Why choose 'Black Valve' ?
■ Prevention of trap seal loss through pressure balancing : It completely resolves issues with negative and positive pressure within drainage pipes to ensure smooth drainage and ventilation, fundamentally preventing the chronic siphon effect (loss of the trap seal).
■ Creating a Pleasant and Hygienic Environment : Maintains a healthy sanitary environment within the building by completely blocking the entry of odors, pests, and viruses at the source.
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Save up to 10% to 40% on material quantities and construction costs!
Complete blockage of odors, pests, and viruses.
Black Valve Multi-Function Core
① Drainage and ventilation are linked for smooth operation
② Completely solves negative and positive pressure problems
③ Blocks odor, pests, and various viruses from flowing back
④ Economical design and easy construction
⑤ Reduce various material and construction costs
⑥ Easy to clean and maintain
Black Valve - Interlocking Drainage and Vent Operation Video
Vent drain System
In the design of sanitary facilities, the venting system acts as the unsung hero that ensures the smooth flow of water within the drainage system. It is a crucial component that maintains the trap seal, thereby blocking the backflow of odors, gases, and various viruses.
• Inadequate ventilation prevents the proper dissipation of the negative and positive pressures generated during drainage; this causes the trap seal to be siphoned out or pushed away—leading to a broken seal—and ultimately results in indoor odors, defects, and complaints.
• In other words, the venting system is a key facility that maintains the sanitary environment of a building by balancing drainage and ventilation pressures.
Home drain drainage and ventilation system
Black Valve is an advanced, single-module, interlocking system that integrates drainage and venting, revolutionizing the sanitary plumbing systems of all types of buildings—including apartments, officetels, hotels, villas, motels, and detached houses.
Black Valve provides essential, high-efficiency, and high-performance core solutions for drainage and venting in modern architectural plumbing systems.
Black Valve
Black Valve – Key Features and Core Operating Principles
① Interlocking automatic opening and closing : When drainage begins, the drainage and venting system automatically and immediately supplies air, and once drainage is complete, the dual valve closes instantly.
② Pressure regulation within the piping : It actively responds to the negative pressure (suction effect) and positive pressure (back-pressure) generated during drainage to maintain pressure balance.
③ Complete physical blockage : By utilizing the gravity and magnetic force of an internal swing cover to immediately close the passage after drainage, it completely blocks the entry of harmful external gases, odors, and pests into the room.
Black Valve – Key Advantages and Effects
① Maintaining a hygienic environment : Drainage and ventilation are automatically interlinked to prevent backflow.
② Prevention of Signal Station Destruction : It stabilizes drainage performance by preventing the loss of the water seal (depletion of water) in fixtures such as washbasins and toilets.
③ Noise reduction : It stabilizes the drainage flow, thereby reducing noise within the piping.
④ Economical construction : It minimizes the need for complex, separate ventilation piping and various auxiliary materials, making it cost-efficient in terms of both design and construction.
Black Valve - Installation Screen
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- Black valve & vent drain system is designed and constructed to solve the problem of negative and positive pressure by selecting 2 drain pipes or 1 drain pipe, toilet, washbasin, bathroom floor, drainage, and ventilation.
Black Valve - Drainage, Ventilation System Operation Principle
Black Valve (Drainage/Ventilation for Wastewater & Sewage Pipes) - Simplified Design and Installation Method
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- ● Black valve 50A, 100A horizontal or vertical pipe (drain, vent, backflow prevention)
Design and install at least one convenient location on the drain pipe.
Conventional Separate-System Method for Wastewater, Sewage, and Venting (Piping Venting)
Black Valve Combined Sanitary and Wastewater Drainage Venting System (Black Valve) Method
