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

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.

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.

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 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.

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.

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.

Alter the set pressure to suit your application.

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

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.

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 with catalysts, pH buffers, and electroplating solutions.

Our smallest pressure-regulating valve.

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

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, variable inlet pressure to a lower, stable outlet pressure.

Use this valve in light duty water systems with garden hose thread (GHT) connections.

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

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

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

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.

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.

Excellent performance at low pressures.

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

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.

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.

Flowmeters let you see the gas flow rate from a distance.

Push-to-connect fittings form a low-pressure seal around plastic or soft metal tubing.

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

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

Control steam line pressure with ±1 psi accuracy.

For use with acetylene, hydrogen, methane, propane, or propylene gas.

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.

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.

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

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

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

Also known as fusible plugs, these discs have a metal core that melts at a set temperature to exhaust discharge directly.

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

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

To set the pressure, unscrew the cap and turn the adjusting screw.

The pressure setting on these valves cannot be adjusted while they are installed.

When input pressure varies, use these valves to maintain a consistent pressure.

Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks.

Shield outdoor pipe and tank openings from the environment. Also known as vent caps, these breather vents have screens to allow air flow while blocking debris.

These breather vents are rated NEMA 6 to withstand periodic submersion in water.

Keep moisture, dirt, and debris from entering your oil reservoirs.

Safe for use around flammable and combustible gases, vapors, fibers, and dust, these vents allow air to flow through enclosures to maintain consistent pressure and reduce moisture buildup as temperatures change. They also stand up to washdowns.

No threaded hole or tools needed—snap these vents into enclosures with a maximum 1/8” panel thickness to let airflow in and keep water out even when submerged.

Rated NEMA 4X, these vents provide protection from washdowns, corrosion, and power jets of water.

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

Prevent dirty, contaminated water from backing up into your garden hose line—install these valves between a faucet and a garden hose.