Describe a process and get a publication-ready piping and instrumentation diagram in seconds, complete with ISA instrument bubbles, control loops, pipe labels, and equipment tags. No CAD software required.
Browse P&ID diagrams made with Figviz, or generate your own above
A foundational P&ID with a centrifugal pump, storage tank, isolation valves, and a flow control loop.
Shell-and-tube heat exchanger P&ID with a temperature transmitter, temperature controller, and bypass control valve.
Distillation column P&ID including reboiler, overhead condenser, reflux drum, and multiple control loops.
A detailed P&ID focused on instrument bubble notation, signal line types, and a cascade control strategy.
Water treatment P&ID covering coagulation, filtration, and chlorine dosing with flow and level instrumentation.
A reference-style P&ID with annotated ISA symbols for valves, transmitters, controllers, and piping.
Start with one of these examples, then adapt the subject, labels, data, or layout for your own use.
A foundational P&ID with a centrifugal pump, storage tank, isolation valves, and a flow control loop.
Create a clear P&ID diagram of a centrifugal pump P-101 drawing from a feed tank TK-101 through a gate valve. Discharge goes through a check valve to a process line with a flow transmitter FT-101 and flow control valve FV-101. Include ISA instrument bubbles and tag labels. White background.
Shell-and-tube heat exchanger P&ID with a temperature transmitter, temperature controller, and bypass control valve.
Create a P&ID diagram of a shell-and-tube heat exchanger HE-201 with hot process fluid on the shell side and cooling water on the tube side. Include a temperature transmitter TT-201, temperature controller TC-201, and a control valve TV-201 on the cooling water line. Show bypass piping with manual valves. White background.
Distillation column P&ID including reboiler, overhead condenser, reflux drum, and multiple control loops.
Create a P&ID diagram of a distillation column C-301 with a kettle reboiler RB-301 at the bottom and an overhead condenser CD-301 feeding a reflux drum V-301. Include level controllers LC-301 and LC-302, pressure controller PC-301, and reflux flow control FV-301. Standard ISA symbols. White background.
A detailed P&ID focused on instrument bubble notation, signal line types, and a cascade control strategy.
Create a P&ID diagram illustrating a cascade control strategy: a primary pressure controller PC-401 sending a set point to a secondary flow controller FC-401 which throttles a control valve FV-401. Show ISA instrument bubbles for each transmitter and controller, dashed signal lines, and clear tag numbers. White background.
A P&ID diagram maker is a tool that lets you create piping and instrumentation diagrams without drafting software. A P&ID (piping and instrumentation diagram) is an engineering drawing that shows the physical sequence of equipment, pipes, and instrumentation in a process plant, along with the control loops that govern how the plant operates. Figviz generates these diagrams from a plain-language description, placing ISA-standard instrument bubbles, valve symbols, and pipe connections automatically so engineers, students, and process designers can produce clear P&IDs in seconds.
Always assign a tag number to each piece of equipment and instrument before generating, as consistent numbering produces a diagram that reads like a real engineering document. List the control strategy explicitly, for example "FC-201 reads FT-201 and throttles FV-201," so the AI places the correct signal lines. For complex systems, generate individual sections (feed section, reaction section, separation section) and combine them. Use the Classic style for formal engineering reviews and Colorful for presentations or training materials. After downloading, verify that all instrument bubbles show the correct letter codes and that no pipe connections are missing before sharing with colleagues.
Create a free account and get starter credits to generate your own. No credit card required.