Specified against the duty
Every industry puts a different combination of pressure, temperature, vibration, media, and maintenance access onto an instrument connection. That combination decides the material and the seal, long before anyone picks a part number.
Six sectors, and what each asks of a connection

Oil & Gas
Wellhead, platform, and pipeline instrumentation, topside and sub-sea.
Tube fittings, DBB valves, monoflange
Explore industry
Petrochemical
Impulse lines and sampling systems on cracking and polymer units.
Manifolds, needle valves, tube fittings
Explore industry
Refining
Isolation and take-off points across crude, reforming, and treating.
DBB valves, ball valves, pipe fittings
Explore industry
Power Generation
Steam, feedwater, and turbine instrumentation on continuous duty.
Snubbers, high-pressure fittings, manifolds
Explore industry
Chemical Processing
Corrosive and high-purity media, batch and continuous alike.
316L, 6-Moly, and exotic alloy bodies
Explore industry
LNG & Industrial Gas
Cryogenic service down to -196 °C without loss of seal integrity.
Cryogenic-rated fittings and valves to -196 °C
Explore industry