Fitting Gauges | McMaster-Carr

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System of Measurement

Pipe Size

For Use With

Alcohol-Based Solvents

Liquids with Solids

Pharmaceuticals

Thread Type

UN/UNF (SAE Straight)

Connection Location

Display Type

Gender

Measurement Unit

Centimeters of Mercury

Cubic Centimeters

Inches of Mercury

Inches of Water

Kilograms per Square Centimeter

Dial Diameter

REACH

Fitting Connection

Push to Connect

Quick Disconnect

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Connects To

Measures

Concave Corners

Corner-Weld Leg Length

Differential Pressure

Differential Vacuum

Excess Weld Metal

Go/No-Go Fit-Up Gap

Pipe Wall Thickness

Relative Humidity

Maximum Pressure, psi

Graduations

Dial Type

Scale Type

Lens Material

Polyurethane Rubber

Connection Material

Stainless Steel

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 499° F

500° F or greater

Less than 75° C

75° C to 99° C

100° C to 149° C

150° C to 199° C

200° C or greater

Case Material

Stainless Steel

Maximum Flow

Mounting Position

How can we improve?

10,411 Products

Measuring and Inspecting

Thread Size Identifiers

Thread Size Identifiers

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

Angle Identifiers

Angle Identifiers

Place the edges against fittings, dies, and other objects to quickly verify angles up to 45°

Pipe Size Chart/Rulers

Pipe Size Chart/Rulers

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

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

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

Ring Gauge Holders

Ring Gauge Holders

Keep ring gauges still to measure cylindrical parts or threads quickly and repeatedly

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

Chamfer Gauges

Check the diameter of chamfered edges to make sure they're within tolerance

Calibration Columns

Calibration Columns

Calibrate the flow rate of metering pumps

Thermometers

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

Contour Gauges

Transfer contours, patterns, and shapes for jobs such as installing floor tile and pipe insulation

Humidity-Indicating Plugs

Humidity-Indicating Plugs

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

Fluid Handling

Pressure Gauges

Pressure Gauges

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

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

Pressure and Vacuum Transmitters

Pressure and Vacuum Transmitters

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

Vacuum Transmitters

Vacuum Transmitters

Transfer vacuum measurements 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

Pressure Test Gauges

Pressure Test Gauges

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

Vacuum Gauges

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

Pressure Indicators

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

Pressure and Vacuum Gauges

Pressure and Vacuum Gauges

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

Differential Pressure Gauges

Differential Pressure Gauges

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

Differential Pressure Transmitters

Differential Pressure Transmitters

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

Sights

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

Flowmeters

Measure the flow rate of a liquid or gas

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

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 Transmitters

Flow Transmitters

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

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Temperature and Humidity Transmitters

Temperature and Humidity Transmitters

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

Thermocouples

Measure and transmit liquid, gas, and surface temperature

Flow Switches

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

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