What is a sweat connector?

Soldered fittings, also called “sweat fittings,” are used to join copper pipes such as those commonly encountered in some in-wall tub and shower applications. The heat draws the solder into the gap between the fitting and pipe to form a water tight seal.

What is a straight coupling?

Straight coupler to connect two pipes together, end to end. This slip-on pipe fitting is designed for use with standard 1-1/2″ pipe (aluminum or steel).

Why is soldering called sweating?

The most common way of joining copper pipe is by soldering (it’s called ‘sweating’ mostly in the U.S., probably because the pipe ‘sweats’ as it heats up). Flux is used to prevent oxidation in the copper when the heat is applied, and to ‘wet’ the metal, allowing the liquid solder to flow more easily into the joint.

Can you sweat a threaded pipe?

Learn how to join copper pipe with a soldered sweat fitting. Connections are made between sections of iron pipe using threaded fittings. There’s no particular magic required to solder a sweat fitting, though the very presence of a propane torch makes it a procedure that must be done carefully.

Does sweat mean solder?

“Sweating” and “soldering” are synonymous terms used to describe the process of using heat and solder to join copper pipe and fittings to one another. You can tell your neighbor you’re heading downstairs to “solder” a joint—but “sweating” makes you sound much more worldly and DIY hip.

What’s the best flux for plumbing?

You may find two or three kinds of flux on the shelf. We recommend tinning flux. It contains a bit of powdered metal alloy that is similar to solder. The alloy melts and coats the inside of the joint and helps ensure a solder joint that’s completely filled and leakproof.

What’s the best way to heat a coupling?

Open Flame Heating is typically not recommended. When heating the hub with an oxyacetylene torch, or blow torch, use an excess acetylene mixture. Mark the hub body at the top, center, and bottom along the length of the hub with heat resistant crayons, one with a 350º F (177º C) melt temperature and another with a 450º F (232º C) melt temperature.

How much interference does a coupling hub need?

A key that is too high in the keyway also could cause the coupling hub to fracture. Steel coupling hubs require an increase of 160 F degrees (90 C) for every mil (0.001 in or 0.025 mm) of interference divided by the hub inside diameter.

What’s the best way to repair a slip coupling?

Holding your torch up near the point where the coupling and pipe are fitted together, warm up the pipe. Hold your solder up to the point where you had the torch and touch the solder to the intersection of coupling and pipe. It should instantly melt and wrap around the pipe sealing it.

What to know about sweating copper pipe joints?

Everyone in the business who has spent any time as a tech has spent countless hours sweating copper joints. Here, from start to finish, are a few ways to ensure you get good results when sweating a pipe joint. (NOTE: We would hope it goes without saying to always use “lead-free” solders and fluxes when dealing with systems that carry potable water.

How is external coupling related to control coupling?

External coupling occurs when two modules share an externally imposed data format, communication protocol, or device interface. This is basically related to the communication to external tools and devices. Control coupling is one module controlling the flow of another, by passing it information on what to do (e.g., passing a what-to-do flag).

What is the relationship between coupling and cohesion?

Coupling is usually contrasted with cohesion. Low coupling often correlates with high cohesion, and vice versa. Low coupling is often a sign of a well-structured computer system and a good design, and when combined with high cohesion, supports the general goals of high readability and maintainability. 1 History.

What is a sweat connector?