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#1
01/28/2007, 09:08 PM
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eheim 1262
Hey, has anyone else had this problem? My Eheim 1262 input isn't fitting with the 1' male threaded hose adapter... it's too small! Everything written about the 122 has it with a 1' input but this is very clearly a 3/4' female threaded input (when I grabbed the hose barb from the eheim box it was a 3/4' and it fit perfectly.
Any ideas?
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"Walk the bridges before you burn them down..." --eddie vedder |
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#2
01/28/2007, 09:46 PM
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I don't have my 1262 any more, but I do remember that it came with 2 hose barbs -- a 1" and a 3/4", and that I could screw either one onto either end (i.e. the 1" and 3/4" fit on the output, or the input). The threads are actually slightly more than 3/4", so if you want to plumb it up with NPT fittings, use a sched 80 threaded fitting with a bit of teflon tape wrapped around it.
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"Misers get up early in the morning; and burglars, I am informed, get up the night before." - GK Chesterton |
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#6
01/29/2007, 12:09 AM
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I don't know about anyone else but my 1262 has a 3/4" threaded connections on both the inlet and the outlet. The internal diameter of the two adapters that are included are different though. The inlet has a 1" hose connection while the discharge has a 3/4' hose connection. Restricting the flow on the discharge increases the pressure, its like putting your finger over the outlet of a garden hose. It builds up pressure to pump up to the 12 or so feet these pumps are rated for. The hose sizes fit the "outside" diameter of the pump adapters so the 1" hose fits onto an 11/16" internal diameter connection and the 3/4" hose fits onto a 9/16 I.D. connection...just remember they refer to hose sizes not pipe sizes.
Oh, NPT means National Pipe Thread...its a tapered thread that's standard no matter what schedule piping being used. Electrical piping is not always NPT, most of their threads are not tapered 'cause electricity doesn't leak out through threaded connections and they don't have to be as tight as process piping connections.   These are from an unused 1262 that I just took out of its box. The threaded inlets to the pump are in the bottom pic and are identical..the upper pic shows the hose connection side of each adapter. Great for a sump pump but I would use two of the inlets adapters for a closed loop where lots of flow without lots of pressure is desired. Just my take on this pump..... Oh and if you take notice, Eheim uses o-rings to make the connections watertight. They are plainly visible in the lower pic. It might explain why other users are having probs when they adapt different fittings to either end. Eheim is not relying on the threads to make the seal. |
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#8
01/29/2007, 08:09 AM
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Quote:
__________________
"Misers get up early in the morning; and burglars, I am informed, get up the night before." - GK Chesterton |
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