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About Pressure Gauges
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About Pipe Size
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Hand-Held High-Vacuum Gauges
Front
Back
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).
ABS Plastic Case with 304 Stainless Steel Connection—(Torr, mbar, hPa)
- For Use With: Air
- Accuracy: ±10% @ 7.5 to 7.5 × 10 -3 torr, ±30% @ 75 to 7.5 torr
Vacuum Range | ||
|---|---|---|
| Torr | mbar | hPa |
| 750 to 7.5 × 10 -5 | 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 |
Absolute Pressure Gauges
Bottom Connection
Unlike other gauges that measure the difference between your system and the atmosphere, these give measurements relative to zero pressure. They’re often used in laboratory applications, and they are barometrically independent.
Gauges with a Torr scale are also known as Torr gauges.
For technical drawings and 3-D models, click on a part number.
Anodized Aluminum Case with Brass Connection—Dual Scale (mbar, Torr)
- For Use With: Air
- Accuracy: ±2% Full Scale (Not Graded)
Available Pressure Ranges | |||||
|---|---|---|---|---|---|
Numeric Increments | Graduation Marks | ||||
| Pressure Range, mbar | Pressure Range, Torr | mbar | Torr | mbar | Torr |
| 0 to 25 | 0 to 20 | 5 | 2 | 0.5 | 0.2 |
| 0 to 50 | 0 to 40 | 10 | 10 | 1 | 1 |
| 0 to 130 | 0 to 100 | 20 | 20 | 2 | 2 |
| 0 to 1,000 | 0 to 760 | 200 | 100 | 20 | 10 |
Bottom Connection | ||||||
|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size  | Environment Temp. Range, °F | Process Temp. Range, °F | Lens Material | Each | |
NPT Male | ||||||
| 4" | 1/4 | 5° to 120° | 0° to 145° | Glass | 000000 | 0000000 |