CAD symbols piping & instrumentation

Valves

Gate valve NC (horizontal)
Gate valve NC (vertical)
Gate valve NC (horizontal)
Gate valve NC (vertical)
Gate valve NO (horizontal)
Gate valve NO (vertical)
Gate valve NO (horizontal)
Gate valve NO (vertical)
Manual valve (horizontal)
Manual valve (vertical)
Manual valve (horizontal)
Manual valve (vertical)
Safety valve (horizontal)
Safety valve (vertical)
Globe valve NC (horizontal)
Globe valve NC (vertical)
Globe valve NO (horizontal)
Globe valve NO (vertical)
Control valve (horizontal)
Control valve (vertical)
Angle valve (left)
Angle valve (right)
Angle ball valve (left)
Angle ball valve (right)
Angle globe valve (left)
Angle globe valve (right)
Angle safety valve (left)
Angle safety valve (right)
Angle spring safety valve (left)
Angle spring safety valve (right)
3-way ball valve
3-way globe valve
3-way valve
4-way valve
Needle valve (horizontal)
Needle valve (vertical)
Needle valve (horizontal)
Needle valve (vertical)
Ball valve NC (horizontal)
Ball valve NC (vertical)
Ball valve NO (horizontal)
Ball valve NO (vertical)
Plug valve NC (horizontal)
Plug valve NC (vertical)
Plug valve NO (horizontal)
Plug valve NO (vertical)
Pinch valve (horizontal)
Pinch valve (vertical)
Hydraulic valve (up)
Hydraulic valve (left)
Hydraulic valve (right)
Pilot gate valve (up)
Pilot gate valve (left)
Pilot gate valve (right)
Pilot operated safety valve (left)
Pilot operated safety valve (right)
Handwheel valve (horizontal)
Handwheel valve (vertical)
Handwheel valve (up)
Pneumatic shut-off valve
Piston operated valve
Diaphragm valve
Back pressure regulating valve
Back pressure regulator with external tap
Buckling pin relief valve (left)
Buckling pin relief valve (right)
Motor operated valve (up)
Motor operated valve (left)
Motor operated valve (right)
Pressure Vacuum Relief Valve (left)
Pressure Vacuum Relief Valve (right)
Pressure relief valve (left)
Pressure relief valve (right)
Vacuum relief valve (left)
Vacuum relief valve (right)
Pressure reducing regulator
Pressure regulator with external tap
Temperature regulator valve
Lift type check valve (horizontal)
Lift type check valve (vertical)
Solenoid valve (up)
Solenoid valve (left)
Solenoid valve (right)
Solenoid valve + reset (up)
Solenoid valve + reset (left)
Solenoid valve + reset (right)
Electrohydraulic valve (up)
Electrohydraulic valve (left)
Electrohydraulic valve (right)
Magnetic flow meter (horizontal)
Magnetic flow meter (vertical)
Check valve (horizontal)
Check valve (vertical)
Check valve (horizontal)
Check valve (vertical)
Stop check valve (up)
Stop check valve (left)
Stop check valve (right)
Breather valve (horizontal)
Breather valve (vertical)
Swing check valve (horizontal)
Swing check valve (vertical)
Butterfly valve (horizontal)
Butterfly valve (vertical)
Butterfly valve (horizontal)
Butterfly valve (vertical)
Concentric reducer (horizontal)
Concentric reducer (vertical)
Excess flow valve (horizontal)
Excess flow valve (vertical)
Pressure difference reducer
Diverting valve (horizontal)
Diverting valve (vertical)
Generic rotary valve (horizontal)
Generic rotary valve (vertical)
Pressure rupture disc (horizontal)
Pressure rupture disc (vertical)
Y type strainer (horizontal)
Y type strainer (vertical)

Vessels

Centrifuge with solid shell
Centrifuge with perforated shell
Disk-type centrifuge
Centrifuge general
Pusher type centrifuge
Screw-type centrifuge
Screw centrifuge, perforated shell
Bag
Storage barrel drum
Storage container
Gas cylinder
Cone-Roof Tank
Dome roof tank
Double-wall tank
Tank - External Floating Roof
Tank - floating roof
Tank - General Basin
Tank - Internal Floating Roof
Tank - spherical storage
Vessel - spherical
Vessel - Conical head
Vessel - convex bottom
Vessel - general
Vessel - solid content
Vessel - general (column)
Vessel - liquid content
Vessel - trays
Vessel - internal trayed
Vessel jacketed
Vessel jacketed, 1Z
Vessel jacketed, 2Z
Vessel jacketed, 3Z

Heat exchangers

Heat exchanger (general)
Heat exchanger (general)
Heat exchanger (plate and frame)
Heat exchanger (general cooling tower)
Heat exchanger (heating, cooling)
Heat exchanger (burner)
Heat exchanger - double pipe
Heat exchanger - film evaporator
Heat exchanger - air cooled
Heat exchanger - double pipe
Heat exchanger - finned tube
Heat exchanger (FHT)
Heat exchanger - plate type
Heat exchanger - shell and tube
Heat exchanger - shell and tube (U-Type)
Heat exchanger - spiral
Heat exchanger - spiral
Heat exchanger - spray cooling
Heat exchanger (FHT)
Wymiennik ciepła - wężownica rurowa
U-Tube Heat Exchanger
Heat exchanger TEMA-AEL
Heat exchanger TEMA-AEM
Heat exchanger TEMA-BEM
Heat exchanger TEMA-BEU
Heat exchanger TEMA-BKU
Heat exchanger TEMA-NEN

Instruments and functions

Primary Accessible DI
Field Discrete DI
Aux Accessible DI
Inaccessible DI
Aux Inaccessible DI
Primary Accessible DCS
Field Discrete DCS
Aux Accessible DCS
Inaccessible DCS
Aux Inaccessible DCS
Primary Accessible PLC
Field Discrete PLC
Aux Accessible PLC
Inaccessible PLC
Aux Inaccessible PLC
Aux Inaccessible PLC
Field Discrete PLC
Aux Accessible PLC
Inaccessible PLC
Aux Inaccessible PLC
Function - Summing
Function - Average
Function - Difference
Function - Booster
Function - High limit
Function - Low limit
Function - Rate of change
Function - Bias
Function - Divide
Function - High select
Function - Low select
Function - multiply
Function - integrate
Function - exponential
Function - velocity limiter
Function - negative gain
Function - proportional
Function - unspecified
Function - Time
Function - Square root
Function - Convert