Pipe Gauges | McMaster-Carr

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For Use With

Alcohol

Alcohol-Based Solvents

Thread Type

UN/UNF (SAE Straight)

Connection Location

System of Measurement

Pipe Size

Dial Diameter

Dial Type

Pressure Numeric Increments

Maximum Pressure

1,000 psi to 1,999.9 psi

2,000 psi to 9,999.9 psi

10,000 psi to 19,999.9 psi

20,000 psi or greater

Less than 10,000 kPa

10,000 kPa to 19,999 kPa

20,000 kPa to 29,999 kPa

30,000 kPa to 99,999 kPa

100,000 kPa or greater

Measurement Unit

Centimeters of Mercury

Cubic Centimeters

Cubic Feet

Cubic Meters per Hour

Cubic Meters per Minute

Scale Type

Measures

Differential Pressure

Graduations

Case Material

Display Type

Maximum Continuous Pressure

Gender

Fitting Connection

Connection Material

Connects To

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Mounting Location

For Use On

10,278 Products

Fluid Handling

Pressure Gauges

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

281 products

Pressure and Vacuum Gauges

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

42 products

Vacuum Gauges

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

106 products

Pressure Test Gauges

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

60 products

Differential Pressure Gauges

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

18 products

Differential Pressure and Vacuum Gauges

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

2 products

Gauge Siphon Tubes

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

36 products

Pressure and Vacuum Transmitters

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

95 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

357 products

Differential Pressure Transmitters

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

47 products

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

8 products

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

14 products

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

3 products

Flowmeters

Measure the flow rate of a liquid or gas

1,000 products

Liquid-Level Gauges

Monitor fluid levels in containers

527 products

Sights

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

172 products

Flow Transmitters

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

70 products

Flow Sights

Visually confirm flow and inspect liquid color and clarity

144 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

10 products

Thermowells

Prevent damage to thermometers and temperature probes in pressurized tanks and pipelines

115 products

Temperature and Humidity Transmitters

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

1 product

Thermocouples

Measure and transmit liquid, gas, and surface temperature

169 products

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

10 products

RTDs

Measure and transmit liquid, gas, and surface temperature more precisely than thermocouples

41 products

Thermocouple and RTD Protection Tubes

Shield thermocouple and RTD probes in large, unpressurized tanks

16 products

Noncontact Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach materials without touching them

7 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

14 products

Flow Switches

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

165 products

Vacuum Pumps

Create suction force to move objects, draw liquids and gases, or generate flow

2 products

Measuring and Inspecting

Thread Size Identifiers

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

9 products

Plug Gauges

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

65 products

Ring Gauges

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

84 products

Tape Measures

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

1 product

Pipe Size Measuring Kits

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

4 products

Pipe Size Chart/Rulers

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

3 products

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

9 products

Outside Micrometers

Apply even pressure to objects to measure thickness more precisely than thickness gauges

17 products

Thermometers

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

249 products

Humidity-Indicating Plugs

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

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

1 product

Calibration Columns

Calibrate the flow rate of metering pumps

14 products

Weather Stations

Measure multiple weather conditions at the same time

2 products

Data Recorders

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

25 products

Power Transmission

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

224 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

11 products

Compressed Air Filter/Regulator/Lubricators

Deliver clean, lubricated air at the desired pressure to a component in your line

4 products

Lubricating

Oil Dispenser Guns

Pair with container-mount dispensers to control the flow of oil

4 products

Heating, Ventilation, and Air Conditioning

HVAC Switches

Control and monitor airflow in HVAC systems automatically

2 products