Maintain the air pressure needed for air-powered devices. These switches turn your electric air compressor off when it reaches the set pressure and on when it reaches the reset pressure.

Kick off automated controls, signal alarms, or activate equipment based on pressure changes while checking the pressure, setpoint, and reset point on the display.

Compatible with most air systems, these switches send digital signals to a programmable logic controller (PLC) to trigger separate processes when they reach either of their two set pressures. For example, they’ll activate a compressor if the pressure is too low or a relief valve if the pressure is too high.

When these switches reach either of their two set pressures—both of which can be controlled from a display—they send digital signals to your programmable logic controller (PLC) to activate automated controls or alarms.

Choose when these switches reset to control the pressure range between when they activate and deactivate, commonly referred to as deadband and differential.

With multiple ports, these switches maintain the air pressure of your electric air compressor, while also including ports for up to three air-powered devices, reducing the complexity of your air system setup.

Trigger two different automated processes, each with their own set pressure.

Used as a safety control, these switches must be manually reset each time they hit the set pressure, so you can inspect equipment before it restarts.

Cleaned to ASTM G93 requirements and then bagged, these switches meet the strict cleaning standards required for oxygen service lines.

With two setpoints and outputs, these switches trigger different actions in your system by sending signals to a programmable logic controller (PLC) when they reach one of their set pressures or vacuums.

When these 3-A certified switches reach a set pressure or vacuum, they trigger controls and alarms in food-processing, pharmaceutical, and biotech lines.

Choose these switches when you need reliable switching but not high accuracy.

Often built into pumps and hydraulic systems with limited space, these compact switches power equipment, activate controls, and signal alarms when they reach a set vacuum.

Trigger two different processes in vacuum applications by sending signals to a programmable logic controller (PLC) when these switches reach one of their two set vacuums. They’re designed specifically for air systems.

Often used with ovens, dryers, and HVAC systems, these switches detect small differences in air pressure to indicate a filter is clogged or help you maintain a certain air pressure.

With an explosionproof enclosure that meets NEMA 7 and 9 standards for hazardous locations, these switches were tested and verified by UL and CSA for use where explosive gas or dust may be present. Often used with ovens, dryers, and HVAC systems, they can indicate a filter is clogged or help maintain a certain air pressure.

Detect the difference in pressure between two points. For instance, these switches can indicate a filter is clogged in a pump or cooling system.

These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure.

For a longer service life than brass and cast iron valves, these have a durable bronze body.

A cast iron body absorbs vibration from pressure changes to reduce wear and noise in your pipeline.

For extremely high-pressure applications in tight spots, these valves handle the same inlet pressures as other ultra-high-pressure-regulating valves within a smaller footprint.

Withstand more than six times the inlet pressure of standard pressure-regulating valves.

Hook up these valves to equipment with garden hose thread (GHT) connections.

Valves have a brass body and NPT connections.

Often used for oxygen service and other high-purity applications, these valves are cleaned and bagged to meet CGA G-4.1 standards to prevent contamination.

A 316 stainless steel body provides exceptional corrosion resistance in wet conditions and harsh environments.

Withstand inlet pressures up to 3,500 psi.

Regulate pressure in air and inert gas systems from your instrument panel—these valves have threads below the adjustment knob and come with a panel-mount nut.

Maintain contaminant-free standards in clean room environments. These valves come cleaned and bagged to Fed. Spec. Class 100 and ISO Class 5 clean room standards and have a 316 stainless steel body with a smooth finish to resist dust collection.

These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure.

Commonly used in TIG welding where gas flow/coverage is a concern.

Often used for pressure-vessel testing and other high-pressure applications, these valves can handle at least seven times the outlet pressure of standard tank-mount pressure-regulating valves.

For a longer service life than standard valves for cryogenic liquids, these have a durable bronze body. They’re for use with liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen.

Designed for oxygen service and other high-purity applications, these valves can withstand the extreme cold of liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen.

A 316 stainless steel body provides exceptional corrosion resistance in wet conditions and harsh environments.

Control steam line pressure with ±1 psi accuracy.

For a longer service life than cast iron valves, these have a durable bronze body.

Valves have NPT connections.

These valves meet NSF/ANSI 61 for use in drinking water systems.

Install these valves directly in gas distribution pipelines.

It's like getting four regulators in one—each comes with four springs so you can change between regulating pressure ranges of 2-30, 10-50, 30-90, and 100-180 psi.

Use these valves in pipelines.

Designed to meet 3-A sanitary standards, these valves regulate liquid, gas, and air pressure in hygienic zones of food and beverage plants.

A lighter and more corrosion-resistant alternative to metal vacuum-regulating valves.

For a longer service life than brass vacuum-regulating valves, these are made of bronze for strength and durability.

With a 316 stainless steel body for exceptional corrosion resistance, these valves are often used in wet conditions and harsh environments. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

These valves have a bronze body for durability and a long service life. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

Attach a pressure gauge to the 1/4 NPT female port on these valves.

Choose these valves for small steam-heating boilers requiring pressure relief between 5 psi and 12 psi.

For use with low-pressure steam-heating boilers requiring pressure relief at 15 psi, these valves meet ASME Code Section IV.

The most basic option for air and inert gas applications.

Our only valves that meet ASME Code Section VIII for use with cryogenic pressure vessels. They are for use with argon, carbon dioxide, helium, hydrogen, methane, nitrogen, and oxygen.

Also known as T & P valves, these open when water temperature reaches 210° F or at the set pressure.

For a low-pressure seal around plastic and soft metal tubing, these valves have push-to-connect fittings.

These valves are commonly used with pumps in low-pressure water systems.

Change set pressure without guesswork—the adjustment screw is marked in 25 psi increments for making pressure adjustments without a gauge.

These valves are often used with catalysts, pH buffers, and electroplating solutions.

With a three-port design, these valves allow inline flow from the inlet to the outlet during normal conditions and divert flow through the relief port in overpressure conditions. They are often used with feed pumps for fertilizers and bleach.

Cleaned and bagged for oxygen service and other high-purity applications, these valves are built to withstand the extreme cold of liquid carbon dioxide, liquid nitrogen, and liquid oxygen.

Remotely track your system's pressure readings from the convenience of a smartphone or tablet. Good for preventative maintenance and route-based monitoring, these battery-powered transmitters use Bluetooth to alert you when equipment requires your attention.

These transmitters automatically compensate for error introduced by vibration as well as temperature fluctuations, so you do not need to program your receiving device to correct for these factors. 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 to monitor pressure or control equipment.

At least four times as accurate as standard pressure transmitters, these transmitters are ideal for use in laboratories and analytical testing applications.

Monitor and control pressure in portable HVAC systems, hydraulics, and oil and gas equipment. Unlike other pressure transmitters that measure the difference between your system and the atmosphere, these transmitters give measurements relative to zero pressure—regardless of altitude or temperature.

Adhere to safety standards and monitor pressure when working with high concentrations of oxygen.

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.

Measure your equipment’s pressure and send the data directly to a development board or single-board computer. Also known as transducers, these transmitters convert pressure into an electrical I²C signal and transmit it to your board.

With an accuracy of ±0.25%, use these transmitters in applications that require highly accurate measurement of both pressure and vacuum, such as activating vacuum pumps.

Monitor your system’s pressure and vacuum from a smartphone or tablet via Bluetooth. These battery-powered transmitters send alerts if equipment requires your attention, so they’re good for preventative maintenance and route-based monitoring.

Monitor and control vacuum pumps, air compressors, and hydraulics while viewing readings and warnings on the display.

Remotely monitor the difference in air pressure between two inputs with these transmitters.

Check the difference in air pressure between two inputs at the source using the dial indicator or remotely using a receiver.

Used with pumps, cooling systems, and other liquid applications, these transmitters remotely measure the difference in pressure between two inputs.

Safe for use in environments where flammable gases and vapors are present, these transmitters measure the difference in pressure between two process lines without needing to program your receiving device to correct for errors. They meet NEC safety standards for protection against an explosion.

At least four times as accurate as standard vacuum transmitters, these transmitters sense vacuum at an accuracy of ±0.25%, making them ideal for use in laboratories and in analytical testing applications.

Account for changes in vacuum readings over time by fine-tuning the vacuum range on these transmitters.

Mount these regulators to a 35 mm DIN rail with the included bracket.

View and control output pressure remotely and at the source.

A pressure-calibrated dial allows for easy adjustments to outlet pressure in high-flow applications.

Fit these regulators in tight spaces to adjust and maintain air pressure in sensitive applications where constant, consistent pressure is important.

Mount these regulators to a 35 mm DIN rail or a wall with one of the two included brackets.

Adjust and maintain the pressure of your compressed air.

Adjust and maintain the pressure of your compressed air.

Adjust and maintain the pressure of your compressed air.

Adjust and maintain the pressure of your compressed air.

An internal check valve permits reverse flow, so these regulators work with double-acting cylinders.

Cleaned and double bagged in an ISO Class 3 and Fed. Spec. Class 1 clean room for protection from contamination, these regulators are suitable for use in clean rooms.

Use these regulators to adjust and maintain the pressure of your tubing air lines.

A 316 stainless steel housing allows these regulators to withstand corrosive environments in the semiconductor, marine, chemical, instrumentation, and paper industries.

Connect two or more of these manifold regulators to meet multiple pressure requirements from a single air supply—set a different output pressure with each regulator.

Use a single air supply to meet the pressure requirements of multiple applications—connect one of these manifolds to your air line, and then set a different output pressure for each station.

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.

A filter and regulator joined top-to-bottom, these filter/regulators fit in the same space as a filter alone.

A filter and regulator joined top-to-bottom, these filter/regulators fit in the same space as a filter alone.

With ±0.2 psi accuracy, these filter/regulators provide more precise control than our other compressed air filter/regulators.

A filter and regulator joined top-to-bottom, these filter/regulators fit in the same space as a filter alone.

A filter and regulator joined top-to-bottom, these filter/regulators fit in the same space as a filter alone.

A stainless steel housing and bowl allow these filter/regulators to withstand corrosive environments in the semiconductor, marine, chemical, instrumentation, and paper industries.

These filter/regulator combinations come as one convenient unit that cleans the air as it regulates pressure.