The most basic option for air and inert gas applications.

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.

Change set pressure to suit your application—this valve includes four interchangeable color-coded springs with different set pressure ranges.

Protect your water-heating system with these valves that meet ASME Code Section IV for hot water heaters and boilers.

These valves meet ASME Code Section I for use with steam power boilers requiring pressure relief above 15 psi.

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

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.

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

Less than a quarter of the height of standard pressure-relief valves, these are often installed on tanks in low-clearance areas.

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.

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.

Thicker walls and a 304 stainless steel seal make these valves tougher than brass pressure-regulating valves.

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

Excellent performance at low pressures.

Often used on dispensers, humidifiers, and fountains, these valves have a 316 stainless steel body that can stand up to deionized water and corrosive conditions.

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

Rated for more than double the temperature of standard pressure-regulating valves, these can withstand temperatures up to 550° F.

Valves have a brass body.

Withstand inlet pressures up to 3,500 psi.

For easy panel mounting in your water system, 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.

A plastic body and fluoroelastomer seal stand up to harsh chemicals.

Body is cast iron.

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

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.

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

For a longer service than cast iron valves, these have a durable bronze body and a 303 stainless steel seal.

Threads below the adjustment knob and an included panel-mount nut allow you to add these valves to your instrument panel.

These valves have a vented relief port to exhaust discharge directly.

Regulate vacuum levels from your instrument panel with these valves that have threads below the adjustment handle and a panel-mount nut.

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