A2-H8FVL - Perma-Loc Low Flow Flush Valve by Irritec (B1E7)

The A2-H8FVL Perma-Loc flush valve reduces pressure on the drip system and allows drainage from 920/940 size solid tubing.  The flush valve is designed to close on flow rate and to open on low psi as follows:

Open to Flush when pressure falles below 2 psi

Closes to Operate with flows of 0.7 gpm or greater