 90 butt weld pipe ends kind of put together with a 1.0 pipe, another 90 into a triclamp fitting. its stainless steel, and 1.0" od and .109"...
  11. imagineers

    MINIMUM BEND RADIUS

    I have a 1" stainless pipe, with a 1.097" ID and a 1.315" od. I found a chart which says the min bend radius of this would be around 2.2". Does this make sense or can I go even smaller on the bend. It is used in a cooling glycol circuit, pressure from around 5psi operating to around 25psi...
  12. imagineers

    CAN THIS BE WELDED THIS WAY

    So I am designing a manifold out of 1" stainless pipe. the ID is around 1.0979"= 27mm, now I want to add a branch off this not a coupling, but anotehr piece of the same size pipe. My question is whats the best way to join them. I am not sure if I would make a large hole in the long pipe and try...
  13. imagineers

    WELDING AROUND TANK

    I am wondering the best practice or common practice for welding around the edge of a box, which will be a reservoir tank. In the picture you can see two concepts. 1. the side plates are undersized slightly to do a fillet weld all around, or 2. keep the faces flush and doing a fillet weld around...
  14. imagineers

    Strenghtening Water Tank

    I am designing a water tank 13"x 6" x 6", and it should be able to handle around 250psi, I am not sure how to structurally make it stronger inside. As you can see in the pic I have three outlets and one inlet, also in the pic you can see drawn in red an idea on a couple ribs to be welded into...
  15. imagineers

    Water Tank Strengthening

    I am designing a water tank 13"x 6" x 6", and it should be able to handle around 250psi, I am not sure how to structurally make it stronger inside. As you can see in the pic I have three outlets and one inlet, also in the pic you can see drawn in red an idea on a couple ribs to be welded into...
  16. imagineers

    STRENGTHENING AN ENCLOSURE

    I am designing an enclosure for several components. Total weight of the components with fluid is around 100lbs. the box is around 427mm x 904mm x 173mm. It is a simple box with bent walls and a top bend flange for some strength, but I am a little concerned that maybe the bottom may be kind of...
  17. imagineers

    HOWE TO MACHINE THIS? WITHOUT CAST

    This part looks machined, not cast, although many of these kind of parts looks cast. http://files.engineering.com/getfile.aspx?folder=70132bd3-f17b-413e-b6fd-09155b7b18ad&file=FIT070.jpg
  18. imagineers

    solder or braze heat pipe to plated aluminum

    I am not sure if this is possible. I know you cannot solder to anodized aluminum without first sanding and taking off the anodizing in that area, but what about nickel plating the aluminum then brazing a heat pipe to it? if not Is there any way other than thermal epoxy to secure the heat...
  19. imagineers

    EXCEEDING MAXIMUM FLOW RATE

    ok so I have a plate to plate heat exchanger, http://www.mcmaster.com/#35115k62/=wzpg0d it lists the flow capacity at 6gpm. my question is what happens if i try using a 30l/min pump to push fluid through it? I guess for that matter what happens if you try to exceed the flow rate on a pipe in...
  20. imagineers

    Calculating safe operating load on a hydraulic press

    I would like to calculate the safe operating load on a hydraulic press we have. There is no operating label or load label on it. Is there a way to calculate this ? I attached a pic http://files.engineering.com/getfile.aspx?folder=dcc531ce-a779-4eec-9e36-70a638ee7209&file=image.jpg

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