How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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About Pipe Size
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About Pressure Gauges
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Pressure Gauges
These are the most commonly used pressure gauges. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.
- For Use With: Water
- Accuracy: ±2% Mid Scale (Grade B)
Available Pressure Ranges | |||||
|---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
| psi | kPa | psi | kPa | psi | kPa |
| 0 to 300 | 0 to 2,100 | 10 | 50 | 50 | 300 |
Top Connection | |||||||
|---|---|---|---|---|---|---|---|
| Dial Diameter | Hose Size | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Mounting Orientation | Each | |
GHT Female | |||||||
| 2 1/2" | 3/4 | -40° to 160° | -40° to 160° | Black | Any | 0000000 | 000000 |
Drinking Water Pressure Gauges
Check the pressure on your drinking water system with these gauges—they meet NSF/ANSI Standard 61 for safe use with potable water. The dry dial on these gauges is best for low-vibration applications, since the needle can bounce if the gauge is shaken. For more accurate readings under heavy vibration, use a liquid-filled gauge. Mount gauges with the dial face upright.
- For Use With: Water
- Accuracy: ±2% Mid Scale (Grade B)
Available Pressure Ranges | |||||
|---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
| psi | kPa | psi | kPa | psi | kPa |
| 0 to 160 | 0 to 1,100 | 2 | 20 | 20 | 200 |
Top Connection | |||||||
|---|---|---|---|---|---|---|---|
| Dial Dia. | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Environment | Mounting Orientation | Each | |
GHT Female | |||||||
| 2 1/2" | 3/4 | -40° to 150° | -40° to 150° | Food Industry | Upright | 0000000 | 000000 |
Metal Cam-and-Groove Hose Couplings for Chemicals and Petroleum
Made of metal, these couplings have better durability than plastic cam-and-groove couplings. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug. Couplings are compatible with Andrews, Dixon, Ever-Tite, and PT cam-and-groove couplings.
Aluminum fittings are lighter in weight than 316 stainless steel fittings. They have good corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.
- For Use With: Diesel Fuel, Gasoline, Hydraulic Fluid
- Maximum Pressure: 75 psi @ 72° F
- Temperature Range: -40° to 200° F
API valve-to-plug adapters are used to offload tankers with an API valve.
Adapters with a sight glass let you inspect the fluid in your line.
- For Use With: Diesel Fuel, Gasoline, Hydraulic Fluid
- Maximum Pressure: 75 psi @ 72° F
- Temperature Range: -40° to 200° F
API valve-to-plug adapters are used to offload tankers with an API valve.
Adapters with a sight glass let you inspect the fluid in your line.