Resurrection of a CFEI 100 KVA Induction Furnace

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awemawson:
Bowing to the inevitable I removed the cables / hose assemblies this morning, measured them up and I reckon in the current layout I can shorten them all by about one metre for a neater 'lay'.

Order placed with Anchor Pumps, who are the people who supplied the ceramic seal kit for that Grundfos pump by co-incidence, being the best value that I could find.

While I was at it I also ordered some reinforced neoprene 1" bore hose to replace the reinforced PVC that I'd fitted, reckoning that it'll be a bit more durable and things will already be drained down so relatively easy to do.

Bits should arrive mid next week. I now need to work out how to clean the ends of the 70 mm CSA welding cable that passes up the hose to a standard that will let me braze it to the fittings. Acid dip probably. As I recall I made a 'cup' shape on the fitting that passes into the hose and receives the cable, the hose being pulled a fair way down the cable and clamped to keep it away from the heat. Then the clamp is released, and the hose pulled onto the 3/4" body of the fitting and secured with two 'Band-It' stainless clamps.

Sea.dog:
Phosphoric acid should do the trick. Or maybe Baker's fluid.

AdeV:

--- Quote from: Sea.dog on July 02, 2020, 05:47:38 AM ---Phosphoric acid should do the trick. Or maybe Baker's fluid.

--- End quote ---

Baker's fluid for Brewer's cables?

Suddenly I am hungry and thirsty!

awemawson:
Very good Ade :clap:

Amazingly the replacement Brewers Hose and also the 1" bore chiller feed hose has arrived this afternoon - I only ordered it yesterday and it wasn't due until next Wednesday !

Now this is good, but I daren't start to re-make the hoses as I've got heavily involved in a bit of water diversion, re-using a redundant 20 mm feed that comes from the domestic garden / garage up to the barn and was crying out to be connected to the bore hole water system for garden watering. Intercepting the pipe down by the garage was easy as a manhole / stop cock marked it's run, albeit 4'6" deep (Remove stop cock, cap pipe, extend other part of pipe up wall to a tap) but to do this the water feed had to be turned off. BUT when I came to turn it back ON it was jammed closed (plastic tap) so although the house still has mains water, nowhere else (including the loo in my workshop or any of the animal troughs :() does. And getting at that stuck stop cock involves digging up the patio. The other end by the workshop / borehole pump was dead easy, just inserting a 25 mm Tee fitting with branch reduced to 20 mm - and is now all live and awaiting back filling.

. . . so I daren't start on those hoses until this mess is cleared up :bang:

awemawson:
Thank goodness normal service is resumed :thumbup:

A friend and I managed to unscrew and remove the entire top of the offending plastic stop cock by extending a special plumbing tap wrench to the depth of the line. Once the top was removed it was relatively easy to unscrew the jammed operating bits and re-assemble them. Once done the stop cock worked normally, but I really feel that plastic underground stop cocks are the pits, and best avoided. I wouldn't mind but they are not at all cheap!

So, on a roll we back filled the excavation for the new borehole sourced tap, and 'tracked' the ground with my JCB803 until reasonably firm. Raking the pea shingle back you'd not know we'd been there :ddb:

As far as that job is concerned there is just a 'Butler Sink' and associated hose reel gubbins to move over, screw the tap to the wall . . . . AND I CAN GET ON MAKING NEW HOSES :clap:

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