Relieve heat buildup and prevent condensation from forming inside enclosures and other small spaces.

Always open, these are our most basic wall louvers.

Constructed with a thick frame and blades, these louvers have a long service life.

The included filter cleans the air as it passes through these louvers.

Thicker than standard movable-blade wall louvers, these are rugged and dependable.

Use these louvers in harsh environments—they won't rust.

A spring-loaded fusible link locks the blades closed if the temperature reaches 167° F. Louvers meet UL 10C fire requirements.

Cover the opening where air is pulled into your HVAC system.

Add a filter to these grilles for protection against dust and debris entering your HVAC system.

Place these diffusers in the grid of a drop ceiling to distribute air evenly throughout your space.

No additional fittings or collars needed.

Connect diffusers to duct.

Diffusers come with a collar and damper already in place for simple installation.

Install onto floor ducts to direct hot and cold air from your HVAC system.

No need for clamps or connectors—duct and fittings have a male end that is slightly smaller than its female end for simple assembly.

Regulate airflow by adjusting dampers from fully open to fully closed.

Also known as barometric dampers, these dampers improve furnace performance by automatically opening and closing to maintain consistent airflow despite changing environmental conditions.

Control the flow of air and material through duct systems.

Often added to existing systems, these gates install without disassembling duct. Also known as half gates.

For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.

The expanded mesh on these vent caps provides spark protection.

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

These breather vents withstand corrosion in damp environments.

Secure access to vented openings in pipe and tanks—the cap can be locked to prevent tampering.

Minimize moisture buildup in enclosures. Also known as drain plugs, these breather vents have a small outlet that allows condensation to drain.

Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.

A small hex size makes these high-flow mufflers a great fit for cramped spaces.

In addition to a filter, these mufflers have a wool felt disc to trap oil mist.

Replace your muffler less often—these have a filter design that stays clean longer than porous mufflers.

These mufflers exhaust through narrow holes on one end to provide a concentrated blast of air. Use them to eject items from your conveyor and direct exhaust away from delicate applications.

Also known as reclassifiers, these mufflers have a clear reservoir with a drain plug to remove and store oil mist for reuse.

Suitable for use with welding equipment, these mufflers are made of flame-resistant materials. They reduce noise by 35 dB.

Stick these discs onto breather and other circular vents to guard against water and dirt without obstructing flow.

Also known as sintered filters and frits, these discs have tiny holes that trap very small particles. Discs are often used in laboratories and gas-bubbling applications (sparging).

Also known as thermostatic steam traps, these increase the efficiency of your radiator by venting cool air.

When close to steam temperature, these traps—also called thermodynamic steam traps—release condensate from steam lines to save energy in food, pharmaceutical, and other sanitary environments.

Also known as inverted-bucket steam traps, these provide near-continuous discharge to accommodate high condensate levels.

Also known as inverted-bucket steam traps, these provide near-continuous discharge to accommodate high condensate levels.

These vents have louvers with foam filters to keep out dust and falling liquids.

These vents maintain air pressure inside enclosures that may be exposed to indoor and outdoor temperature changes while keeping dust and water out.

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.

Attach these vents to the top or side of sealed enclosures, so air can flow through to equalize internal and external temperature and pressure.

Safe for use around hazardous gasses and dust, these vents maintain steady pressure and prevent moisture buildup from temperature changes inside enclosures.

Mount these drains at the bottom of your enclosure to let moisture drip out and keep electronics dry.

Vent air from your enclosure to equalize pressure and stop condensation from forming inside while securing cords in wet environments. These polyamide grips are lightweight and resist rusting.

Body is brass.

These valves have a cast iron body.

Turn the key to manually vent radiators and heaters.

Use this valve with oil, diesel fuel, gasoline, and kerosene.

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

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.

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.

These valves are often used in hydraulic and lubrication systems.

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.

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.

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 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.

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 VIII for use with water pressure vessels.

Designed to spin freely with the slightest breeze, these fans create a vacuum that draws air out from buildings and ventilation systems—no electricity required.

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

These fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts.

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.