AIRVAc indoor vacuum interface valves

U.S. Municipal l U.S. Developer l International l Other l Indoor

vacuum toiletBilfinger Airvac Water Technologies Inc. has in excess of thirty years of experience and holds numerous patents derived from the application of vacuum wastewater technologies for municipal and industrial wastewater collection and transport systems. Our extensive knowledge of vacuum wastewater systems has led to new products. One of these is the Vacuum Toilet line.

vacuum toilet wall It was in the early 1980's that we first designed and tested its vacuum toilet. After years of research and development, Bilfinger Airvac Water Technologies Inc. brings to the marketplace a new vacuum toilet that has a modern, sleek design and simple operation.

The AIRVAC Advantage - Vacuum Toilets offer optimum flexibility in sanitary liquid waste collection and transport through the use of a vacuum drainage system. This system, utilizing Vacuum Toilets, can be installed in buildings located where there is a need to control and conserve the amount of wastewater produced in each flushing cycle. The use of this technology can help solve the worldwide problems of water conservation and sewage disposal. Additionally, the use of Vacuum Toilets with a vacuum drainage system provides the designer a tool that can offer flexibility in installation and operation.

Reasons for Selecting AIRVAC Vacuum Toilets

• Limited water supply

• Expensive water and sewer hook up fees

• Expensive water and sewer utility rates

• Existing utilities inadequate for expansion

• Reduction and control of water consumption

• Controlled collection of both black and gray water

• Off-site construction of bathroom modules

Eliminate these Common Problems of Gravity Drainage Systems

• Gravity systems utilize plumbing vents, which are associated with roof leaks.

• Gravity systems utilize traps on floor drains. These traps may dry out and permit sewer gas to enter the building.


• Undetectable underground sewer leaks are an ever-present risk.

• Gravity systems require extensive floor excavation and backfilling for installation.

• Solid waste may collect in underground piping pockets and remain stationary for extended periods of time. Such conditions encourage bacterial growth and allow wastewater to become septic.

• Gravity systems necessitate cutting floors and excavating to make minor system repairs or revisions.

Major Features of Vacuum Drainage Systems

• Flexibility in Design - Wastewater can be lifted vertically up to 20' from point of collection. Essentially eliminates the need for piping under the floor within the building.

• Small Pipe Diameters (1-1/4" to 4") - Minimize installation costs, maintenance costs, and future modification costs.

• Overhead Piping Installations – Allows for added accessibility of the vacuum drainage system. Future modifications are easily accomplished.


• Vents & Traps May be Eliminated - AIRVAC Vacuum Interface Valves provide a positive seal between discharged wastewater and the lavatory, water fountain, or other fixture.


• Ease of Service and Changing of Valves -Valves may be changed or serviced with the transport system in operation.


• Water Conservation - AIRVAC Vacuum Toilet uses 2/3 gallon (or less) of water per flush.


• Virtual Elimination of Pipe Obstructions- Wastewater is transported at 15-18' per second. Possibility of bacterial growth is drastically reduced.

• Minimized Treatment Costs - Multiple collection tanks / discharge pumps can be used to separate different types of wastewater. Also optimizes re-use of non-contaminated wastewater streams.

• Transportation of High Solid-to-Liquid Ratios - The system is able to transport wastewater with high solid-to-liquid ratios