Are there metric compression fittings?
Metric compression fittings are available in steel, stainless steel, and brass, depending upon the tubing material that is being used.
How much pressure is a brass compression fitting good for?
Maximum working pressure is 400 psi. Nominal working pressure is 200 psi. -65˚ to +250˚F. used with all part numbers to designate tube and pipe fractional sizes.
Are there metric pipe fittings?
Metric adapters may include both a male end and a female end, two male ends, or two female ends. Regardless of the combination, you can expect one end to feature a standard thread and the other end to feature a metric thread. This allows you to connect pipes with standard threads to pipes with metric threads.
Are NPT and compression fittings the same?
NPT (ends) look very different than compression (ends). NPT has no nuts or ferrules, but instead relies entirely on a thread connection. Like plastic tubing, the product designation for NPT (and pipe in general) is the internal diameter (ID), not tubing OD like compression.
Are copper compression fittings reliable?
Although compression fittings are generally considered more reliable than threaded fittings, there are some potential problems. In general, compression fittings are not as resistant to vibration as soldered or welded fittings. Repeated bending may cause the ferrule to lose its grip on the tube.
What is the most common cause of leaking compression fittings?
It is critical to avoid over-tightening the nut or else the integrity of the compression fitting will be compromised by the excessive force. If the nut is overtightened the ferrule will deform improperly causing the joint to fail. Indeed, overtightening is the most common cause of leaks in compression fittings.
Can compression fittings fail?
Failure can usually be attributed to one or a combination of the following common compression fitting problems. 1. The installation has been completed using materials from different manufactures. 2.
How do you identify metric pipe threads?
For Metric parallel threads, taking a caliper reading of the threads outer diameter in millimetres (mm) will give a reading of the exact thread size but not the thread pitch. For example, a caliper reading of 12.03mm indicates it is very likely a 12mm thread.
What thread is 1/2 compression fitting?
1/2″ Compression Fitting by 1/2″ Female NPT Thread. 1/2″ Compression Fitting by 1/4″ Male Elbow.
Will brass compression fittings work on stainless steel?
It is important to bear in mind that brass compression fittings are better suited to use with copper tubing, and that stainless steel fittings are used for stainless steel tubing. If you do try to use a brass fitting with stainless steel tubing, you will struggle to obtain a proper seal.
How to measure brass pipe fittings?
just measure the outside diameter (od) or inside diameter (id), as illustrated in the picture above. – The OD measurement for a male connection should be taken near the base of the threads, farthest from the end of the part.
Do you use metric pipe fittings?
Use to convey air, water, oil, steam, hydraulic fluid, and natural gas. Plastic pipe and pipe fittings are lighter in weight than metal pipe and pipe fittings. They are typically for low- to medium-pressure applications up to 1, 000 psi.
Is there a metric Pipe Thread Standard?
Pipe Threads. These metric pipe thread sizes have been adopted by the ISO (International Standards Organization), and are primarily intended for pipes or tubes for screwing together or into ISO pipe ports on valves, cylinders, pumps, and other components. An appropriate thread sealant can be used, if necessary, to ensure pressure-tight joints.
Are brass ferrules used for SS compression or only copper?
So that implies brass ferrules are the right material to use with copper tubing. If galvanic corrosion is not an issue, you can use a stainless fitting body and nut with copper tubing, as long as the ferrules are brass.