About Pipe Size
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About Pressure Gauges
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About Pressure Transmitters
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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 Pressure Gauges
A liquid-filled dial reduces needle flutter for precise readings in high-vibration applications. Gauges are commonly used with pumps, filters, regulators, and in process lines to measure and display pressure. Mount them with the dial face upright.
Gauges with 304 stainless steel case and ABS plastic case have better corrosion resistance than gauges with brass case.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
- Accuracy: ±1.5% Full Scale (Not Graded)
Available Pressure Ranges | |||||
|---|---|---|---|---|---|
Pressure Range | Graduation Marks | Numeric Increments | |||
| psi | bar | psi | bar | psi | bar |
BSPP Male  | |||||
| 0 to 14.4 | 0 to 1 | 0.4 | 0.02 | 4 | 0.2 |
| 0 to 22.8 | 0 to 1.6 | 0.6 | 0.04 | 6 | 0.4 |
| 0 to 36 | 0 to 2.5 | 1 | 0.05 | 10 | 0.5 |
| 0 to 57.6 | 0 to 4 | 1.6 | 0.1 | 16 | 1 |
| 0 to 86 | 0 to 6 | 2 | 0.1 | 20 | 1 |
| 0 to 144 | 0 to 10 | 4 | 0.2 | 40 | 2 |
| 0 to 228 | 0 to 16 | 6 | 0.4 | 60 | 4 |
| 0 to 360 | 0 to 25 | 10 | 0.5 | 100 | 5 |
| 0 to 576 | 0 to 40 | 16 | 1 | 160 | 10 |
| 0 to 860 | 0 to 60 | 20 | 1 | 200 | 10 |
| 0 to 1,440 | 0 to 100 | 40 | 2 | 400 | 20 |
| 0 to 2,280 | 0 to 160 | 60 | 4 | 600 | 40 |
| 0 to 3,600 | 0 to 250 | 100 | 5 | 1,000 | 50 |
| 0 to 5,800 | 0 to 400 | 160 | 10 | 1,600 | 100 |
| 0 to 8,600 | 0 to 600 | 200 | 10 | 2,000 | 100 |
Absolute Pressure Gauges
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.
Stainless steel gauges have excellent corrosion resistance, so they can be used with more corrosive liquids and gasses than gauges with a brass connection and aluminum case.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Carbon Dioxide, Diesel Fuel, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Natural Gas, Water
- Accuracy: ±1% Full Scale (Not Graded)
Available Pressure Ranges | ||
|---|---|---|
| Pressure Range, mbar | Numeric Increments, mbar | Graduation Marks, mbar |
| 0 to 25 | 5 | 0.5 |
| 0 to 60 | 10 | 1 |
| 0 to 160 | 50 | 5 |
| 0 to 600 | 100 | 10 |
| 0 to 1,000 | 200 | 20 |
Bottom Connection | ||||||
|---|---|---|---|---|---|---|
| Dial Diameter | Pipe Size | Environment Temp. Range, °F | Process Temp. Range, °F | Lens Material | Each | |
BSPP Male | ||||||
| 4" | 1/2 | 5° to 120° | 0° to 200° | Glass | 000000 | 000000000 |
Pressure and Vacuum Transmitters with Digital Display
- For Use With: Air, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water
- Accuracy: ±1%
- Pipe Connection Type: Threaded
- Housing Material: Glass-Reinforced Polyester
- Connection Material: 316L Stainless Steel
- Temperature Range: -10° to 175°F
Monitor and control vacuum pumps, air compressors, and hydraulics while viewing readings and warnings on the display. These transmitters, also called transducers, have two outputs, so you can program them to work as a transmitter, a switch, or both. When they reach their setpoint, they send electrical signals to your programmable logic controller (PLC) to trigger actions in your system. Adjust their reset point anywhere within the setpoint range. To change settings and receive error messages remotely from your PLC or computer, program one of the outputs to use IO Link. You need an IO-Link controller (not included) to connect to your interface.
Buttons on the display let you change your setpoint, measuring range, and other settings. To quickly tell the status of your process, you can program the color of the display to red and green. LEDs on the corners also notify you of your output’s switching status. Rotate the head to view the display from the best angle.
You must calibrate your PLC in order for it to interpret signals from these transmitters. As pressure increases, the output signal from the transmitter will increase. These transmitters only give accurate readings within the rated pressure or vacuum range.
All have an M12 plug to connect to M12 Connectors. When using both switching outputs and an IO-Link controller, they require four wires to connect. For their 4-20mA analog output, they need two wires to connect. View switch wiring diagrams by selecting a part number and clicking Product Detail.
To withstand wet environments, these transmitters have a 316L stainless steel connection and are IP rated. Their IP ratings also mean they’re dust tight and stand up to spraying water and brief submersion. UL and C-UL listed as well as CE marked, they meet strict American, Canadian, and European safety standards.
For technical drawings and 3-D models, click on a part number.
Setpoint Range | Configurable Analog Transmitter/Digital Switch Output | Configurable Digital Switch Output | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pressure Range, psi | Vacuum Range, in. of Hg | Max. Continuous and Short-Term Pressure, psi | Pressure, psi | Vacuum, in. of Hg | Input Voltage | Pipe Size | Ht. | Wd. | No. of | Current | Signal Type | No. of | Signal Type | Scale | Each | |
BSPP Female | ||||||||||||||||
| 0-7.3 | 14.8-0 | 145 | 0-7.3 | 14.8-0 | 18-30V DC | 1/4 | 3 9/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | in. of H2O, kPa, mbar, psi | 0000000 | 0000000 |
| 0-14.5 | 1.4-0 | 145 | 0-14.5 | 1.4-0 | 18-30V DC | 1/4 | 3 9/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | in. of H2O, kPa, mbar, psi | 0000000 | 000000 |
| 0-14.5 | 29.5-0 | 145 | 0-14.5 | 29.5-0 | 18-30V DC | 1/4 | 3 9/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | in. of H2O, in. of Hg, kPa, mbar, psi | 0000000 | 000000 |
| 0-87 | 29.5-0 | 600 | 0-87 | 29.5-0 | 18-30V DC | 1/4 | 3 9/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
| 0-145 | 29.7-0 | 1,085 | 0-145 | 29.7-0 | 18-30V DC | 1/4 | 3 9/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
| 0-360 | 29.5-0 | 2,175 | 0-360 | 29.5-0 | 18-30V DC | 1/4 | 3 9/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
BSPP Male | ||||||||||||||||
| 0-7.3 | 14.8-0 | 145 | 0-7.3 | 14.8-0 | 18-30V DC | 1/4 | 3 11/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
| 0-14.5 | 1.4-0 | 145 | 0-14.5 | 1.4-0 | 18-30V DC | 1/4 | 3 11/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
| 0-14.5 | 29.5-0 | 145 | 0-14.5 | 29.5-0 | 18-30V DC | 1/4 | 3 11/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | in. of H2O, in. of Hg, kPa, mbar, psi | 0000000 | 000000 |
| 0-87 | 29.5-0 | 600 | 0-87 | 29.5-0 | 18-30V DC | 1/4 | 3 11/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
| 0-145 | 29.7-0 | 1,085 | 0-145 | 29.7-0 | 18-30V DC | 1/4 | 3 11/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
| 0-360 | 29.5-0 | 145 | 0-360 | 29.5-0 | 18-30V DC | 1/4 | 3 11/16" | 1 3/8" | 1 | 4-20mA | NPN, PNP | 1 | NPN, PNP | bar, MPa, psi | 0000000 | 000000 |
Flush-Mount Pressure Transmitters
- For Use With: Air, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water
- Accuracy: ±0.05%
- Pipe Connection: BSPP Male
- Housing Material: 316 Stainless Steel
- Connection Material: 316 Stainless Steel
- Diaphragm Material: Fluoroelastomer Rubber
- Temperature Range: -10° to 190° F
The diaphragm on these transmitters mounts flush with your system’s connection, leaving no room for thick liquids to clog or harden. They’re often used to monitor pressure in wastewater, paint, and adhesive-dispensing applications. Also known as transducers, they convert pressure to an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls. For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's pressure range and output signal. As pressure increases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated pressure range.
All are rated IP67 and IP69K, so they'll withstand temporary submersion as well as high-pressure, high-temperature washdowns. CE marked, they meet European safety standards.
Connect using two wires. The same wire is used to send a signal to the receiver and to power the transmitter. Current doesn’t lose signal over long distances and isn’t affected by electrical interference from other devices.
For technical drawings and 3-D models, click on a part number.
| Pressure Range, psi | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Input Voltage | Pipe Size | Ht. | Wd. | Environmental Rating | Each | |
4-20mA Current Output—2-Pole Micro M12 Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0-870 | 2,175 | 2,175 | 8.5-36V DC | 1/4 | 1 1/2" | 3/4" | IP67, IP69K | 0000000 | 0000000 |
| 0-1,450 | 3,625 | 3,625 | 8.5-36V DC | 1/4 | 1 1/2" | 3/4" | IP67, IP69K | 0000000 | 000000 |
| 0-2,320 | 5,800 | 5,800 | 8.5-36V DC | 1/4 | 1 1/2" | 3/4" | IP67, IP69K | 0000000 | 000000 |
| 0-3,625 | 9,060 | 9,060 | 8.5-36V DC | 1/4 | 1 1/2" | 3/4" | IP67, IP69K | 0000000 | 000000 |
| 0-5,800 | 11,580 | 11,580 | 8.5-36V DC | 1/4 | 1 1/2" | 3/4" | IP67, IP69K | 0000000 | 000000 |
Thread Identifier Sets
Set includes calipers and gauges to identify external and internal threads.
Container | |||||||
|---|---|---|---|---|---|---|---|
| For Use With | For Thread Type | For Thread Location | Type | Material | Includes | Each | |
Inch, Metric | |||||||
Steel | |||||||
| Screws, Bolts, Threaded Rods, Nuts, Pipe | NPT, UNC, UNF, BSPT, BSPP, Metric | External/Internal | Folding Case | Plastic | Caliper, Instruction Book, Two Steel Angle Gauges, Two Steel Gauges | 000000 | 000000 |
Any-Orientation Flowmeters
A spring piston instead of a float allows these flowmeters to measure flow rate in any mounting orientation. As liquid passes through, it pushes an indicator up the scale, showing you the flow rate. They have union fittings on both ends, making it easy to position the scale so it’s visible.
These flowmeters are calibrated with water but can be used with other liquids. If you’re using these with a liquid other than water, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for your liquid.
Choose a fitting material that is compatible with the liquid you intend to run through your line. Polysulfone fittings work with a wide range of chemicals. However, they can crack from impact or when overtightened.
For technical drawings and 3-D models, click on a part number.
| Flow Range, gpm | End-to-End Lg. | Accuracy | Max. Pressure | Temp. Range, °F | Body Material | Seal Material | Mounting Orientation | Features | Each | |
Polysulfone Plastic Fittings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1/2 BSPP Female Pipe Connection | ||||||||||
| 0.5 to 5 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 0000000 |
| 1 to 15 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
3/4 BSPP Female Pipe Connection | ||||||||||
| 0.5 to 5 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
| 1 to 15 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
| 3 to 30 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
1 BSPP Female Pipe Connection | ||||||||||
| 0.5 to 5 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
| 1 to 15 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
| 3 to 30 | 7 9/16" | ±2% | 325 psi @ 70° F | -20° to 200° | Polycarbonate Plastic | Fluoroelastomer Rubber | Any | Union Fittings | 00000000 | 000000 |
Shatter-Resistant Sights
The window and body are made from a single piece of plastic, making these sights more shatter resistant than sights with a glass window. They are not rated for pressure.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Window Dia. | Hex Size | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
Plastic | ||||||||||
BSPP Male Thread | ||||||||||
| 1/4 | 3/8" | 5/8" | Not Rated | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 0000000 | 00000 |
| 3/8 | 3/8" | 3/4" | Not Rated | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 0000000 | 0000 |
| 1/2 | 1/2" | 7/8" | Not Rated | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 0000000 | 0000 |
| 3/4 | 3/4" | 1" | Not Rated | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 0000000 | 0000 |
| 1 | 1" | 1 3/8" | Not Rated | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 0000000 | 0000 |
| 1 1/4 | 1 1/8" | 1 5/8" | Not Rated | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Plastic | Buna-N Rubber | 0000000 | 00000 |
Sights
These sights have a glass window. Screw them into threaded holes on tanks, gear cases, bearing housings, and mixers to see inside.
Sights with BSPP (British Standard Pipe Parallel) threads are often used with imported equipment.
Sights for dark liquid have a reflector that makes liquid easy to see, especially in low-light conditions.
Aluminum sights have good corrosion resistance.
303 stainless steel sights are more corrosion resistant than brass, steel, and aluminum sights.
For technical drawings and 3-D models, click on a part number.
Temp. Range, °F | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Window Dia. | Hex Size | Max. Pressure | Min. | Max. | For Use With | Window Material | Seal Material | Each | |
For Clear Liquid | ||||||||||
Brass | ||||||||||
BSPP Male Thread | ||||||||||
| 3/8 | 3/8" | 3/4" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 000000 |
| 1/2 | 1/2" | 7/8" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
| 3/4 | 5/8" | 1 1/8" | 360 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
| 1 | 1" | 1 3/8" | 290 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
Aluminum | ||||||||||
BSPP Male Thread | ||||||||||
| 3/8 | 3/8" | 3/4" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 1/2 | 1/2" | 7/8" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 3/4 | 5/8" | 1 1/8" | 360 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 1 | 1" | 1 3/8" | 290 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 1 1/4 | 1 1/4" | 1 3/4" | 180 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
303 Stainless Steel | ||||||||||
BSPP Male Thread | ||||||||||
| 3/8 | 3/8" | 3/4" | 725 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 000000 | 00000 |
| 1/2 | 1/2" | 7/8" | 725 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 000000 | 00000 |
| 3/4 | 5/8" | 1 1/8" | 360 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 000000 | 00000 |
| 1 | 1" | 1 3/8" | 290 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 000000 | 00000 |
For Dark Liquid | ||||||||||
Brass | ||||||||||
BSPP Male Thread | ||||||||||
| 3/8 | 3/8" | 3/4" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
| 1/2 | 1/2" | 7/8" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
| 3/4 | 5/8" | 1 1/8" | 360 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
| 1 | 1" | 1 3/8" | 290 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 000000 | 00000 |
Aluminum | ||||||||||
BSPP Male Thread | ||||||||||
| 3/8 | 3/8" | 3/4" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 1/2 | 1/2" | 7/8" | 725 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 3/4 | 5/8" | 1 1/8" | 360 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 1 | 1" | 1 3/8" | 290 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
| 1 1/4 | 1 1/4" | 1 3/4" | 180 psi @ 70° F | -20° | 210° | Water, Diesel Fuel, Hydraulic Fluid (Petroleum Based) | Glass | Buna-N Rubber | 0000000 | 00000 |
303 Stainless Steel | ||||||||||
BSPP Male Thread | ||||||||||
| 3/8 | 3/8" | 3/4" | 725 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 0000000 | 00000 |
| 1/2 | 1/2" | 7/8" | 725 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 0000000 | 00000 |
| 3/4 | 5/8" | 1 1/8" | 360 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 0000000 | 00000 |
| 1 | 1" | 1 3/8" | 290 psi @ 70° F | 0° | 350° | Water, Hydraulic Fluid, Diesel Fuel | Glass | Fluoroelastomer Rubber | 0000000 | 00000 |