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coupler

Janney couplers are a semi-automatic form of railway coupling that allow rail cars and locomotives to be securely linked together without rail workers having to get between the vehicles. They are also known as American, AAR, APT, ARA, MCB, knuckle, buckeye, or center-buffer couplers.

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  1. Sannie

    URGENT Soil Pipe Connection

    What size coupler do I need to connect soil pipe to main drain - please see photos
  2. T

    Slip Coupler soil stack

    Hi all, Quick question. Is there a difference between the black soil stack coupler and the brown outdoor pipe coupler other than the colour? My piping will be concealed so just checking I can use the brown/outdoor ones on inside stack...
  3. gb17342

    Hot water with Philmac coupler?

    Can I use a Philmac transition coupler on a hot water pipe? Couldn't find the information online and Philmac customer service doesn't answer the phone. It's a 22mm plastic pipe that transitions on to a lead pipe which is around 32mm, the current coupler of unknown brand has failed and I can't...
  4. gb17342

    Would you replace this coupler?

    Slightly daft question when you can't tell the size of the space but I'm wondering if I should replace this 32mm compression coupler (circled) with a solvent weld connection? It was installed by a professional a couple of years ago but I've noticed the pipe twists a little, I noticed this when I...
  5. D

    URGENT Bathroom Sink Coupler Down Pipe Issue

    Excuse me for my lack of knowledge in this but i'm a first time buyer so this is all very new to me. Last month i moved into a property in SE London which seems to have developed a bit of an issue since the weekend. The back of the bathroom sink isn't connected properly - as you can see in the...
  6. D

    pipe and/or coupler replacement

    Have a section of copper pipe I need to replace in my attic (very slow leak). Should I cut pipe behind existing coupler and replace from there and install a new coupler or reuse existing coupler and heat/remove damaged pipe only? Home built 1982. Thanks in advance!
  7. elvis80

    Coupler advice

    Hi I'm an enthusiastic DIY-er, but stuck on something. Hoping someone can help. I have a cold water manifold which has a 3/4" BSP male thread at one end and a 3/4" female thread at the other (presumably so you can daisy-chain them). I need to put it into a 20mm pex al pex cold ring in my house...
  8. J

    40mm piping - welded parts / coupler / compression question

    Newbie - elemental parts-ordering question here:, relating to the size i need to refer to / compatibility when ordering replacement pipe parts. For 40mm piping (under sink / washing machine arrangement) - see photo 1. For 40mm piping, when ordering welding couplers, welding bends and welding...
  9. D

    Leak from Water pipe coupler

    Hello all, I was fixing a stuck tap in my garden today, and after turning the isolator back on a coupler further along the pipe work started leak. The coupler has hex nut screw so I decided to try tightening it, that didn't work and more water started to come out. After isolating the water...
  10. M

    Problem soldering Yorkshire 22mm to 3/4 coupler

    Hi, Im trying unsuccessfully to solder a 22mm to 3/4 yorkshire straight adapter. Ive done a fair bit of soldering before without issues but its all been on 15mm pipe. With Yorkshire fittings im used to seeing a ring of older appear after about 15 seconds and then stop. However with this...
  11. T

    GHT to BSP thread coupler advice

    hi I bought an American hose kit with a 3/4 inch Male GHT thread. I have a 3/4 inch BSP female hose fitting. Is there any couplers that could be got and if so where can I find them. I have checked EBay, amazon and Screwfix. Maybe I am looking up the wrong names?? Any advice would be...
  12. E

    Pipe coupler issue - connecting two male fittings

    Hi there I'm trying to connect two male 15mm x 3/4 inch pipe connectors together. Can anyone advise the adapter I need and where to buy it from? The problem is shown below. Note: This issue occurred because I am trying to tee off from the kitchen cold water pipe to supply an outside tap...
  13. C

    Manual air vent made with 15mm x 1/2inch coupler and rad air vent

    Is it ok to do this? I have never soldered and auto vents are too large. Thanks Colin (Compression coupler)
  14. I

    Ways to prevent slip coupler slipping down a vertical copper pipe while soldering?

    Ideas please?
  15. jaydebruyne

    Plastic Stack Repair

    I've not done too much 4" work - as far as I can tell the boss goes into the socket above, then a short piece of pipe with a socket fits around the bottom which goes into another socket in the ground. I need to replace the boss and pipework underneath it going into the socket in the ground...
  16. M

    Old leaking coupler

    Hi there, Please be gentle no idea about plumbing, at the moment I have discovered a leak on what I think is called a coupler, seems to be dry everywhere accept coming down from the coupler in the picture shown. Its the left copper pipe, tried simple tighting it but doesnt seem to go any...
  17. R

    1/2 inch to 3/4 inch flexi

    Hi, Im installing a bath waste filler with side valves. However to connect the valves to the filler i need a flexi hose. Problem is the valve is 3/4 and the filler is 1/2. cant find one anywhere. on there instructions it says sorry 3/4 hose not included but as i say its 1/2 at the filler...
  18. N

    Dripping/Seaping Issue :(

    Hi Guys, I have a copper pipe going through a wall which (in short) T's off a water heater. There's about 2" through the wall, then I've joined a plastic 90deg coupler, and run plastic pipework from there. For some reason I am getting dripping where the copper pipe enters the...
  19. M

    Flexis on to iso valve or Male Coupler 15mm x ½"

    Hey when fitting a tap supplied with flexis with a 1/2 female end. Do people screw them on to a iso valve or a male coupler 15mm x 1/2. I have used iso valves in the past but hear your not meant to as it doesn't have a flat surface for the washer to sit on.
  20. R

    Alkathene mains

    Got a mains with knackered stopcock which has got another stopcock fitted after the knackered one and lots of other garbage. The whole lot needs to come out and be sorted before I can fit a new wall mounted WC. It was all hidden behind a back to wall wc covered by tiles for the last 30...
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