Type AB calculator tool

Free

1.0for iPhone, iPad

The Water Regulations Advisory Scheme Ltd

Developer

Apr 25, 2017

Update Date

Business

Category

App Store

Age Rating

Apps in this category do not contain restricted content.

Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Type AB calculator tool Screenshots

iPad

iPhone

About Type AB calculator tool

The WRAS Type AB calculator tool app is an easy-to-use design aid for designers and installers. It provides details of overflow dimensions which theoretically should meet the performance requirements for rectangular type AB air gap arrangements with a single feed. Please note that compliance with the regulatory requirements can only be determined once an air gap arrangement has been installed.

To use this app you will need to know the size of the inlet valve and the width of the base of the overflow slot. The app suggests the minimum dimensions for the height of the overflow slot and the air gap distance to the inlet valve.

Users should note that full compliance can only be confirmed once additional checks suggested in the app have been made under normal operating conditions. Failure to satisfy these performance requirements will result in the need to make modifications to the installation for example, the air gap to the inlet valve may need to be raised to prevent fluids splashing on to it.

This tool uses the calculation methods and associated validation criteria set out in BS EN 13077:2008