IP Ratings for Pressure Transmitters: How to Specify
How to spec the right IP rating for a pressure transmitter: the two digits, the IP68 depth caveat, IP-vs-NEMA crosswalk, IP69K washdown, and where water gets in.
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Pressure Transmitter Types: Reference, Sensing, Output and Certification
Pressure transmitter types is four axes: reference, sensing, output, certification. 12 worked examples and a 6-step selection workflow.
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NPT vs BSP/G Thread: Pressure Connection Selection Guide
NPT (60° tapered, ASME B1.20.1) and G/BSPP (55° parallel, ISO 228-1) are not interchangeable. Standards reference, size equivalence, and 3-step thread ID.
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Pressure Switch Symbol Guide: Electrical Schematics, P&ID & Pneumatic Standards
Decode the pressure switch symbol on any drawing — NEMA / IEC electrical schematics, ISA-5.1 P&ID (PSH, PSL, PDS), and ISO 1219 pneumatic blocks.
