About Pipe Size
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About Pressure Gauges
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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 Selecting Temperature Sensors
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About Flowmeters and Totalizers
Flowmeters measure the rate of flow for a liquid or a gas. Totalizers measure the cumulative flow volume. Flowmeter/totalizers display both the flow rate and the cumulative flow volume.
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Vibration-Resistant Food and Beverage Pressure Gauges
A glycerin-filled dial reduces needle flutter for precise readings in high-vibration food-processing applications. Gauges are 3-A certified for sanitary design in dairy and other food-processing environments. Use them with pumps, filters, regulators, and in process lines to measure and display pressures.
For technical drawings and 3-D models, click on a part number.
- For Use With: Food, Dairy
- Accuracy:
Up to 60 psi: ±2% Full Scale (Not Graded)
100 psi and above: ±1.5% Full Scale (Not Graded)
Available Pressure Ranges | ||
---|---|---|
Pressure Range, psi | Numeric Increments, psi | Graduation Marks, psi |
0 to 30 | 5 | 0.5 |
0 to 60 | 5 | 1 |
0 to 100 | 10 | 1 |
0 to 200 | 20 | 2 |
0 to 300 | 30 | 5 |
0 to 400 | 50 | 5 |
0 to 600 | 50 | 10 |
Bottom Connection | |||||||||
---|---|---|---|---|---|---|---|---|---|
Dial Diameter | For Tube OD | Environment Temp. Range, °F | Process Temp. Range, °F | Specifications Met | Mounting Orientation | Tube Connection Type | Connection Flange OD | Each | |
2 1/2" | 1 1/2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 1.96" | 0000000 | 0000000 |
2 1/2" | 2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 2.52" | 0000000 | 000000 |
3 1/2" | 1 1/2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 1.96" | 0000000 | 000000 |
3 1/2" | 2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 2.52" | 0000000 | 000000 |
Food and Beverage Pressure Gauges
These gauges are 3-A certified for sanitary design in dairy and other food processing applications. Use them with pumps, filters, regulators, and in process lines to measure and display pressures.
For technical drawings and 3-D models, click on a part number.
- For Use With: Food, Dairy
- Accuracy:
Up to 60 psi: ±2% Full Scale (Not Graded)
100 psi and above: ±1.5% Full Scale (Not Graded)
Available Pressure Ranges | ||
---|---|---|
Pressure Range, psi | Numeric Increments, psi | Graduation Marks, psi |
0 to 30 | 5 | 0.5 |
0 to 60 | 5 | 1 |
0 to 100 | 10 | 1 |
0 to 200 | 20 | 2 |
0 to 300 | 30 | 5 |
0 to 400 | 50 | 5 |
0 to 600 | 50 | 10 |
Bottom Connection | |||||||||
---|---|---|---|---|---|---|---|---|---|
Dial Diameter | For Tube OD | Environment Temp. Range, °F | Process Temp. Range, °F | Specifications Met | Mounting Orientation | Tube Connection Type | Connection Flange OD | Each | |
2 1/2" | 1 1/2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 1.98" | 0000000 | 0000000 |
2 1/2" | 2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 2.49" | 0000000 | 000000 |
3 1/2" | 1 1/2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 1.98" | 0000000 | 000000 |
3 1/2" | 2" | 0° to 150° | 0° to 250° | 3-A Certified 74-07 | Any | Quick-Clamp | 2.49" | 0000000 | 000000 |
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 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 |
Flow Sights for Food and Beverage
Made of FDA-listed materials for use with food and beverage, these sights have sanitary quick-clamp connections and an electropolished 316 stainless steel body for easy disassembly and cleaning. They meet USP (United States Pharmacopeia) Class IV standard for food applications. Sights let you visually confirm flow and inspect liquid color and clarity. Backlight the back window to increase the visibility of dark liquids.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Temp. Range, °F | Window Lg. | End-to-End Lg. | Ht. | Max. Pressure | Direction of Flow | Specifications Met | Each | |
316 Stainless Steel Body | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/2" | -20° to 300° | 3/4" | 3" | 1/2" | 150 psi @ 265° F | Any Direction | FDA Compliant 21 CFR 177.2600, USP Class IV | 0000000 | 0000000 |
3/4" | -20° to 300° | 1 1/8" | 3 3/8" | 3/4" | 150 psi @ 265° F | Any Direction | FDA Compliant 21 CFR 177.2600, USP Class IV | 0000000 | 000000 |
1" | -20° to 300° | 1 1/8" | 3 1/2" | 1" | 120 psi @ 265° F | Any Direction | FDA Compliant 21 CFR 177.2600, USP Class IV | 0000000 | 000000 |
1 1/2" | -20° to 300° | 1 1/2" | 4 1/8" | 1 1/2" | 115 psi @ 265° F | Any Direction | FDA Compliant 21 CFR 177.2600, USP Class IV | 0000000 | 000000 |
2" | -20° to 300° | 1 7/8" | 4 3/4" | 2" | 100 psi @ 265° F | Any Direction | FDA Compliant 21 CFR 177.2600, USP Class IV | 0000000 | 000000 |
Flowmeter/Totalizers with Sanitary Quick-Clamp Fittings
Easy to remove for cleaning and maintenance, these flowmeter/totalizers connect to sanitary quick-clamp fittings (often called tri-clamp fittings) and measure the flow rate and volume of liquid passing through your system. You'll need a gasket and clamp (not included) to connect these to your line. They count how many times their turbine turns as liquid passes through to measure flow. To avoid clogging the turbine and other damage to the sensor, use them only with clean, low-viscosity liquids. You can reset the batch total, but you can't reset the cumulative total. Mount them directly inline with your piping system. They measure flow correctly no matter the mounting orientation.
For use in hazardous locations, these flowmeter/totalizers are FM-approved. They’re also rated NEMA 4 to protect against weather and washdowns.
These flowmeter/totalizers are calibrated with either water or solvent. You can recalibrate them in the field to other liquids, pipe, and operating conditions.
Flowmeter/totalizers with a calibration certificate traceable to NIST states that the flowmeter/totalizer has passed a test for accuracy.
90° display adapter kits let you rotate the meter’s display 90°, so you can read it easier when mounted vertically.
Flowmeter/Totalizers | Replacement Displays | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Gender | Flow Range, gpm | Flange OD | End-to-End Lg. | Accuracy | Max. Total Volume, gallons | Max. Batch Volume, gallons | Max. Pressure | Temp. Range, °F | Each | Each | ||
Flowmeter/Totalizers | |||||||||||||
316 Stainless Steel Body with 316 Stainless Steel Fittings | |||||||||||||
3/4" | Female | 1 to 10 | 0.984" | 5" | ±1.5% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 000000000 | 00000000 | 0000000 |
1" | Female | 2 to 20 | 1.984" | 5" | ±1% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
1 1/2" | Female | 5 to 50 | 1.984" | 5 1/2" | ±1% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
2" | Female | 10 to 100 | 2.515" | 6 1/2" | ±0.75% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
2 1/2" | Female | 20 to 200 | 3.047" | 7" | ±0.75% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
Flowmeter/Totalizers with Certificate of Calibration Traceable to NIST | |||||||||||||
316 Stainless Steel Body with 316 Stainless Steel Fittings | |||||||||||||
3/4" | Female | 1 to 10 | 0.984" | 5" | ±1.5% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
1" | Female | 2 to 20 | 1.984" | 5" | ±1% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
1 1/2" | Female | 5 to 50 | 1.984" | 5 1/2" | ±1% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
2" | Female | 10 to 100 | 2.515" | 6 1/2" | ±0.75% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
2 1/2" | Female | 20 to 200 | 3.047" | 7" | ±0.75% | 999,999 | 999,999 | 1500 psi @ 70 ° F | 14° to 140° | 0000000 | 00000000 | 00000000 | 000000 |
High-Vacuum Sights for Quick-Clamp Fittings
Designed with quick-clamp (KF) connections, these sights connect to a port on a high-vacuum chamber, so you can monitor what's happening inside. A sleeve seals the glass window to the body of the sight to prevent leaks. To connect to your chamber, you'll need a clamp and a ring (sold separately). Not for use in pressure applications.
For technical drawings and 3-D models, click on a part number.
Window | ||||||||
---|---|---|---|---|---|---|---|---|
High-Vacuum Flange Size | For Flange OD | High Vacuum Connection Type | Max. Vacuum | Dia. | Material | Max. Temp., °F | Each | |
304 Stainless Steel | ||||||||
16 | 1.18" | ISO-KF | 1 × 10 -9 torr @ 72° F | 5/8" | Glass | 660° | 0000000 | 0000000 |
25 | 1.57" | ISO-KF | 1 × 10 -9 torr @ 72° F | 5/8" | Glass | 660° | 0000000 | 000000 |
40 | 2.16" | ISO-KF | 1 × 10 -9 torr @ 72° F | 1 1/4" | Glass | 660° | 0000000 | 000000 |
50 | 2.95" | ISO-KF | 1 × 10 -9 torr @ 72° F | 1 1/4" | Glass | 660° | 0000000 | 000000 |
For High-Vacuum Flange Size | For Flange OD | For Tube OD | Material | Max. Vacuum | High Vacuum Connection Type | Each | |
10, 16 | 1.18" | 1/2", 3/4" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 00000000 | 00000 |
25 | 1.57" | 1" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
40 | 2.16" | 1 1/2" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
50 | 2.95" | 2" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
For High-Vacuum Flange Size | For Flange OD | For Tube OD | Inner Ring Material | Max. Vacuum | High Vacuum Connection Type | Each | |
16 | 1.18" | 3/4" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 00000000 | 00000 |
25 | 1.57" | 1" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
40 | 2.16" | 1 1/2" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
50 | 2.95" | 2" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
Food and Beverage Thermometers with Sanitary Quick-Clamp Connection
For dairy, food, and beverage applications that require frequent cleaning, these 3-A certified thermometers have a sanitary quick-clamp connection for easy removal.
For technical drawings and 3-D models, click on a part number.
Available Temperature Ranges | ||
---|---|---|
Temperature Range | Graduation Marks | Accuracy |
-40° to 120° F | 1° F | ±1% |
0° to 200° F | 2° F | ±1% |
0° to 250° F | 2° F | ±1% |
50° to 300° F | 2° F | ±1% |
0° to 100° C | 1° C | ±1% |
0° to 150° C | 1° C | ±1% |
Stem | Material | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Dial Dia. | For Tube OD | Flange OD | Housing | Stem | Lens | Flange | Specifications Met | Each | |
Back Connection | |||||||||||
2 1/2" | 5/16" | 3" | 1 1/2" | 1.984" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 0000000 |
2 1/2" | 5/16" | 3" | 2" | 2.516" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
2 1/2" | 5/16" | 5" | 1 1/2" | 1.984" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
2 1/2" | 5/16" | 5" | 2" | 2.516" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
4 1/2" | 5/16" | 3" | 1 1/2" | 1.984" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
4 1/2" | 5/16" | 3" | 2" | 2.516" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
4 1/2" | 5/16" | 5" | 1 1/2" | 1.984" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
4 1/2" | 5/16" | 5" | 2" | 2.516" | Stainless Steel | Stainless Steel | Acrylic | Stainless Steel | 3-A Certified 74-07 | 00000000 | 000000 |
Sanitary RTD Probes
Designed for clean-in-place applications such as dairy processing and food-preparation areas, these 3-A certified RTDs have a sanitary quick-clamp connection for easy removal.
For technical drawings and 3-D models, click on a part number.
Probe | Conduit Connection | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RTD Type | Temperature Range, °F | Lg. | Dia. | Flange OD | Accuracy | Response Time, sec. | Connection Type | Pipe Size | Thread Type | Gender | Overall Lg. | Each | |
316 Stainless Steel Probe with Plastic Head | |||||||||||||
For 1 1/2" Tube OD | |||||||||||||
100 ohms | -325° to 400° | 4" | 1/4" | 1.984" | ±0.1% | 5 | Screw Terminal | 3/4 | NPT | Female | 11" | 0000000 | 0000000 |
For 2" Tube OD | |||||||||||||
100 ohms | -325° to 400° | 4" | 1/4" | 2.516" | ±0.1% | 5 | Screw Terminal | 3/4 | NPT | Female | 11" | 0000000 | 000000 |
Sanitary RTD Probe Transmitters with Digital Display
Check the temperature of liquids in hygienic applications such as food or pharmaceutical lines and tanks. Certified by 3-A to meet sanitary design standards, the parts of these probes that will touch liquid are highly polished to minimize spots where bacteria could grow. They're rated IP67 and IP69K, so they'll withstand temporary submersion as well as the high-pressure, high-temperature washdowns that are common in hygienic cleaning practices. Made of stainless steel, harsh cleaners and sanitizers won't cause them to corrode. They have a flange that will connect to sanitary quick-clamp fittings (also known as tri-clamp fittings); they're easy to connect and remove from your line.
Program these probes with the touch screen, and select one of three colors as a visual alert for events in your process such as irregular or fluctuating temperatures. The head swivels 345° and the face rotates all the way around, so you can mount the sensor at any angle and still see the display. To trigger actions in your process line, connect these probes to remote displays, programmable logic controllers (PLCs), and other control equipment with the M12 plug. These probes meet DIN EN 60751, an industry standard for accuracy. They’re also CE marked, meaning they meet European Union safety standards.
For technical drawings and 3-D models, click on a part number.
Probe | Probe Transmitters | Cables with Socket | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RTD Type | Temperature Range, °F | Lg. | Dia. | Flange OD | Accuracy | Response Time, sec. | Plug Type | DC Voltage | Max. Pressure, psi | Output Current | Overall Lg. | Each | Each | ||
316L Stainless Steel Probe with 304 Stainless Steel Head (IP67, IP69K) | |||||||||||||||
For 1 1/2" Tube OD | |||||||||||||||
100 ohms | -55° to 480° | 2" | 5/16" | 1.988" | ±0.1% | 25 | 5-Pole Micro M12 | 8-35 | 580 | 4-20mA | 6 3/4" | 0000000 | 0000000 | 0000000 | 000000 |
Food and Beverage Thermowells with Sanitary Quick-Clamp Connection
Isolate thermometers and temperature probes from the contents of dairy and food-processing equipment with these 3-A certified thermowells that have a sanitary quick-clamp connection for easy removal. They require a quick-clamp fitting (not included) for installation.
For technical drawings and 3-D models, click on a part number.
For Thermometer | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD | Stem Lg. | Stem Dia. | Connection Pipe Size | Connection Thread Type | Connection Gender | Nut Lg. | Insertion Lg. | Flange OD | Specifications Met | Each | |
316 Stainless Steel | |||||||||||
1", 1 1/2" | 2 1/2" | 1/4" | 1/2 | NPT | Male | 1 1/16" | 1 5/8" | 1.984" | 3-A Certified 74-06 | 0000000 | 0000000 |
1", 1 1/2" | 4" | 1/4" | 1/2 | NPT | Male | 1 3/4" | 2 1/2" | 1.984" | 3-A Certified 74-06 | 0000000 | 000000 |
1", 1 1/2" | 6" | 1/4" | 1/2 | NPT | Male | 1 3/4" | 4 1/2" | 1.984" | 3-A Certified 74-06 | 0000000 | 000000 |
1", 1 1/2" | 9" | 1/4" | 1/2 | NPT | Male | 1 3/4" | 7 1/2" | 1.984" | 3-A Certified 74-06 | 0000000 | 000000 |
2" | 2 1/2" | 1/4" | 1/2 | NPT | Male | 1 1/16" | 1 5/8" | 2.516" | 3-A Certified 74-06 | 0000000 | 000000 |
2" | 4" | 1/4" | 1/2 | NPT | Male | 1 3/4" | 2 1/2" | 2.516" | 3-A Certified 74-06 | 0000000 | 000000 |
2" | 6" | 1/4" | 1/2 | NPT | Male | 1 3/4" | 4 1/2" | 2.516" | 3-A Certified 74-06 | 0000000 | 000000 |
2" | 9" | 1/4" | 1/2 | NPT | Male | 1 3/4" | 7 1/2" | 2.516" | 3-A Certified 74-06 | 0000000 | 000000 |