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STUDOR

STUDOR is a brand specializing in air admittance valves (AAVs) and related venting solutions for plumbing and drainage systems. Founded in the United States, STUDOR is recognized for its mechanical venting technology that eliminates the need for traditional roof penetrations in drain-waste-vent (DWV) systems. The brand's product line includes air admittance valves, two-way vents, mini-vents, vent caps, and recessed valve boxes, all designed to maintain proper air pressure in drainage systems while preventing sewer gas escape. STUDOR products are constructed primarily from plastic (ABS or PVC) and aluminum, with slip, threaded, or solvent weld connection types. Key specifications include overall diameters ranging from 2 inches to 6 7/8 inches and heights from 3 5/8 inches to 5 1/4 inches. The valves operate on a mechanical principle: they open to admit air into the drainage system during fixture discharge and close to seal against sewer gas when the system is at rest. STUDOR valves are certified to standards such as ANSI/ASSE 1050 and 1051, ensuring compliance with plumbing codes in many jurisdictions. 3G Electric supplies a range of STUDOR drain air vents and valves, including the Two-Way Vent (MPN 20297), Air Admittance Valve (MPN 20302), Mini-Vent Air Admittance Valve (MPN 20301), Recessed Air Admittance Valve Boxes (MPN 20381), and Vent Cap (MPN 20398). These products are available in multiple SKUs with color options including black, white, and silver. 3G Electric supports procurement specialists and plant engineers by providing detailed specifications, logistics support, and global shipping for STUDOR components used in commercial, industrial, and residential plumbing applications.

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About STUDOR

STUDOR is a brand specializing in air admittance valves (AAVs) and related venting solutions for plumbing and drainage systems. Founded in the United States, STUDOR is recognized for its mechanical venting technology that eliminates the need for traditional roof penetrations in drain-waste-vent (DWV) systems. The brand's product line includes air admittance valves, two-way vents, mini-vents, vent caps, and recessed valve boxes, all designed to maintain proper air pressure in drainage systems while preventing sewer gas escape. STUDOR products are constructed primarily from plastic (ABS or PVC) and aluminum, with slip, threaded, or solvent weld connection types. Key specifications include overall diameters ranging from 2 inches to 6 7/8 inches and heights from 3 5/8 inches to 5 1/4 inches. The valves operate on a mechanical principle: they open to admit air into the drainage system during fixture discharge and close to seal against sewer gas when the system is at rest. STUDOR valves are certified to standards such as ANSI/ASSE 1050 and 1051, ensuring compliance with plumbing codes in many jurisdictions. 3G Electric supplies a range of STUDOR drain air vents and valves, including the Two-Way Vent (MPN 20297), Air Admittance Valve (MPN 20302), Mini-Vent Air Admittance Valve (MPN 20301), Recessed Air Admittance Valve Boxes (MPN 20381), and Vent Cap (MPN 20398). These products are available in multiple SKUs with color options including black, white, and silver. 3G Electric supports procurement specialists and plant engineers by providing detailed specifications, logistics support, and global shipping for STUDOR components used in commercial, industrial, and residential plumbing applications.

Common Applications

  • Commercial plumbing — STUDOR Air Admittance Valve (MPN 20302) for venting multiple fixtures in office buildings
  • Industrial drainage — STUDOR Two-Way Vent (MPN 20297) for pressure equalization in large-diameter drain lines
  • Residential renovation — STUDOR Mini-Vent (MPN 20301) for adding a sink in a basement without roof penetration
  • Ventilation system — STUDOR Vent Cap (MPN 20398) for terminating vent stacks in mechanical rooms
  • Concealed installation — STUDOR Recessed Air Admittance Valve Boxes (MPN 20381) for flush-mounting valves in walls

Frequently asked questions

Common questions about STUDOR from 3G Electric.

What is the operating principle of a STUDOR air admittance valve?

A STUDOR air admittance valve (AAV) uses a mechanical diaphragm or piston that opens when negative pressure occurs in the drainage system during fixture discharge, allowing air to enter and equalize pressure. When the system returns to neutral or positive pressure, the valve closes automatically to prevent sewer gas from escaping into the building. This eliminates the need for a traditional vent pipe through the roof.

Are STUDOR air admittance valves compliant with plumbing codes?

STUDOR air admittance valves are designed to meet ANSI/ASSE 1050 and 1051 standards, which are recognized by many plumbing codes in the United States and other jurisdictions. However, code acceptance varies by region, so it is important to verify local regulations before specifying these valves. STUDOR provides documentation and listings for code compliance on their products.

What connection types are available for STUDOR drain air vents?

STUDOR drain air vents and valves are available with slip, threaded, or solvent weld connection types. For example, the Two-Way Vent (MPN 20297) and Air Admittance Valve (MPN 20302) use slip connections, while the Mini-Vent (MPN 20301) uses a threaded connection. The Recessed Air Admittance Valve Boxes (MPN 20381) use solvent weld connections. Selection depends on the pipe material and installation method.

What materials are used in STUDOR vent caps and valves?

STUDOR products are primarily made from plastic (ABS or PVC) for valve bodies and internal components, with some models featuring aluminum parts. For instance, the Vent Cap (MPN 20398) has an aluminum body with a silver finish, while the Two-Way Vent (MPN 20297) and Air Admittance Valve (MPN 20302) are made of plastic in black or white. The material choice affects durability, UV resistance, and compatibility with different piping systems.

Can STUDOR mini-vents be used in residential applications?

Yes, STUDOR Mini-Vent Air Admittance Valves (MPN 20301) are commonly used in residential plumbing to vent individual fixtures such as sinks, lavatories, and washing machines. They have a 2-inch overall diameter and a threaded connection, making them suitable for tight spaces where a traditional vent pipe is impractical. They are rated for use with drainage systems up to a certain fixture unit load, so sizing should be verified per code.

Does 3G Electric supply STUDOR products?

Yes — 3G Electric (S) Pte. Ltd. supplies STUDOR products. We stock the STUDOR catalog and supply genuine factory-original products with full manufacturer warranty and technical support.