Vertical Inline Air Gap

This Standard establishes physical requirements and methods of testing for air gap fittings for protecting against back siphonage and back pressure backflow.

The California State Health and Safety Code Section 116875 requires that no person shall use any pipe, pipe or plumbing fitting or fixture, or solder or flux, that is not lead-free in the installation or repair of any public water system or any plumbing in a facility providing for human consumption except when necessary for the repair of leaded joint of cast iron pipe.

This Standard covers air gap units intended for water conditioning equipment installation and specifies requirements for materials, physical characteristics, markings, and performance testing methods for protecting against backsiphonage and backpressure backflow.

In order to obtain product acceptance in Massachusetts, products must be tested using industry accepted standards to ensure they are safe and work as designed for public use. The laboratories which perform such tests must be certified to meet industry-based guidelines to ensure appropriate testing.

NSF/ANSI 61 addresses the human health effects of drinking water system components. This performance-based standard evaluates the amount of contaminants that leach from the products into potable drinking water. The origin for this standard was lead reduction/ removal. Any lead that elutes into the water at over 0.25% fails this standard.

NSF/ANSI 372 establishes a standardized methodology for the determination and verification of product compliance to minimize lead contaminants. This standard is consistent with the United States Safe Drinking Water Act (SDWA) and its lead-free plumbing requirements, as well as the requirements of individual U.S. states such as California.

VIAgap™ has been reviewed and determined to comply with chapters SPS 382 through 384, Wisconsin Administrative Code, and Chapters 145 and 160, Wisconsin Statutes. The Department hereby issues an alternate approval to s. SPS 382.33(7) based on the Wisconsin Statutes and the Wisconsin Administrative Code.