Can a M20X1.5 pressure gauge be connected to 1/2NPT?
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The pressure gauge selected features M20X1.5 thread connections; can a 1/2 NPT pressure gauge straight-through fitting be connected to it?
No, M20X1.5 features a straight thread connection, while 1/2 NPT has a tapered thread.
How can they be connected? These are interfaces based on two different standards. NPT is the abbreviation for National (American) Pipe Thread; it represents the 60-degree tapered pipe thread standard used in the United States. **For the relevant standards, refer to GB/T12716-1991: Thread type M20x1.5, with an outer thread diameter of 20 millimeters and a pitch of 1.5 millimeters. There are many posts on the forum providing introductions to threads.
Connecting it directly definitely won’t work; we can find a way to add an adapter
Yes, it’s called welding; TIG welding. Remember to use stainless steel welding wire. After welding, it’s best to take X-rays.
The title doesn’t mention maintenance in the future; it only asks whether it can be connected
It cannot be connected; these are interfaces with two different standards.
Imported equipment is equipped with 1/2 NPT tapered-thread pressure gauges, which cannot be interchanged with the M20X1.5 pressure gauges used domestically. Our factory manufactures 1/2 NPT-M20X1.5 adapters, which facilitate the use of M20X1.5 pressure gauges across all devices.
It cannot be connected; different interface standards
No, it’s best to replace the pressure gauge connector, or add an adapter.
Different interface standards require conversion adapters. ,