This appraisal is for a range of tees and crosses with integral Hawle E2 resilient seated gate valves on each branch. This Issue 2 is a replacement for the previous version of the appraisal which had reached its 5-year expiry date.
The range includes tees (E2 Combi-III) and crosses (E2 Combi-IV) in sizes DN 100, DN 150 and DN 200 with a gate valve on each branch. There is also an option for a DN 100 vertical flanged outlet on some configurations to enable the installation of a hydrant or air valve.
The advantages of the Combi valves include a reduced number of components with fewer potential leak points, a smaller and tidier footprint and lower installation costs.