This appraisal is for the AVK range of DN 80 ductile iron spring hydrant valves. This Issue 2 is a replacement for the previous version of the appraisal which had reached its 5-year expiry date.
The spring hydrant valves are available with DN80, DN100 or DN80-100 slotted flanged outlets to AS 4087 Fig B5. The valves have a pressure classification of PN16.
A swab version is also available with removable internal components to allow direct full-bore access to the pipeline for insertion and removal of swabs for scouring purposes.
The spring hydrant valves are intended for use with drinking and non-drinking water supply and are operated by an attachment of a standpipe.