Those couplers should have an rpm/temp rating for the spiders iirc. Unless they are random internet ones
Those couplers should have an rpm/temp rating for the spiders iirc. Unless they are random internet ones
@nerd100 probably has the right idea then, going all metal.The couplers were purchased via AliExpress :Plum Coupler
The only specs given are diameter, length, and shaft size,....and the spider is Polyurethane.
Wait a minute, wait a minute. .83 LPM? you must mean .083 LPM? at .83 you would have a veritable explosion. You'd need a huge boiler.Steam flow rate was 0.83 LPM (Liters Per Minute) at just over 100 C and at nearly zero pressure. The coupler melted before I had a chance to measure RPMs and the voltage reading was made after RPMs had already dropped off. This test ended too quickly to have provided adequate data.
I THINK the coupler melted from heat created by friction as the stainless steel TT drive shaft spun inside the aluminum coupler, after the steam heat loosened the connection. I don't believe the steam heat alone melted the coupler's plastic spider. I'll tighten the coupler onto the shaft a bit tighter for the next test,...hopefully, that will be enough.
Both TT bearings are full ceramic which run "dry" (no grease or oil).
Wait a minute, wait a minute. .83 LPM? you must mean .083 LPM? at .83 you would have a veritable explosion. You'd need a huge boiler.
I still haven't been able to set the temp and pressure sensors to display accurate readings; view them as +/- 30.Hi, Can you explain Boiler temp out at "91", and 31psi? - sounds like hot water, not steam. If inlet pressure is 35psi, and outlet 31psi, then the inlet pump is providing the pressure, not the burner "adding enthalpy"(or something...??) if my thermodynamics is right? - SO I am not sure what this is telling me. (I stopped video at 15 seconds run-time).
Thanks,
K2
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