Manufacturer Air Disc Round Diffuser Metal Exhaust Air Vent Grille Air Valve for Ventilation System

Product Description

EV- Metal Exhaust Air Valve

Definition: The EV Series is a round metal exhaust air valve designed for terminal air extraction and return-air applications in residential and commercial ventilation systems. Manufactured from powder-coated sheet steel, the valve features a manually adjustable center disc for airflow balancing, a sponge gasket to reduce air leakage around the mounting interface, and a supplied mounting collar for convenient duct connection. Standard sizes are available from Ø80 to Ø200 mm for ceiling or wall installation.

Specification

Application Scenarios:

The EV series air valve is widely used in residential, commercial, and industrial buildings. It is the ideal solution for air exhaust in bathrooms, kitchens, toilets, and offices. The design supports both ceiling-mounted and wall-mounted installations.

Core Materials and Manufacturing

• Premium Material: Manufactured from high-grade Sheet Steel, providing a much sturdier and more reliable construction compared to aluminum or plastic alternatives.

• Surface Finish: Features a heavy-duty White Powder Coated Finish (typically matte). This architectural-grade coating ensures the product is water-resistant, rust-resistant, and easy to clean while maintaining a contemporary look.

Structure & Functional Design

• Adjustable Airflow: The valve is designed with a Threaded Spindle, allowing users to precisely regulate the airflow volume simply by rotating the center control disc.
• Superior Sealing: The valve body is equipped with a high-density Sponge Gasket. This creates an air-tight seal against the mounting surface, preventing air leakage and smudging around the vent.
• Easy Integration: Every unit is supplied with a Mounting Collar, ensuring a perfect and secure fit into standard ventilation ducts.(Pre-installed on the valve body, simplifying connection to the air duct, supports bolt or rivet fixing)

Key Product Advantages:

• Thermal Stability: Engineered to withstand extreme heat and cold without warping or physical deformation, ensuring consistent performance in HVAC systems.

• High Durability: The steel construction is impact-resistant and does not age or become brittle over time.

• Contemporary Aesthetic: The minimalist round design and matte white finish add a modern touch to any interior decor.

• Low Maintenance: The smooth powder-coated surface prevents dust accumulation and is resistant to household cleaning agents.

Related Products

CD-RA

CD-SB

SV

Round Ceiling Diffuser

Square Ceiling Diffuser

Metal Supply Air Valve

Technical Specifications

(Custom configurations available upon request.)

Model	Dimension (mm)
	A	B	C	D
EV-80	115	62	42	77.5
EV-100	138	75	40	97.5
EV-125	164	100	46	122.5
EV-150	202	120	50	147.5
EV-160	211	130	54	157.5
EV-200	248	158	63	197.5

Installation Guide

Installation Guide

• Preparation: Ensure the ductwork is correctly aligned and free of obstructions.

• Insertion: Insert the mounting collar and the valve body into the designated duct opening.

• Securing: Fix the valve securely using screws or the provided mounting clips/collar to ensure it is flush with the surface.

• Airflow Regulation: Rotate the internal disc to achieve the required airflow volume for the specific room.

• Final Check: Operate the ventilation system to ensure there are no air leaks, vibrations, or abnormal noises.

Standard seaworthy package

Comparable Products

Feature	EV Metal Air Valve (Steel)	Plastic Vents (ABS/PVC)
Structural Rigidity	High	Material dependent
Heat Sensitivity	Lower dimensional sensitivity under normal HVAC conditions	More dependent on plastic grade
Surface	Powder Coated	Molded surface
Airflow Adjustment	Threaded adjustable disc	Model dependent
Seal	Sponge gasket	Model dependent
Appearance	Powder-coated metal finish	Molded plastic finish
Best Use	Projects preferring metal terminals	Lightweight / cost-sensitive applications

FAQ

Q1: What is the EV Exhaust Air Valve used for?

The EV Series is designed for exhaust and return-air terminals in residential and commercial ventilation systems. It can be installed on ceilings or walls.

Q2: How is the airflow adjusted?

Airflow is adjusted manually by rotating the center control disc to increase or decrease the opening.

Q3: What material is the EV valve made of?

The standard EV valve is manufactured from sheet steel with a white powder-coated finish. A separate stainless steel version may be available as EV-S.

Q4: Is a mounting collar included?

Yes. The EV valve is supplied with a mounting collar for connection to compatible ventilation ducts.

Q5: Can it be installed on a gypsum board ceiling?

Yes. Use the provided mounting collar to secure it to the ceiling cutout. The sponge gasket will hide any rough edges and ensure an airtight seal against the drywall.

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