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For excellent corrosion resistance in wet conditions and harsh environments, these valves have no metal parts.
Body is brass.
These valves are made of corrosion-resistant materials for use in wet conditions and harsh environments.
An internal wire brush traps air bubbles and discharges them through the top relief port while allowing inline flow from the inlet to the outlet.
Turn the key to manually vent radiators and heaters.
Use this valve with oil, diesel fuel, gasoline, and kerosene.
Eliminate air pockets in your drinking water system with these valves. They meet NSF/ANSI 61, which designates them as safe to use with drinking water.
Our only air-release valves for steam, these seal shut when steam enters the valve to prevent system contents from escaping through the relief port.
Body is brass or nickel-plated brass. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.
The most basic option for air and inert gas applications.
For corrosion resistance in wet conditions and harsh environments, these valves have a 303 stainless steel body. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.
Change set pressure to suit your application—this valve includes four interchangeable color-coded springs with different set pressure ranges.
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.
Commonly used with high-volume blowers, compressors, and air-powered conveyors, these valves quickly relieve a large amount of air in systems with a pipe size of 2 or greater. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.
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.
Commonly used with high-volume blowers, compressors, and air-powered conveyors, these valves quickly relieve a large amount of air in systems with a pipe size of 2 or greater.
These valves meet ASME Code Section VIII for use with water pressure vessels.
Also known as T & P valves, these open when water temperature reaches 210° F or at the set pressure.
Protect your water-heating system with these valves that meet ASME Code Section IV for hot water heaters and boilers.
Use these valves with liquid argon, liquid nitrogen, and liquid oxygen.
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.
Choose these valves for small steam-heating boilers requiring pressure relief between 5 psi and 12 psi.
These valves meet ASME Code Section I for use with steam power boilers requiring pressure relief above 15 psi.
For use with low-pressure steam-heating boilers requiring pressure relief at 15 psi, these valves meet ASME Code Section IV.
Less than a quarter of the height of standard pressure-relief valves, these are often installed on tanks in low-clearance areas.
For a low-pressure seal around plastic and soft metal tubing, these valves have push-to-connect fittings.
Design a valve specifically for your process media and set pressure. Choose from a valve for air, inert gas, water, hydraulic oil, fuel oil, gasoline, or diesel fuel and a set pressure.
Alter the set pressure to suit your application.
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.
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.
These valves are often used with catalysts, pH buffers, and electroplating solutions.
A finely threaded adjustment screw lets you make precise set pressure adjustments.
To gradually relieve pressure in lines for diesel fuel, fuel oil, gasoline, and kerosene, these valves begin opening at the set pressure and fully open at about 10% over the set pressure.
These valves are often used in hydraulic and lubrication systems.
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.
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.
Quickly vent exhaust air to the atmosphere or divert it to another place in your system to speed up the movement of equipment. The 90° elbow shape allows you to install them in tight spaces. 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.
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.
Choose the pressure range you need. When these valves receive an air signal, they quickly dump exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. They're often used with air compressors that require continuous operation. Also known as quick exhaust valves.
Install these valves in the exhaust ports of air directional control valves to control exhaust air speed without needing access to your cylinder.
Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up.
The pressure setting on these valves cannot be adjusted while they are installed.
To set the pressure, unscrew the cap and turn the adjusting screw.
An external nut lets you adjust the pressure without disassembling the valve.
Set a specific pressure and these valves will maintain it.
Set a specific pressure and these valves will maintain it by diverting excess fluid to a tank.