Pipe Gauges | McMaster-Carr

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9,585 Products

Fluid Handling

Pressure Gauges

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

Vacuum Gauges

Take vacuum readings in pumps, packaging equipment, and suction lines

Pressure Test Gauges

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

Differential Pressure Gauges

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

Pressure and Vacuum Transmitters

Pressure and Vacuum Transmitters

Convert pressure and vacuum measurements into a signal sent to remote displays and controllers

Differential Pressure and Vacuum Gauges

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

Gauge Siphon Tubes

Gauge Siphon Tubes

Fill with water to protect dry gauges from steam and high-temperature liquids; also called pigtails

Pressure Transmitters

Pressure Transmitters

Send pressure readings to controllers and remote displays

Vacuum Test Gauges

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

Vacuum Transmitters

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

Differential Pressure Transmitters

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

Pressure Indicators

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

Flowmeters

Measure the flow rate of a liquid or gas

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

Sights

Observe and monitor the contents of pipes, tanks, and other containers

Flow Transmitters

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

Flow Sights

Visually confirm flow and inspect liquid color and clarity

Liquid-Level Transmitters

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

Flow Switches

Turn equipment on or off when flow rate reaches a set point

Temperature and Humidity Transmitters

Temperature and Humidity Transmitters

Regulate heating and cooling by sending temperature and humidity levels to PLCs and controllers

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Measuring and Inspecting

Thread Size Identifiers

Thread Size Identifiers

Confirm your fastener's thread size, pitch, or threads per inch

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

Ring Gauges

Confirm your workpiece's outer diameter or external threads are within tolerance

Tape Measures

Standard, long, center-finding, and flexible tape measures

Pipe Size Measuring Kits

Pipe Size Measuring Kits

Connect to pipe and fittings to determine their size without additional measuring tools

Pipe Size Chart/Rulers

Pipe Size Chart/Rulers

Curl around pipe to gauge its size, measure its diameter, or mark lines

Thermometers

Monitor temperature in tanks, pipes, control panels, and other equipment

Humidity-Indicating Plugs

Humidity-Indicating Plugs

Monitor humidity in sealed containers without opening them, protecting the inside from contamination

Calibration Columns

Calibration Columns

Calibrate the flow rate of metering pumps

Weather Stations

Weather Stations

Measure multiple weather conditions at the same time

Data Recorders

Log temperature, humidity, or pressure levels to track changes and troubleshoot your system

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)