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About Pressure Gauges
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About Vacuum Pumps
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Digital Pressure and Vacuum Gauges
Plastic Case With
Bottom Connection
A four-digit LCD display allows for easy reading of measurements. The LCD shuts off after an hour to extend battery life. Also known as compound gauges, these measure both pressure and vacuum. Use them with pumps, filters, regulators, compressors, and in suction and process lines.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air
- Accuracy: ±0.5% Full Scale (Not Graded)
| Pressure Range, psi | Vacuum Range, in. of Hg |
| 0 to 25 | 29.9 to 0 |
Gauges with Bottom Connection | 9V Alkaline Disposable Battery | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Dp. | Pipe Size  | Resolution, psi | Environment Temp. Range, °F | Process Temp. Range, °F | Case Color | Digit Ht. | Batteries Included | Battery Size | No. of Batteries Required | Each | Pkg. Qty. | Pkg. | ||
NPT Female | ||||||||||||||||
| 2 11/16" | 4 1/16" | 1 7/8" | 1/8 | 0.1 | -40° to 150° | 35° to 130° | Gray | 3/16" | No | 9V | 1 | 000000 | 0000000 | 1 | 00000000 | 00000 |
Digital High-Accuracy Pressure Gauges
Plastic Case With
Bottom Connection
A four-digit LCD display allows for easy reading of measurements. The LCD shuts off automatically to extend battery life. Gauges are commonly used with pneumatic regulators, compressors, and in critical processes that require high accuracy, such as hydraulic and laboratory applications.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air
- Accuracy: ±0.5% Full Scale (Not Graded)
Available Pressure Ranges | ||||
|---|---|---|---|---|
| psi | atm | bar | kg/cm2 | Resolution, psi |
| 0 to 100 | 0 to 6.8 | 0 to 6.8 | 0 to 7 | 0.1 |
| 0 to 1,000 | 0 to 68 | 0 to 68.9 | 0 to 70.3 | 1 |
Gauge with Bottom Connection | 9V Alkaline Disposable Battery | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Dp. | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Batteries Included | Battery Size | Number of Batteries Required | Mounting Orientation | Features | Each | Pkg. Qty. | Pkg. | ||
NPT Female | |||||||||||||||
| 4 1/16" | 2 11/16" | 1 7/8" | 1/8 | -40° to 150° | 35° to 130° | No | 9V | 1 | Any | 1-hr. Automatic Shut-Off | 00000000 | 0000000 | 1 | 00000000 | 00000 |
Hand-Held High-Vacuum Gauges
Check the vacuum levels in high-vacuum pumps, valves, and chambers with this compact gauge. Use a ring and clamp (both sold separately) to connect them to another quick-clamp high-vacuum fitting, also known as KF, QF, and NW fittings. The digital display shows measurements in torr, mbar (millibar) and hPa (hectopascal).
- For Use With: Air
- Accuracy: ±10% @ 7.5 to 1.5 × 10 -4 torr, ±30% @ 75 to 22.5 torr
Vacuum Range | ||
|---|---|---|
| Torr | mbar | hPa |
| 750 to 3.7 × 10 -4 | 1000 to 5 × 10 -4 | 1000 to 5 × 10 -4 |
Gauges with Center Back Connection | Clamps | Rings | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High-Vacuum Flange Size | Wd. | Ht. | Dp. | Environment Temp. Range, °F | Process Temp. Range, °F | For Tube OD | Flange OD | Number of Batteries Included | Each | Each | Each | |||
Quick Clamp Tube Connection | ||||||||||||||
| 16 | 2 3/8" | 4 3/4" | 1" | 40° to 100° | 0° to 140° F | 3/4" | 1.18" | 1 | 000000 | 000000000 | 00000000 | 00000 | 00000000 | 00000 |
Electric Ultra-High-Vacuum Pumps
Achieve vacuum levels up to 1 x 10 -12 torr with these ultra-high-vacuum pumps. Each unit includes two pumps—a diaphragm pump and a turbomolecular pump—that work together to create extremely high levels of vacuum in your chamber. The turbomolecular pump meets IP54 for protection in damp and dusty environments. Units are compact, so they fit on top of a workbench or table.
Pumps are ready to use as soon as they’re plugged in and connected to a chamber. Since they don’t use oil, they won’t introduce contaminants into your system. They hardly vibrate, minimizing interference with sensitive instruments and measurement devices.
Pumps with claw-clamp intake connections require a ring and four double-claw clamps (all sold separately) to connect to other components. Claw-clamp connections are also known as ISO-K fittings. These pumps include a gauge with quick-clamp connections, which requires a quick clamp and a ring (both sold separately) to connect. Quick-clamp connections are also known as KF fittings.
Pumps with flanged intake connections and the included gauge each require a gasket (sold separately) to connect to your chamber. Flanged connections are also known as CF fittings.
Intake Connection | Gauge Port Connection | Discharge Connection (BSPP Threads) | O'all | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Vacuum | Max. Flow Rate, cfm | Volume, dBA | Current, A | For Tube OD | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | For Tube OD | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | Pipe Size | Gender | Ht. | Wd. | Each | |
Claw-Clamp Intake Connection—120V AC/240V AC, Single Phase | |||||||||||||||||
| 1 × 10 -8 torr @ 72° F | 142 | 50 | 4.6 | 2 1/2" | 3 3/4" | 63 | ISO-K | 1" | 1.57" | 25 | ISO-KF | 1/8 | Male | 13 5/8" | 11 7/8" | 000000 | 000000000 |
Flanged Intake Connection—120V AC/240V AC, Single Phase | |||||||||||||||||
| 1 × 10 -12 torr @ 72° F | 142 | 50 | 4.6 | 2 1/2" | 4 1/2" | 63 | CF | 1 1/2" | 2 3/4" | 40 | CF | 1/8 | Male | 13 7/8" | 11 7/8" | 000000 | 00000000 |
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Each | |
For Claw-Clamp Intake Connection—Double-Claw with Bolt | |||||||
|---|---|---|---|---|---|---|---|
| 2 1/2", 3", 4" | 3.74", 4.33", 5.12" | 63, 80, 100 | ISO-K | Aluminum | 1 × 10 -9 torr @ 72° F | 0000000 | 00000 |
For Quick-Clamp Gauge Connection—Clamp with Wing Nut | |||||||
| 1" | 1.57" | 25 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
Material | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Max. Temp., °F | Each | |
For Claw-Clamp Intake Connection | |||||||||
| 2 1/2" | 3.74" | 63 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 000000 |
For Quick-Clamp Gauge Connection | |||||||||
| 1" | 1.57" | 25 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 300° | 0000000 | 00000 |
