Don't let background noise drown out your conversation. These devices allow you to increase and adjust the volume of your telephone receiver.

For monitoring the number of shaft turns on instrumentation, these knobs have easy-to-read scales or digits for quick and accurate readings. Use them on devices with round shafts.

More precise than analog potentiometers, these have a three-digit display that is easy to read.

Mount valves to a single-station base or to a manifold, which allows a single pressure source for multiple valves, then add or remove valves as your needs change.

Also known as 4-way and 4/2 valves, these valves create two actions, such as extending and then retracting a cylinder. Use your foot to operate them, leaving your hands free to perform other tasks.

These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. Also known as 4/3 closed-center valves, they create two actions, such as extracting and then retracting a double-acting cylinder.

Run through equipment cycles up to 30% faster than with standard valves. These valves shift between flow positions in 1.7 ms. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port.

These valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place. They create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 4-way and 5/3 closed center valves.

Create two actions at the same time, such as extending two single-acting cylinders at once. Apply voltage to the electrical connection to actuate. Also known as pressure center valves.

Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 4-way and 5/2 valves.

Control these valves with one hand. Also known as 4/2 valves, they create two actions, such as extending and then retracting a double-acting cylinder.

In the off position, these valves exhaust all air pressure, allowing the equipment to return to the neutral position. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Apply voltage to the electrical connection to actuate.

In the off position, these valves stop equipment in a locked position with air pressure holding it in place. Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They actuate by air signal, so they're good for environments where electrical use may be dangerous.

Often used to extend and then retract a cylinder at different speeds, they create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as pilot valves and 4-way valves, they use an air signal to actuate, so they're good for environments where electrical use may be dangerous.

These valves create one action, such as extending a cylinder. Apply voltage to the electrical connection to actuate. They're also known as 3/2 valves.

Since both hands are required to simultaneously press the buttons, these valves protect workers from accidental machinery start-up. They create one action, such as extending a cylinder.

In the off position, these valves exhaust all air pressure, allowing the equipment to return to the neutral position. They create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 4-way and 5/3 exhaust center valves.

With two 3-way integrated solenoid valves, these electrically controlled valves direct airflow to end-of-arm tools that don’t require vacuum suction, such as pick-and-place grippers. Also known as 3/2 valves, each of the two solenoid valves directs air to a different port.

Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 5/2 valves, they actuate when voltage is applied to the electrical connection.

Use a single valve to create motion and control the speed of that motion.

These valves are rated for environments where hazardous material is present. They actuate when voltage is applied to the electrical connection.

Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. They activate when an object, such as a box rolling on a conveyor, pushes the actuator. Also known as 4-way and 5/2 valves.

Mount these valves directly to cylinder ports, eliminating additional tubing between the cylinder and valve for better control than inline valves. They control the speed of air-powered equipment by adjusting the volume of airflow.

Prevent accidental airflow changes with these valves, which require an adjustment tool to alter their flow rate. They control the speed of air-powered equipment by adjusting the volume of airflow.

A fine-adjustment dial allows tighter control of airflow and cylinder speed than other flow control valves. They control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting.

Designed to be mounted inline, these valves can be placed in easy-to-reach locations. Made of plastic and stainless steel parts, they have excellent corrosion resistance. They control the speed of air-powered equipment by adjusting the volume of airflow.

These valves handle pressure up to 265 psi. They control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting.

Made of PBT, these plastic valves are more corrosion resistant than valves made of aluminum or nylon. A single dial adjusts airflow equally in both directions, controlling the extension and retraction speed of an air cylinder at the same time.

Protect air-powered equipment in emergency shut-off situations—when system pressure drops, these valves automatically close to stop cylinder motion, even at mid-stroke. They control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting.

These valves open to allow flow in one direction and close when flow stops or reverses direction.

Convert a continuous stream of air into a series of quick pulses, reducing air consumption by up to 50% and improving performance in air-blowing applications such as cleaning and drying.

With two 2-way integrated solenoid valves, these electrically controlled valves direct airflow to venturi pumps, which generate the suction you need to run end-of-arm tools, such as vacuum cups.

Control flow in two directions from a single source—these valves have two balls for independent control and shut-off of each outlet.

A padlock locks the handle of these valves in the shut-off position so you can disconnect air tools safely.

Also known as air fuses, these valves close automatically to turn airflow off when air volume exceeds the shut-off flow rate.

Install these valves on your air tank outlet—at the end of the day, they automatically close to save energy.

A muffler reduces exhaust noise. Valves allow airflow into your equipment and then quickly dump exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. Also known as quick exhaust valves.

Control the flow of exhaust air while also regulating the exhaust air speed. These valves dump exhaust air to the atmosphere without routing it back through a directional control valve. The 90° elbow shape allows you to install them in tight spaces. Also known as quick exhaust valves.