Stainless steel is used also as a material for the fittings production, in particular threaded fittings. For example, stainless steel is optimal for the construction and assembly of low-pressure pipes.
The threaded fittings in stainless steel AISI 304 and 316 can be derived from:
- Pipes;
- Rods
Threaded fittings derived from pipes
The threaded fittings derived from pipe are mainly characterized by a male thread. The original material can be a pipe
- Electro-welded, optimal for low-pressures
- With no weld or perforated rod, optimal for high-pressures
Threaded fittings derived from rods
The stainless steel threaded fittings derived from rods, mechanical pipes or hexagons are mainly characterized from a female parallel pipe thread. This one is in accordance with:
- UNI 338, optimal for low-pressures
- NPT – American Standard Pipe Thread Paper, optimal for high-pressures.
Which are the main differences between these standards? The differences concern only grade and pitch, that is, the distance between the coils.
How to carry out the assembly?
The assembly of the stainless steel threaded fittings is carredi out uniting the male and female threads. Let your customers know that the threads mainly appear as parallel pipe (ISO 228/1) or taper pipe (ISO 7/1), with dimensions according to ISO 4144
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