Watts Brass Tubular 3/4 SVS-3 Steam Air Vent 0.75 in

Product Description

The WATTS BRASS TUBULAR 3/4 SVS-3 is a non-vacuum, adjustable float-type steam air vent designed to purge air from steam heating systems. The brass body features an angle connection and a brass float that opens to release trapped air and closes when steam arrives, enabling rapid venting across the system. Maximum operating pressure is 10 psi. This type of vent is a standard service component installed by licensed plumbers and HVAC technicians during both new construction and retrofit work on hydronic steam systems.

The 3/4 SVS-3 is suited for residential and light commercial steam heating applications. It is specifically designed for use on radiators, convectors, and steam mains where efficient air removal is critical to system balance and heat distribution. The adjustable float mechanism allows the vent rate to be tuned for the specific demands of the installation point, making it versatile across different system configurations. Typical installations involve replacing worn or failed air vents on one-pipe or two-pipe steam systems.

Key Features

• Adjustable float mechanism for tunable venting rate at radiators, convectors, and steam mains
• Brass body and brass float construction for durability in wet steam service
• Angle connection for straightforward inline installation
• Non-vacuum design rated for steam heating service up to 10 psi
• Rapid air purging supports proper system balance and heat-up speed

Compatibility

Designed as an OEM-style replacement float-type steam air vent for residential and light commercial one-pipe and two-pipe steam heating systems, suitable for radiator, convector, and steam main service points.

Installation Notes

Installation is performed by a licensed plumber or qualified HVAC technician. Shut down the boiler and allow the system to cool and depressurize fully before removing or installing any steam vent. Apply appropriate thread sealant rated for steam service to all threaded connections. Verify system pressure does not exceed the 10 psi rating of this vent before returning the system to service.

Technical Specifications

• Connection Size: 0.75 inches
• Connection Type: Angle
• Float Material: Brass
• Body Material: Brass
• Maximum Pressure: 10 psi
• Vent Type: Non-vacuum adjustable float
• Weight: 2.42 pounds
• Package Quantity: 12 per case

Standard Information

• Brand: WATTS BRASS TUBULAR
• Manufacturer Part Number: 3/4 SVS-3