Engineering Stack Exchange
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Questions tagged [connections]

25 questions
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Part to pierce the valve on a 16g CO2 cartridge and connect to a Solenoid valve

The specific part that I’m after is something that can connect to a solenoid valve and a CO2 cartridge that will break the seal on the end of the CO2 cartridge. The solenoid valve connection is roughly 1/2”/12mm (female, threaded) which is just…
Oliver Nicholls
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What is the name used for this type of connectors?

I am trying to identify the following connector used in an outdoor lighting product. Dimensions are length of 30mm and diameter of approximately 8 mm. I have done several google searches without much success. Does anyone in this forum have…
Nil_2018
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What is the standard connector on reusable whip cream dispensers?

The male connection on a reusable whip cream dispenser cannister where charger cartridges are placed appears to be a standard size, as caps that are used to push and hold the charger cartridge are sold individually and work with any brand whip cream…
Tom Edwards
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Design of pinned joint to Eurocode

Above picture is from Eurocode 3: design of steel connections. It gives geometrical requirements for a pin ended member. Looking at situation A, we have the minimum distance $c$ from the edge of the hole to the edge of the connection. I wonder…
S. Rotos
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What are the charge/power connector of restaurant order pagers / buzzers called?

They look like snap buttons and used for stacking pagers for charging. Closest things I can find are socket screws and cap nuts.
Chris Gunawardena
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Detachable tubing connections (joints) for frame assembly

I am looking into fabricating a steel tubing frame that needs to be dis/assembled (applies to many larger furniture like bed, shelving unit, wardrobe, cupboard, cabinet, ...). What are the variants of the steel equivalent of a butt-joint and their…
handle
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How do I to connect aluminium profiles with 60 and 120 degree angles?

I would like to construct an aluminium profile frame which includes connections with stiff fixed angles at 60 and 120 degrees. What options do exist for creating those connections, preferably without having to further process the profiles…
Thomas Luzat
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Can pinned support / pin joint transfer moments in 3D?

What's an authoritative definition of whether the idealized pinned support and pin joint can transfer moments in 3D? Most sources say both of them cannot transfer moments but are apparently only considering 2D. A real pin joint obviously can…
user1318499
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Is there a male and female valve that is closed until connected together?

I'm trying to make a quick release male and female connector similar to the one shown here. One connector is attached to the bottom of a container filled with liquid. When it is not connected it is closed and none of the liquid can flow out of it.…
user2570937
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How to create an airtight connection between Stainless Steel and PTFE?

I have these two parts shown below, the bottom cylindrical part is stainless steel, the rectangular upper piece is PTFE (Teflon). The SS prongs from the lower part need to insert into the holes of the PTFE part. I'd like to create an airtight…
Sam W
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I have an unidentified press-fit nut that I need to reproduce, can anyone tell me how to find this?

I received these fittings as part of a package, but now we need more of them. Can anyone identify this assembly, or even better help me learn how to recreate it? My coworkers and I are stumped. Pictures: https://imgur.com/a/1sq4lOK Thanks!
Vince
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Do nylon and rubber bushes usually come in sizes between steel pipe sizes?

I'm in Cambodia where I don't speak the lingo and I'm hoping to do a little DIY project. If I were to buy two different off the shelf steel tubes am I right in thinking that the most common nylon and rubber bush sizes are always between these common…
joe
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Isn't a pin support supposed to prevent translation both horizontally and vertically?

I know that pins prevent horizontal and vertical translation and that rollers prevent only the vertical one. Therefore, what I do not understand here is that while the support at B reacts with two forces C support has only one, even though both…
Elruz Rahimli
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Designing a pin connection

I am designing a pipe strut connected to a UB waler using a 100mm diameter pin through a series of 8 interlocking plates. Each plate is about 40mm thick. To be able to weld the plates to the waler and strut end, I need to leave sufficient space…
Leedon
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Connection for beam very close to concrete wall

The following picture is pretty self-explanatory. I need a connection for a beam that is coming in very close to a concrete wall edge (north/south beam in picture). The embedded plate with nelson studs in already in place. I was thinking a T type…
user2817017
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