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

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

Change outlet pressure without using a gauge—turn the dial to adjust the outlet pressure in 5 or 10 psi increments.

Prevent changes to your pressure setting—these valves come set at a nonadjustable outlet pressure.

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.

Withstand inlet pressures up to 3,500 psi.

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

Reduce contaminants in gases used in research sample systems, emission monitoring systems, chromatography, and other high-purity applications. These valves have a 316 stainless steel and brass body with a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination.

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

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

Designed to reduce contaminants in high-purity applications using hydrogen and methane gas, these valves have a stainless steel and brass body with a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination.

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.

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

Body is brass or nickel-plated brass. All meet ASME Code Section VIII for use with air and inert gas pressure vessels.

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.

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

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

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.

Alter the set pressure to suit your application.

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

For precise control over your vacuum level, these valves have ±0.1% accuracy.

Commonly used with irrigation systems and laboratory equipment, these valves have NPT connections.

Attach these valves with NPT connections to threaded pipe.