 | american plumbing in the UK |
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Question: We are in the process of building a new kitchen. For the tap we would like to use the same one we had in our last kitchen in the US. The fitting for these are indicated on the technical drawings as '1/2" NPSM coupling nut for 3/8" or 1/2" flexible riser'. Would I need any special adapter couple the standard UK plastic pipe to this? If so, where might I find such an adapter? I realise that mixer taps are made a bit differently here, mostly to prevent syphoning from the hot water tank into the cold water system in the case of low pressure. Since we have a combi boiler, this isn't a concern, so assume the american taps can be used safely.
Answer: Apparently; The 'N' is for National versus the 'B' which is for British ... so the USAians have at least a different nomenclature if not any different size for their water connections; American National Standard Pipe Threads NPT: National Pipe Taper Thread A sealant compound or Teflon tape must be used for a leak-free seal. FPT: female (internal) National Pipe Taper threads MPT: male (external) National Pipe Taper threads NPTF: Dryseal American National Standard Taper Pipe Thread No sealant is needed for a seal. NPS: American Standard Straight Pipe Thread Used for mechanical joining -- holding a fitting in place. An O-ring or a metal seal is required. NPSF: Dryseal American National Standard Straight Pipe Thread British Standard Pipe Thread BSPT: British Standard Pipe Taper threads BSPP: British Standard Pipe Parallel (straight) threads Assuming that NSPM is National Pipe Standard _Male_ then one might need a BSP(parallel) ... ? Aren't there water bye-laws insisting that only 'approved' appliances are connected to the water-main?
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