Vents for Water | McMaster-Carr

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Water

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Warning: Products have one, but not necessarily all, of the selected characteristics.

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

	Inlet Pipe Size Inlet Pipe Size

	Body Material Body Material

	Connection Style Connection Style

Threaded

Quick Clamp

	Maximum Pressure Maximum Pressure

	Gender Gender

Male

Female

	Inlet Gender Inlet Gender

Female

Male

	Valve Type Valve Type

Air Release

Relief

Pop Safety

	Maximum Temperature Maximum Temperature

	Fitting Material Fitting Material

Steel

Aluminum

	Shape Shape


90° Elbow	180° Bend

Straight

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Inlet Thread Type Inlet Thread Type

NPT

	Activation Activation

Pressure Driven

Manual

	Removes Particle Size Down To Removes Particle Size Down To

25 to 49 microns

	Minimum Temperature Minimum Temperature

	Inlet Location Inlet Location

Bottom

Side

	System of Measurement System of Measurement

Inch

	Overall Height Overall Height

	Relief Port Connection Type Relief Port Connection Type

Vent

Pipe

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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212 Products

About Pressure-Relief Valves

Breather Vents

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

Lockable Breather Vents with Cap

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

Stainless Steel Steam Traps

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

Sanitary Stainless Steel Steam Traps

Suitable for food, pharmaceutical, and other sanitary environments, these steam traps are made of 316 stainless steel with a Viton® fluoroelastomer O-ring to stand up to frequent washdowns with harsh cleaners and sanitizers.

Sanitary Energy-Saving Stainless Steel Steam Traps

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.

Energy-Saving Stainless Steel Steam Traps

Also known as thermodynamic steam traps, these discharge condensate when close to steam temperature for minimal energy loss.

High-Flow Stainless Steel Steam Traps

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

Energy-Saving Iron Steam Traps

Also known as thermostatic steam traps, these vent cool air and condensate to increase energy efficiency in your steam lines.

High-Flow Iron Steam Traps

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

Brass and Bronze Steam Traps

These steam traps offer good corrosion resistance.

Air-Release Valves for Water and Coolant

Body is brass.

Corrosion-Resistant Air-Release
Valves for Water and Coolant

These valves are made of corrosion-resistant materials for use in wet conditions and harsh environments.

Remote-Discharge Air-Release Valves for Water

These valves have a cast iron body.

Corrosion-Resistant Remote-Discharge
Air-Release Valves for Water

For excellent corrosion resistance in wet conditions and harsh environments, these valves have no metal parts.

Inline Air-Release Valves for Water

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.

Key-Operated Air-Release Valves for Water

Turn the key to manually vent radiators and heaters.

Pressure-Relief Valves

Pressure-Relief Valves for Water

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

Adjustable Pressure-Relief Valves for Water

Alter the set pressure to suit your application.

Precision-Adjustment Pressure-Relief Valves for Water

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

Made-to-Order Pressure-Relief Valves

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 from 150 to 3,300 psi.

ASME-Code Fast-Acting
Pressure-Relief Valves for Water

These valves meet ASME Code Section VIII for use with water pressure vessels.

ASME-Code Fast-Acting
Pressure-Relief Valves for Hot Water

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

Fast-Acting Temperature- and
Pressure-Relief Valves for Hot Water

Also known as T & P valves, these open when water temperature reaches 210° F or at the set pressure.